EU Regulation 396/2005: Pesticide Residue Testing and the Critical Role of QuEChERS Evaporation in Food Safety

<div><div><p><strong>Researchers led by </strong><a target="_blank" rel="noopener noreferrer" href="https://kudova.group.uochb.cz/en"><strong>Eva Kudová</strong></a><strong> from IOCB Prague and Jitka Viktorová from UCT Prague have identified new androstane-based steroid derivatives that can significantly improve the effectiveness of existing antibiotics against multidrug-resistant </strong><i><strong>Staphylococcus aureus</strong></i><strong>.</strong></p></div></div><div><p>The team screened dozens of natural steroidal hormones and synthetic derivatives to see whether they could block bacterial efflux pumps – mechanisms that bacteria use to eject antibiotics and survive treatment. Two compounds emerged as particularly promising: they inhibited efflux pumps and lowered the effective doses of antibiotics such as ciprofloxacin and erythromycin.</p><p>Further analysis showed that one of the compounds also suppressed genes linked to bacterial virulence. Another key finding is that the most active molecules are non-toxic to human immune cells and showed no detectable endocrine activity, suggesting a favorable safety profile.</p><p>These findings support the idea that rationally designed steroid-based molecules could act as antibiotic adjuvants, helping existing drugs overcome bacterial resistance.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/IOCB_Prague_Steroidal_hormones_and_neurosteroids_novel_therapeutic_strategies_in_bacterial_infections_8e5d2a7b48.jpg" alt="IOCB Prague: Steroidal hormones and neurosteroids – novel therapeutic strategies in bacterial infections" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_IOCB_Prague_Steroidal_hormones_and_neurosteroids_novel_therapeutic_strategies_in_bacterial_infections_8e5d2a7b48.jpg 222w," sizes="100vw" width="1258" height="886"></p><blockquote><h4><strong>Original Article</strong></h4><h4><a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0223523426001613?via%3Dihub"><strong>Steroidal hormones and neurosteroids - novel therapeutic strategies in bacterial infections: Design, synthesis, and biological evaluation</strong></a></h4><p>Daniela Brdová, Bára Křížkovská, Jan Špaček, Zdeněk Míchal, Eva Jablonská, Ondřej Strnad, Hana Chodounská, Eszter Szánti-Pintér, Marina Morozovová, Václav Hanžl, Jan Tkadlec, Martijn Riool, Jan Lipov, Jitka Viktorová, Eva Kudová&nbsp;</p><p><i><strong>Eur. J. Med. Chem., 2026, 308, 118716</strong></i></p><p><a target="_blank" rel="noopener noreferrer" href="https://doi.org/10.1016/j.ejmech.2026.118716">https://doi.org/10.1016/j.ejmech.2026.118716</a></p><h6>licensed under <a target="_blank" rel="noopener noreferrer" href="https://creativecommons.org/licenses/by/4.0/"><strong>CC-BY 4.0</strong></a></h6></blockquote><h4><strong>Abstract</strong></h4><p>The global rise of antibiotic resistance necessitates novel therapeutic strategies for infectious diseases. Inhibition of bacterial efflux pumps, which contribute to multidrug resistance, represents a promising approach to restore or even increase the efficacy of existing antibiotics. Using fluorescence-based ethidium bromide accumulation, broth microdilution, and checkerboard assays, we evaluated 26 endogenous steroidal hormones and neurosteroids, along with 30 synthetic derivatives, for their ability to enhance antibiotic susceptibility in multidrug-resistant <i>Staphylococcus aureus</i>. Structure-activity relationship analysis identified compounds <strong>13</strong> and <strong>16</strong> as lead candidates, exhibiting strong efflux pump inhibition and marked reductions in the minimum inhibitory concentrations of ciprofloxacin and erythromycin. Both compounds showed additive effects in checkerboard assays. Modifications at C-3 (polar substitution) and C-17 (3α,5β-stereochemistry and nonpolar substitution) were essential for potent efflux inhibition and sensitization, although these modifications were not additive when combined. Transcriptome analysis further revealed that compound <strong>13</strong> significantly downregulated <i>S. aureus</i> virulence-associated genes when administered alone or in combination with antibiotics. Cytotoxicity assessment in human peripheral blood mononuclear cells and receptor transactivation assays for estrogen, androgen, and progesterone receptors indicated that the most active derivatives were non-toxic and lacked detectable endocrine activity, suggesting a favorable safety profile. Overall, these findings support the concept that rationally designed andostane-based steroidal scaffolds can function as competitive bacterial efflux pump inhibitors and serve as potential antibiotic adjuvants to mitigate efflux-mediated resistance.</p><h4><strong>Instrumentation</strong></h4><h5><strong>Structural characterization</strong></h5><ul><li><strong>AVANCE III 400 MHz NMR spectrometer</strong> (Bruker)</li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/library?mainauthorItems=3&amp;search=LTQ+Orbitrap+XL"><strong>LTQ Orbitrap XL HRMS</strong></a> (Thermo Fisher Scientific, ESI)</li></ul></div>

Steroidal hormones and neurosteroids – novel therapeutic strategies in bacterial infections

<p><strong>Metformin is currently the first-line oral drug of choice for the treatment of type 2 diabetes. It reduces glucose production in the liver, improves tissue sensitivity to insulin, and does not cause weight gain or hypoglycemia, which sets it apart from some other antidiabetic drugs. Moreover, its long-term beneficial effects on the risk of cardiovascular complications and mortality in people with type 2 diabetes have been well established. Researchers from the Institute of Physiology CAS (IPHYS) have identified a new group of blood metabolites that could help physicians objectively monitor whether patients with type 2 diabetes are taking their metformin as prescribed.</strong></p><h4><strong>New biomarkers for metformin use</strong></h4><p>A team led by Tomáš Čajka from the Laboratory of Translational Metabolism at IPHYS analyzed plasma samples from <strong>637 patients with type 2 diabetes treated with metformin</strong> and <strong>143 non-diabetic controls</strong> using advanced metabolomics and lipidomics. Among 614 detected metabolites, they identified five from the group of <strong>N-lactoyl-amino acids </strong>(e.g. N‑lactoyl-phenylalanine), which had previously been seen as unknown signals due to missing reference spectra in databases. The levels of these metabolites in the blood closely reflected the plasma concentrations of metformin. In patients with the highest metformin exposure, the concentrations of these metabolites were up to 7.2 times higher than in controls.</p><h4><strong>A sensitive “fingerprint” of the drug’s effect</strong></h4><p>N-Lactoyl-amino acids are formed in cells by combining lactate and amino acids, thus reflecting the metformin-induced changes in cellular energy metabolism. “<i>Importantly, even though they occur in plasma only at nanomolar concentrations, they reliably distinguish patients who take metformin regularly from those who take it irregularly or not at all</i>,” emphasizes T. Čajka.</p><h4><strong>Metabolomics in practice and international collaboration</strong></h4><p>The study also provides a detailed description of broader metabolic changes in type 2 diabetes, including increases in lactate, organic acids, and branched-chain amino acids, as well as extensive remodelling of the lipid profile. In addition to T. Čajka’s team, collaborators from the Institute for <strong>Clinical and Experimental Medicine in Prague</strong> and the <strong>West Coast Metabolomics Center</strong> (University of California, Davis) also participated in the study.</p><p>The results demonstrate that advanced metabolomics approaches developed at IPHYS within the <strong>CarDia project</strong> can find highly practical applications both in clinical studies and in personalized monitoring of treatment in patients with diabetes.</p><blockquote><h4><strong>The original article</strong></h4><h4><a target="_blank" rel="noopener noreferrer" href="https://ascpt.onlinelibrary.wiley.com/doi/10.1002/cpt.70205"><strong>Untargeted Metabolomics Identifies N-Lactoyl-Amino Acids as Dose-Responsive Plasma Biomarkers of Metformin Adherence in Type 2 Diabetes</strong></a></h4><p>Tomas Cajka, Jiri Hricko, Lucie Rudl Kulhava, Michaela Paucova, Michaela Novakova, Veronika Hola, Stanislava Rakusanova, Oliver Fiehn, Vojtech Skop, Ivana Lankova, Iva Miskova, Terezie Pelikanova, Martin Haluzik</p><p>Clin Pharmacol Ther, 119: 1057-1069</p><p><a target="_blank" rel="noopener noreferrer" href="https://doi.org/10.1002/cpt.70205">https://doi.org/10.1002/cpt.70205</a></p><h6>licensed under <a target="_blank" rel="noopener noreferrer" href="https://creativecommons.org/licenses/by/4.0/"><strong>CC-BY 4.0</strong></a></h6></blockquote><h4><strong>Abstract</strong></h4><p>Metformin is the most widely prescribed antidiabetic drug, yet adherence remains difficult to objectively assess. Using untargeted metabolomics and lipidomics, we analyzed plasma from 637 patients with type 2 diabetes (T2D) with confirmed metformin use and 143 nondiabetic controls, annotating 614 metabolites. Patients were stratified by plasma metformin into sub-therapeutic, therapeutic, and supra-therapeutic groups, and associations were evaluated by multiple linear regression and composite metabolite ranking. Five previously unannotated features were structurally identified as N-lactoyl-amino acids, whose levels correlated strongly with plasma metformin (ρ = 0.42–0.55, P &lt; 0.0001) and increased up to 7.2-fold in the supra-therapeutic group (&gt; 2000 ng/mL). While N-lactoyl-amino acids were consistently detected in the nanomolar range, they still displayed robust and dose-dependent associations with metformin. Broader metabolic changes in T2D included elevated lactate, organic acids, and branched-chain amino acids, together with reduced urea cycle metabolites. Lipidomics showed increases in saturated triacylglycerols and diacylglycerols and decreases in cholesteryl esters, sphingomyelins, and phospholipids. These findings establish N-lactoyl-amino acids as robust, dose-responsive plasma biomarkers of metformin exposure. Despite being up to four orders of magnitude less abundant than their amino acid precursors, they sensitively reflect mitochondrial lactate overflow and pharmacodynamic adaptation, offering objective assessment of adherence.</p>

New blood biomarkers reveal how faithfully diabetes patients take metformin

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The Czech Academy of Sciences (CAS) was established by Act No. 283/1992 Coll. as the Czech successor of the former Czechoslovak Academy of Sciences. It is set up as a complex of 54 public research institutions.

Czech Academy of Sciences

The Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences (IOCB Prague) is a leading scientific institution in the Czech Republic, recognized internationally. Its primary mission is basic research in the fields of chemical biology and medicinal chemistry, organic and material oriented chemistry, chemistry of natural compounds, biochemistry and molecular biology, physical chemistry, theoretical chemistry, and analytical chemistry. 

Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences

Organomation, founded in 1959, designs and manufactures high-quality nitrogen evaporators and extraction systems. Known for innovation and durability, their lab instruments are used globally for efficient sample preparation with strong customer support.

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Thermo Scientific™ LipidSearch™ Software

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<h3><strong>The promise of lipidomics</strong></h3><p><strong>Lipidomics is a new field of study crucial for understanding cellular physiology and pathology. The application of lipidomic profiling to disease phenotype analysis is a rapidly growing aspect of translational medical research. Identification of unique lipid biomarkers has the potential to distinguish healthy individuals from individuals at risk for disease, detect diseases earlier, and facilitate development of personalized treatments.</strong></p><p>Liquid chromatography combined with mass spectrometry (LC/MS) is a widely adopted technique for lipidomics analyses. Relative and absolute quantitation, and identification, of lipids from biological samples requires sophisticated software with an extensive, comprehensive database.<strong> Thermo Scientific™ LipidSearch™ software provides accurate identification of lipids and automatically integrates complex data into a concise report. With its easy-to-use web-based interface, it dramatically reduces data analysis time.</strong></p><figure class="image"><img style="aspect-ratio:915/494;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Scientific_Lipid_Search_Software_2_73b7d0a9e2.jpg" alt="Thermo Scientific™ LipidSearch™ Software: Easy-to-use web browser interface for automated and reliable identification." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_Lipid_Search_Software_2_73b7d0a9e2.jpg 245w," sizes="100vw" width="915" height="494"></figure><h3><strong>Automated identification and relative quantitation with LipidSearch software</strong></h3><p>LipidSearch software, developed jointly by Professor Ryo Taguchi and MKI, (Tokyo, Japan), is a powerful new tool for<strong> automatic identification and relative quantification of cellular lipid molecular species from large amounts of mass spectrometric data obtained in nano-infusion or LC-MS experiments. </strong>Using the industry-leading, high-resolution, accurate-mass <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products?category=5&amp;manufacturerItems=3&amp;search=orbitrap"><strong>Thermo Scientific Orbitrap™ technology</strong></a> with exclusive<strong> LipidSearch software</strong>, the most accurate and confident lipid profiles and identifications can be achieved more quickly than ever before.</p><ul><li><strong>Compatible with</strong> data acquired from Thermo Scientific™ triple quadrupole, ion trap, and Orbitrap mass spectrometers</li><li><strong>Largest lipid database</strong> containing <strong>&gt;1.5 million</strong> lipid ions and their predicted fragment ions</li><li><strong>Identification algorithms</strong> for product ion, precursor ion and neutral loss scans</li><li><strong>Alignment of lipid data</strong> obtained from multiple<strong> LC-MS and MS<sup>n</sup> experiments</strong></li><li><strong>Relative quantitation </strong>of identified lipid precursors in either LC-MS or infusion experiments</li></ul><p>The database contains <strong>defined structures and includes more than 1.5 million lipid ions and their predicted fragment ions. </strong>Fragmentation patterns are calculated and improved by using expert knowledge based on experimental results. Lipid adduct ions and MS<sup>n</sup> fingerprints are also included. Data are stored in XML files and are easily customized.</p><figure class="image"><img style="aspect-ratio:990/497;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Scientific_Lipid_Search_Software_3_91f1458663.jpg" alt="Thermo Scientific™ LipidSearch™ Software: Lipid fragment ions related to lipid headgroup, fatty acids, and backbone." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_Lipid_Search_Software_3_91f1458663.jpg 245w," sizes="100vw" width="990" height="497"></figure><h3><strong>LipidSearch software provides an easy-to-use, automated workflow</strong></h3><p><strong>From peak detection to relative quantitaiton and identification, LipidSearch software provides an easy-to-use, automated workflow.</strong></p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Scientific_Lipid_Search_Software_4_2043f3d667.jpg" alt="Thermo Scientific™ LipidSearch™ Software: LipidSearch software provides an easy-to-use, automated workflow." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_Lipid_Search_Software_4_2043f3d667.jpg 245w," sizes="100vw" width="1122" height="530"></p><h4><strong>Step 1 Data Analysis Module — Peak Detection</strong></h4><ul><li><strong>Raw data file reading</strong></li><li><strong>Smart peak detection</strong></li></ul><p>The peak detection engine implemented in<strong> LipidSearch software </strong>can handle<strong> different MS experiments and platforms. </strong>The combination of unique peak detection algorithms, tailored for each experiment and instrument type, and mass spectral processing functions enables accurate peak detection.</p><p><strong>LipidSearch software provides two different identification algorithms as well as scoring algorithms:</strong></p><ul><li><strong>A group-specific algorithm</strong> identifies lipids based on the polar head groups or fatty acids using a combination of precursor ion scanning and neutral loss scans from lipids mixtures.</li><li><strong>The comprehensive ID algorithm</strong> is used for product ion scans and can discriminate each lipid by matching the predicted fragmentation pattern stored in the database.</li><li>LipidSearch software also provides a <strong>set of scoring algorithms</strong> to filter out lower probability results</li></ul><h4><strong>Step 2 Identification Module — Lipid Identification</strong></h4><ul><li><strong>Group-specific ID (targeted)</strong></li><li><strong>Comprehensive ID (untargeted)</strong></li><li><strong>Scoring algorithms</strong></li></ul><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Scientific_Lipid_Search_Software_5_0abd534dd5.jpg" alt="Thermo Scientific™ LipidSearch™ Software: PG 17:0/17:0 Search Results." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_Lipid_Search_Software_5_0abd534dd5.jpg 245w," sizes="100vw" width="1003" height="456"></p><h4><strong>Step 3 Quantitation Module — Alignment and Quantitation</strong></h4><ul><li><strong>XIC peak integration</strong></li><li><strong>Retention time alignment</strong></li><li><strong>Relative quantitation</strong></li><li><strong>Statistical analysis</strong></li></ul><p>Prior to quantitation, lipid results from each sample are aligned within a retention time window. Identified lipids are quantified by detecting their precursor ions from full-scan MS and integrating extracted ion chromatograms.</p><p>Accurate peak areas are computed by denoising and smoothing the peak profiles prior to separating any partially overlapped peaks. Comparative analysis is then carried out between the multiple sample and control groups using <strong>t-test statistics.</strong> The mean peak area result for each group is displayed in a “box and whisker” plot.</p><figure class="image"><img style="aspect-ratio:1129/909;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Scientific_Lipid_Search_Software_6_196073034c.jpg" alt="Thermo Scientific™ LipidSearch™ Software: Alignment results for CoQ7, [M+NH4]+." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_Lipid_Search_Software_6_196073034c.jpg 194w," sizes="100vw" width="1129" height="909"></figure><p>Using the industry-leading, high-resolution, accurate-mass <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products?category=5&amp;manufacturerItems=3&amp;search=orbitrap"><strong>Thermo Scientific™ Orbitrap™ technology</strong></a><strong> </strong>with exclusive<strong> LipidSearch software</strong>, achieve the most accurate and confident lipid profiles and identifications more quickly than ever before. For targeted quantitation, LipidSearch software also supports the <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products?category=5&amp;manufacturerItems=3&amp;search=tsq"><strong>Thermo Scientific TSQ triple quadrupole MS systems</strong></a><strong>. </strong>For both lipidomics workflows, LipidSearch software <strong>automatically integrates complex data into a combined report to dramatically reduce data analysis.</strong></p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Scientific_Lipid_Search_Software_7_f6a5102f0a.jpg" alt="Thermo Scientific™ LipidSearch™ Software." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_Lipid_Search_Software_7_f6a5102f0a.jpg 245w," sizes="100vw" width="924" height="570"></p><h5><strong>Minimum/Recommended PC Requirements</strong></h5><ul><li><strong>OS: </strong>Microsoft® Windows® 7 Professional (x64) or Windows 8 (x64); English language<br><strong>CPU: </strong>Quad - or multi-core CPU, 2 GHz or higher<br><strong>Memory:</strong> 8 GB RAM or higher<br><strong>HDD: </strong>50 GB free space for LipidSearch software; 500 GB hard drive<br>SSD (optional): 50 GB free space for LipidSearch software; 256 GB solid-state drive</li></ul>

Thermo Scientific™ ProSightPD Software

Perform comprehensive analysis of top-down proteomics data with Thermo Scientific™ ProSightPD™ software.

<div container-id="cq-colctrl-lt8" comp-id="B1"><div><h3><strong>Confident proteoform identification and characterization</strong></h3></div></div><div container-id="cq-colctrl-lt8" comp-id="B2"><div><p><strong>Uncover and confidently characterize proteoforms within complex matrices, including proteoforms containing truncations, alternative splices, and post-translationally modified proteins.</strong>&nbsp;</p><p>Extensive searches make use of <strong>various fragmentation methodologies (e.g., ETD, HCD, UVPD)</strong>, allowing you to make full use of the high-quality <strong>MS/MS data</strong> obtained when searching against the<strong> full biological complexity present in UniProt. </strong>With<strong> Thermo Scientific ProSightPD software, </strong>see what is really there and make the most of your data.</p><div><h3><strong>Key benefits</strong></h3><h5><strong>Sophisticated tools at your fingertips</strong></h5><p><strong>Utilize several search modes</strong> for identifying intact and truncated proteins. 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srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_Mass_Frontier_Spectral_Interpretation_Software_3_167df5dc63.jpg 245w," sizes="100vw" width="740" height="405"></figure><h3><strong>Go from spectra to structure</strong></h3><ul><li>The HighChem Fragmentation Library™ includes <strong>&gt;54,000 fragmentation schemes, ∼ 220,000 individual reactions, and 256,000 chemical structures</strong>, all from peer-reviewed literature.</li><li>Spectral trees are fully annotated with fragmentation structures.</li><li><strong>FISh (fragment ion search) detection</strong> enables detection of structurally related compounds, indicating the site of transformations for drug metabolites.</li></ul><figure class="image"><img style="aspect-ratio:740/350;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Scientific_Mass_Frontier_Spectral_Interpretation_Software_2_37f024ef32.jpg" alt="Thermo Scientific™ Mass Frontier™ Spectral Interpretation Software" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_Mass_Frontier_Spectral_Interpretation_Software_2_37f024ef32.jpg 245w," sizes="100vw" width="740" height="350"></figure><h3><strong>Build your pathways</strong></h3><ul><li>Interactively search more than <strong>370 curated</strong> <strong>biochemical pathways</strong> with<strong> Thermo Scientific™ Metabolika™</strong> pathway mapping.</li><li>Create and understand fragmentation pathways and mechanisms using advanced fragmentation scheme knowledge base drawn from more than 99% of published fragmentation pathways.</li></ul><figure class="image"><img style="aspect-ratio:740/410;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Scientific_Mass_Frontier_Spectral_Interpretation_Software_4_7d1b4f8671.jpg" alt="Thermo Scientific™ Mass Frontier™ Spectral Interpretation Software: An example of an included Metabolika biological pathway, which can be fully edited and added to." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_Mass_Frontier_Spectral_Interpretation_Software_4_7d1b4f8671.jpg 245w," sizes="100vw" width="740" height="410"></figure><h3><strong>Store, share and utilize your knowledge</strong></h3><ul><li><strong>Translate your data into actionable knowledge:</strong> create, curate and store your own spectral libraries and pathways.</li><li><strong>Ensure the highest quality proprietary libraries</strong> with full curation and mass recalibration tools.</li></ul><figure class="image"><img style="aspect-ratio:740/345;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Scientific_Mass_Frontier_Spectral_Interpretation_Software_5_e89924a0b7.jpg" alt="Thermo Scientific™ Mass Frontier™ Spectral Interpretation Software: The new curator module automates spectral tree curation, fragment annotation and mass recalibration for your proprietary compounds to build a high quality curated local MSn library." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_Mass_Frontier_Spectral_Interpretation_Software_5_e89924a0b7.jpg 245w," sizes="100vw" width="740" height="345"></figure>

Thermo Scientific Xcalibur Software

Confidently control, acquire, and interrogate data from a range of Thermo Scientific LC-MS systems and related instruments using Thermo Scientific Xcalibur software.

<div container-id="cq-colctrl-lt8" comp-id="B1"><div><h3><strong>Acquire high-quality data, regardless of your mass spectrometry platform</strong></h3></div></div><div container-id="cq-colctrl-lt8" comp-id="B2"><div><p><strong>Confidently control, acquire, and interrogate data from a range of Thermo Scientific LC-MS systems and related instruments using Thermo Scientific Xcalibur software.</strong></p><p>With simple method set-up, data acquisition, in-depth data interrogation and reporting tools as well as seamless integration to a range of additional Thermo Scientific application-specific software and cloud-based tools, Xcalibur software serves as the powerful, yet easy-to-use platform for your LC-MS analyses.</p><div><h3><strong>Key benefits of Xcalibur data acquisition software</strong></h3><h5><strong>Comprehensive toolset and landing page for all your installed applications</strong></h5><p>With a homepage that conveniently hosts all your installed applications and provides easy access to instrument control, method development, data acquisition, and reviewing, Xcalibur software makes it quick and easy to navigate through your workflows.</p><h5><strong>Ad-hoc data reviewing and quantitative capabilities</strong></h5><p>When you need to interrogate your data—from elemental compositions, plotting chromatograms, spectral views, performing library searches and much more—or perform basic quantitation, the <strong>FreeStyle and Quan Browser applications included with the Xcalibur software</strong> allow you to gain insights into your data.</p><h5><strong>Integration with cloud-based tools for productivity</strong></h5><p>The landing page for the Xcalibur software not only serves as the configurable portal to your applications, you can also receive application update information, ensuring that you have the latest version of software. Additionally, cloud-based applications allow you to remotely monitor your systems and drive productivity.</p><h3><strong>About Xcalibur data acquisition software</strong></h3><div><p>The <strong>customizable landing page (or Roadmap View) </strong>enables easy access to all your installed applications, from those included with Xcalibur software to your application-specific software packages.</p><p>Not only can you receive notification when there is a new version of any installed application, you can also access the <a target="_blank" rel="noopener noreferrer" href="https://thermo.flexnetoperations.com/control/thmo/login" aria-label="XApp Store - open in a new tab" data-uw-rm-ext-link="" uw-rm-external-link-id="https://thermo.flexnetoperations.com/control/thmo/login$xappstore"><strong>XApp Store</strong></a> for more information on the latest applications and try many of them for free for 60 days.</p><p>A host of<a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1764"><strong> cloud-based applications </strong></a>are available from the Roadmap View, including <a target="_blank" rel="noopener noreferrer" href="https://www.thermofisher.com/cz/en/home/industrial/mass-spectrometry/liquid-chromatography-mass-spectrometry-lc-ms/lc-ms-software/lc-ms-data-acquisition-software/xcalibur-data-acquisition-interpretation-software.html?open=almanac#almanac"><strong>Almanac</strong></a>, which allows for web- or smartphone-based monitoring of your MS.</p><figure class="image"><img style="aspect-ratio:740/400;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Scientific_Xcalibur_Software_35361ffe4b.jpg" alt="Thermo Scientific™ Xcalibur™ Software: The customizable landing page (or Roadmap View)." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_Xcalibur_Software_35361ffe4b.jpg 245w," sizes="100vw" width="740" height="400"></figure><div><p>Regardless of the experimental design, it should be easy to set-up your mass spectrometer to acquire high-quality data. <strong>The Method Editor allows you to quickly and simply create acquisition methods</strong> that control the necessary parameters and drive your acquisition requirements.</p><p>For the <strong>latest generation of mass spectrometers,</strong> there are numerous <strong>pre-configured method templates </strong>arranged by application area. These methods allow users of any experience level to acquire data relevant to their questions. Alternatively, the templates can be used as a starting point to facilitate rapid method development. Each method covers all instrument parameters as well as those for data acquisition, reducing complexity of set up.</p><figure class="image"><img style="aspect-ratio:740/410;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Scientific_Xcalibur_Software_2_baa5610a5d.jpg" alt="Thermo Scientific™ Xcalibur™ Software." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_Xcalibur_Software_2_baa5610a5d.jpg 245w," sizes="100vw" width="740" height="410"></figure><div><p>Modern visualization tools allow you to rapidly answer questions as you qualitatively interrogate your data.</p><p>The <strong>FreeStyle application,</strong> <strong>provided with the Xcalibur software</strong>, allows you to interact with your data from simple chromatographic detection and integration to spectral library searching, spectral deconvolution or diagnostic plots.</p><figure class="image"><img style="aspect-ratio:740/400;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Scientific_Xcalibur_Software_3_221d41f756.jpg" alt="Thermo Scientific™ Xcalibur™ Software." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_Xcalibur_Software_3_221d41f756.jpg 245w," sizes="100vw" width="740" height="400"></figure><div><p><strong>For rapid quantitation of a small number of targets, </strong><a target="_blank" rel="noopener noreferrer" href="https://www.thermofisher.com/cz/en/home/industrial/mass-spectrometry/liquid-chromatography-mass-spectrometry-lc-ms/lc-ms-software/lc-ms-data-acquisition-software/xcalibur-data-acquisition-interpretation-software.html?open=quan#quan"><strong>Quan Browser</strong></a><strong>, included with the Xcalibur software, </strong>allows you to quickly identify component peaks, determine integration criteria, and visualize calibration curves, integrations, and results.</p><p><strong>Xcalibur software allows you to interactively edit </strong>processing parameters, report data and rapidly access your quantitative information while processing your quantitation sequences.</p><figure class="image"><img style="aspect-ratio:740/410;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Scientific_Xcalibur_Software_4_40201472f4.jpg" alt="Thermo Scientific™ Xcalibur™ Software." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_Xcalibur_Software_4_40201472f4.jpg 245w," sizes="100vw" width="740" height="410"></figure><h3><strong>FreeStyle data review application for Xcalibur software</strong></h3><div colctrl-id="2-1"><div><div container-id="cq-colctrl-lt8" comp-id="B1"><div><p><strong>For the qualitative analysis of any mass spectral data (.raw or .sld) in a highly visual environment, FreeStyle allows you to display chromatograms and spectra, detect and integrate chromatographic peaks, search mass spectral libraries, simulate mass spectra, subtract background spectra, apply scan filters, annotate plots with text and graphics, create and save layouts, and view the status of various instrument parameters during data acquisition.</strong></p></div></div></div></div><figure class="image"><img style="aspect-ratio:800/195;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Scientific_Xcalibur_Software_5_6a0f093b2f.jpg" alt="Thermo Scientific™ Xcalibur™ Software: FreeStyle data review application for Xcalibur software." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_Xcalibur_Software_5_6a0f093b2f.jpg 245w," sizes="100vw" width="800" height="195"></figure><div><p>With a familiar interface, the tools needed to access the information stored in your data are readily accessible. <strong>HRAM</strong> data intelligence means that <strong>data is displayed according to the mass accuracy of the MS system used to acquire it.</strong></p><p><strong>When it comes to visualizing your data, </strong>make use of unlimited plots, quick creation of plots from spectra, spectral annotation with structures, text and graphics, trending/diagnostic plots for status parameters, and scan header entries; float/dock/hide multiple windows and split across monitors to really get the most out of your data.</p><figure class="image"><img style="aspect-ratio:740/400;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Scientific_Xcalibur_Software_6_e6a704b2dc.jpg" alt="Thermo Scientific™ Xcalibur™ Software: FreeStyle data review application for Xcalibur software." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_Xcalibur_Software_6_e6a704b2dc.jpg 245w," sizes="100vw" width="740" height="400"></figure><p><strong>Create and customize highly visual map views of complex datasets</strong>, with simple modification of any plots and data views. Then use those views to generate your own visual reports, enhancing your insights.</p><figure class="image"><img style="aspect-ratio:740/420;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Scientific_Xcalibur_Software_7_1ac807c5fa.jpg" alt="Thermo Scientific™ Xcalibur™ Software." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_Xcalibur_Software_7_1ac807c5fa.jpg 245w," sizes="100vw" width="740" height="420"></figure><p><strong>High-resolution protein mass spectral data </strong>can be deconvoluted using <strong>the Xtract deconvolution algorithm</strong>, contained in the <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1837"><strong>Thermo Scientific BioPharma Finder</strong></a><strong> software</strong> to obtain the intact mass and a single, deconvoluted mass spectrum for the protein components within the charge state envelope.</p><figure class="image"><img style="aspect-ratio:740/420;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Scientific_Xcalibur_Software_8_c6820a5e8c.jpg" alt="Thermo Scientific™ Xcalibur™ Software." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_Xcalibur_Software_8_c6820a5e8c.jpg 245w," sizes="100vw" width="740" height="420"></figure><div><p>Discovering what is in your data doesn’t need to be challenging. The ability to search the <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1764"><strong>mzCloud</strong></a><strong> mass spectral library,</strong> <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1760"><strong>mzVault</strong></a>,<strong> or NIST </strong>with a single-click means that compound identification from MS and MS<sup>2</sup> data is quick and easy. You can also export spectral data to the NIST application.</p><p>Elemental compositions can be calculated using MS and MS<sup>2</sup> data, with isotopic simulations for added confidence.</p></div><div><h3><strong>Quan Browser application for Xcalibur software</strong></h3><div><div container-id="cq-colctrl-lt8" comp-id="B1"><div><p><strong>When you require a quick answer, the Quan Browser, included in the Xcalibur software, allows you to determine the concentration of analytes within your sample set when there is a small number of targets.</strong></p><figure class="image"><img style="aspect-ratio:800/195;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Scientific_Xcalibur_Software_9_781c806926.jpg" alt="Thermo Scientific™ Xcalibur™ Software: Quan Browser application for Xcalibur software." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_Xcalibur_Software_9_781c806926.jpg 245w," sizes="100vw" width="800" height="195"></figure><p>You can <strong>review or rework </strong>your component peak identifications and integration criteria, calibration curves for your quantitation standards, your standards, QC samples, blanks and unknowns with interactive editing of processing parameters.</p><figure class="image"><img style="aspect-ratio:740/385;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Scientific_Xcalibur_Software_10_55b04eedae.jpg" alt="Thermo Scientific™ Xcalibur™ Software: Quan Browser application for Xcalibur software." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_Xcalibur_Software_10_55b04eedae.jpg 245w," sizes="100vw" width="740" height="385"></figure><p><strong>The Quan Browser, included in the Xcalibur software,</strong> incorporates a results view where you can observe the data used to create calibration curves and peak integrations. Quantitation sequences, including bracketed sequences, can be processed, and any processing parameters interactively edited with the results are dynamically updated.</p><p>For <strong>larger quantitative studies</strong> we recommend either<strong> </strong><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/77"><strong>Thermo Scientific TraceFinder software</strong></a><strong> </strong>for high-throughput analyses, or <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/76"><strong>Thermo Scientific Chromeleon Chromatography Data System (CDS) software</strong></a> for regulated studies, such as regulated bioanalysis, which require tools for compliance.</p></div></div></div></div></div></div></div></div></div></div></div></div>

Thermo Scientific Compound Discoverer software

Compound Discoverer software addresses small molecule identification needs and workflows including untargeted metabolomics, drug metabolism, impurity, E&L, environmental, food & beverage, and forensic research.

Thermo Scientific mzVault offline advanced mass spectral database

mzVault provides you the capabilities to access and search mzCloud’s MS2-level spectral data off-line, or to store your own spectral library information.

<p><strong>Your data has inherent value, as it is the knowledge that you acquire. mzVault provides you the capabilities to access and search mzCloud’s MS<sup>2</sup>-level spectral data off-line, or to store your own spectral library information. Spectral information, and your knowledge, can be automatically sent from </strong><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1759"><strong>Compound Discoverer</strong></a><strong> into a new, or existing library which can then be searched using Compound Discoverer or</strong><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1757"><strong> Mass Frontier.</strong></a></p><div><p>When you need to curate proprietary libraries and ensure the highest quality data, <strong>Mass Frontier</strong> provides you with the same tools used to curate <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1764"><strong>mzCloud</strong></a>, meaning that <strong>you can ensure your spectral data has been filtered, recalibrated, averaged and fully structurally annotated, ready to share your knowledge within your organization.</strong></p></div><div><h3><strong>Key benefits</strong></h3><h5><strong>Know more unknowns off-line</strong></h5><p><strong>Sometimes it isn’t possible to be online and access </strong><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1764"><strong>mzCloud</strong></a><strong>.</strong> mzVault contains all MS<sup>2</sup>-level spectral data contained within mzCloud to allow for confident unknown identifications.</p><h5><strong>Create and share your knowledge&nbsp;&nbsp;&nbsp;&nbsp;</strong></h5><p><strong>Create, store and search your own in-house spectral libraries. </strong>Once you have identified unknowns through mzLogic, or you have your proprietary compounds, make sure that this valuable information can be leveraged.</p><h5><strong>Have I seen this unknown before?&nbsp;&nbsp;&nbsp;&nbsp;</strong></h5><p><strong>Even with extensive online structural databases, and mzLogic to propose a structure or sub-structure, there can be occasions where it remains an unknown.</strong> Store this information and re-use to see if you have previously observed any unknowns.</p><h5><strong>Curate your high-quality data</strong></h5><p><strong>When it is important to curate your valuable data</strong>, the <a target="_blank" rel="noopener noreferrer" href="https://www.thermofisher.com/cz/en/home/industrial/mass-spectrometry/liquid-chromatography-mass-spectrometry-lc-ms/lc-ms-software/mass-spectral-libraries.html?open=curator">Curator</a> tool from Mass Frontier allows you to use the same tools used to populate <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1764"><strong>mzCloud</strong></a>, ensuring the creation of your own high-quality mzVault proprietary libraries.</p></div>

Thermo Scientific Metabolika module for easy pathway analysis

Create, edit and search reaction pathways using the new Metabolika module to take your knowledge to the next level. 

<div style="height:auto;" id="metabolika"><div><div><div><div colctrl-id="7-1"><div><div container-id="cq-colctrl-lt8" comp-id="B1"><div><p><strong>Create, edit and search reaction pathways using the new Metabolika module to take your knowledge to the next level. With publication-quality graphical functionality to create and edit reaction pathways within</strong><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1759"><strong> Thermo Scientific Compound Discoverer 3.0</strong></a><strong> or greater, and </strong><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1757"><strong>Thermo Scientific Mass Frontier Software 8.0</strong></a><strong> or greater, and more than 370 curated and annotated biochemical pathways for a range of organisms, it is easier than ever to share your pathway knowledge.</strong></p><p>The Metabolika Module is also utilized within substructure searching, fragmentation prediction and for <strong>mzLogic</strong>, further increasing the chances of unknown compound identification.</p></div></div></div></div><div><p>When used within the <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1759"><strong>Compound Discoverer software</strong></a>, this module can take your data visualization to a new level with interactive statistical data overlay, including metabolic flux analysis data.</p><div><h3><strong>Key benefits</strong></h3><h5><strong>Create, edit and store reaction pathways&nbsp;&nbsp;&nbsp;&nbsp;</strong></h5><p>From the included &gt;370 metabolic pathways, through to your own reaction pathways, easily curate and edit your knowledge for future use within both the <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1759"><strong>Compound Discoverer</strong></a> and <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1757"><strong>Mass Frontier</strong></a> software.</p><h5><strong>Access knowledge of &gt;370 metabolic pathways&nbsp;&nbsp;&nbsp;&nbsp;</strong></h5><p>The combined knowledge of the included pathways isn’t just restricted to Metabolika, the information is also fully utilized for substructure searching as well as with<a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1762"> <strong>mzLogic</strong></a><strong>.</strong></p><h5><strong>Map pathways to your data, as well as visualize your statistical information</strong></h5><p>Pathways can be easily mapped to your detected compounds within the <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1759"><strong>Compound Discoverer software</strong></a>, with highly visual and interactive representation. Additionally, your statistical information from flux analyses can be displayed within Metabolika pathways for easy data visualization.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Scientific_Metabolika_module_for_easy_pathway_analysis_781f11c926.jpg" alt="Thermo Scientific Metabolika module for easy pathway analysis: An example of Metabolika pathways analysis tool with flux analysis data included, showing qualitative flux analysis of exchange rates from a stable isotope labeling experiment." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_Metabolika_module_for_easy_pathway_analysis_781f11c926.jpg 245w," sizes="100vw" width="960" height="500"></p></div></div></div></div></div></div>

Thermo Scientific mzLogic Data Analysis Algorithm

mzLogic solves a key challenge in small molecule identification by enabling the characterization of unknowns when high-quality MSⁿ data yield no matches in spectral libraries.

<div style="height:auto;" id="mzlogic"><div><div style="display:block;"><div><div><div container-id="cq-colctrl-lt8" comp-id="B2"><div><div><div container-id="cq-colctrl-lt8" comp-id="B1"><div><h3><strong>Accelerate unknown small molecule identification with mzLogic</strong></h3></div></div><div container-id="cq-colctrl-lt8" comp-id="B2"><div><p><strong>The mzLogic data analysis algorithm addresses one of the biggest challenges for small molecule characterization and identification-when, despite having sufficient high-quality and high-resolution MS<sup>n</sup> mass spectrometric data, there is no match in any spectral library, meaning you have an unknown.</strong></p><p>mzLogic combines the extensive fragmentation information available within the <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1764"><strong>mzCloud</strong></a> online advanced mass spectral library with the information in numerous online structural databases. As a result, mzLogic allows you to take thousands of potential structural candidates and automatically rank them based upon spectral similarity and sub-structural information – delivering confident candidates for your true unknowns.</p></div></div></div></div></div></div><div><h3><strong>Key benefits</strong></h3><h5><strong>Combine the benefits of multiple libraries and databases&nbsp;&nbsp;&nbsp;&nbsp;</strong></h5><p>The ability of mzLogic to combine the extensive, high-quality and high-resolution accurate mass, multi-stage (MS<sup>n</sup>) fragmentation information in <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1764">mzCloud</a>, with numerous online structural databases provides the greatest chance to confidently identify unknowns.</p><h5><strong>Take lengthy guesswork out of unknown identification&nbsp;&nbsp;&nbsp;&nbsp;</strong></h5><p>mzLogic uses the data from <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1764">mzCloud </a>and multiple other data sources to identify common sub-structural features from your MS<sup>n</sup> data, explaining as much of your fragmentation data as possible before the next stages of identification.</p><h5><strong>Go from thousands of potential candidates to a handful</strong></h5><p>Using elemental composition to search structural databases can return thousands of potential candidates; mzLogic uses MS<sup>n</sup> data and <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1764">mzCloud</a> fragmentation database information to explain as much structural information as possible, reducing thousands of potentials to a handful of confident candidates based upon structural similarity.</p><div><div><figure class="image"><img style="aspect-ratio:740/345;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Scientific_mz_Logic_Data_Analysis_Algorithm_05478bcf43.jpg" alt="Thermo Scientific mzLogic Data Analysis Algorithm: Take the guesswork out of small molecule unknown identification through the combination of mzLogic algorithm and the high quality, structurally diverse mass spectral fragmentation information contained within mzCloud, to propose and confirm structural identification." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_mz_Logic_Data_Analysis_Algorithm_05478bcf43.jpg 245w," sizes="100vw" width="740" height="345"></figure><h3><strong>How does your data relate to mass spectral libraries?</strong></h3><div style="height:auto;" id="massspectrallibraries"><div><div><div><div><p>Whether you are working to better characterize and understand <a target="_blank" rel="noopener noreferrer" href="https://www.thermofisher.com/cz/en/home/industrial/pharma-biopharma/pre-clinical-and-clinical-drug-testing/metabolite-identification.html">metabolism and drug analytes</a>, <a target="_blank" rel="noopener noreferrer" href="https://www.thermofisher.com/cz/en/home/industrial/food-beverage/food-analytical-testing/food-contact-materials.html">food and environmental samples</a>, <a target="_blank" rel="noopener noreferrer" href="https://www.thermofisher.com/cz/en/home/industrial/forensics/antidoping/doping-control-retrospective-analysis.html">designer drugs</a> or <a target="_blank" rel="noopener noreferrer" href="https://www.thermofisher.com/cz/en/home/industrial/pharma-biopharma/pharma-biopharma-learning-center/pharmaceutical-qa-qc-information/extractables-leachables-information.html">extractables and leachables</a>, the use of mass spectral libraries and online databases can help identify compounds in your samples. However, with increasing crossover between compound classes, new impurities, subtle compound transformations or metabolism and degradation products, sometimes no compelling match is made to the libraries you use.</p><p>Acquiring comprehensive high-resolution accurate- mass MS/MS and MS<sup>n</sup> data has been simplified with data acquisition tools such as <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1763"><strong>AcquireX</strong></a>, and general hardware improvements. Obtaining mass spectral libraries that contain broad chemical diversity, extensive fragmentation and reliable and concise data has been the biggest challenge.</p><p>The<strong> </strong><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1764">mzCloud</a> mass spectral database is the largest (in terms of total spectra and data per compound) publicly available online mass spectral fragmentation library. It contains high-resolution accurate-mass (HRAM) spectra, including exhaustive high-resolution MS/MS and multi-stage MS<sup>n</sup> spectra. Each entry contains considerable metadata and, most importantly, has been extensively curated (i.e., filtered, recalibrated, averaged, and annotated) to provide absolute confidence in the quality of its contents.</p><figure class="image"><img style="aspect-ratio:908/323;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Scientific_mz_Logic_Data_Analysis_Algorithm_2_959e175e53.jpg" alt="Thermo Scientific mzLogic Data Analysis Algorithm: High quality MS, MS/MS and MSn data can be used to interrogate the fully curated and annotated mass-spectral fragmentation library, mzCloud. Common substructural information can be used from the extensive fragmentation information to aid in unknown compound identification using mzLogic algorithm." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_mz_Logic_Data_Analysis_Algorithm_2_959e175e53.jpg 245w," sizes="100vw" width="908" height="323"></figure><h3><strong>How does mzLogic identify unknowns?</strong></h3><div style="height:auto;" id="identifyunknowns"><div><div><div><div><p>Each <strong>mzCloud library</strong> entry contains extensive fragmentation information, which has been acquired using both a range of collision energies and fragmentation techniques (collision induced and higher energy collisional dissociation, CID and HCD). When this information is combined with the broad chemical diversity of library entries, the likelihood that some or all of an unknown structure can be matched against an existing fragment within the library increases.</p><figure class="image"><img style="aspect-ratio:927/394;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Scientific_mz_Logic_Data_Analysis_Algorithm_3_b50ae0af70.jpg" alt="Thermo Scientific mzLogic Data Analysis Algorithm: mzLogic reduction of putative candidates using online structural databases and the extensive fragmentation information contained within mzCloud." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_mz_Logic_Data_Analysis_Algorithm_3_b50ae0af70.jpg 245w," sizes="100vw" width="927" height="394"></figure></div></div></div></div></div><div style="height:auto;" id="identifyunknowns"><div><div><div><div><p>As shown in the figure above, mzLogic is available as part of the<a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1757"><strong> Mass Frontier software</strong></a> and <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1759"><strong>Compound Discoverer software</strong></a> packages, and works as follows:</p><ol style="list-style-type:upper-latin;"><li>Online databases, such as <a target="_blank" rel="noopener noreferrer" href="http://www.chemspider.com" aria-label="ChemSpider - open in a new tab" data-uw-rm-ext-link="" uw-rm-external-link-id="http://www.chemspider.com/$chemspider">ChemSpider</a>, which contains more than 70 million structures, can be searched using an elemental composition. Even with the ability to use the high-resolution and accurate mass capabilities of <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products?category=5&amp;search=orbitrap"><strong>Orbitrap mass analyzers</strong></a> to reveal fine isotopic information, many hundreds or even thousands of potential structures could match the elemental composition.</li><li>The high-quality fragmentation information contained within mzCloud is <strong>compared to experimental data.</strong></li><li>mzLogic rapidly identifies structurally similar fragments through forward and reverse searches.</li><li>Based upon the identified sub-structures, the structural candidates from the online search are ranked in order of how much of the structure can be explained through the sub-structural matching.</li><li>This ranking based upon the use of real data, takes many hundreds or thousands of potential candidates and reduces them to a significantly smaller list of putative structures, with visualization tools to explain the ranking and structure accounted for by library fragments.</li></ol><div><div><h3><strong>What is the next step to confirm any potential candidates?</strong></h3><div style="height:auto;" id="potentialcandidates"><div><div><div><div><p>The ranked results from using mzLogic will either show that all the structure can be accounted for in that candidate or that there is still some structural information from the proposed candidate that cannot be accounted for. MS/MS and/or MS<sup>n</sup> fragmentation spectra typically contains substantial amounts of structural information, which can be further investigated using <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1759"><strong>Compound Discoverer</strong></a> or <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1757"><strong>Mass Frontier software</strong></a>.</p><p>Where a complete, in-depth analysis of MS<sup>n</sup> fragmentation data is required,<strong> </strong>Mass Frontier software provides visualization and understanding of fragmentation pathways using extensive MS<sup>n</sup> data. The<strong> Fragments and Mechanism tool </strong>simulates unimolecular dissociation of the proposed structures, including rearrangements and predicted fragments, and can be used to explain the experimental fragmentation data through fragment annotations to help identify which candidates are indeed plausible. Rather than coded fragmentation algorithms, <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1757"><strong>Mass Frontier software</strong></a><strong> bases fragmentation on mechanisms published in more than 95% of all peer-reviewed scientific journals.</strong></p><p>This approach adds greater certainty to putative structure identification through the deep fragmentation and characterization information provided by the high-quality data and extensive spectral trees in <strong>mzCloud.</strong></p><figure class="image"><img style="aspect-ratio:673/324;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Scientific_mz_Logic_Data_Analysis_Algorithm_4_1d09064e9e.jpg" alt="Thermo Scientific mzLogic Data Analysis Algorithm: Confident structural elucidation using automated fragmentation annotation of MSn spectral trees. Fragmentation pathways can also be predicted based upon submission of a structure and makes full use of the HighChem Fragmentation Library. This library contains information from more than 52,000 fragmentation schemes, 217,000 individual reactions, 256,000 chemical structures and 216,000 decoded mechanisms from peer reviewed literature." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_mz_Logic_Data_Analysis_Algorithm_4_1d09064e9e.jpg 245w," sizes="100vw" width="673" height="324"></figure></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div>

Thermo Scientific AcquireX Intelligent Data Acquisition Workflow

The Thermo Scientific AcquireX workflow enhances LC-MSn data acquisition by automating and connecting experiments for efficient, intelligent small-molecule analysis across five different routines.

Thermo Scientific™ TraceFinder™ Software

Driven by a powerful and intuitive set of acquisition and data processing tools, Thermo Scientific TraceFinder software provides rapid access to your results and increases output across the entire laboratory.

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