Meeting EU Drinking Water Standards: The Critical Role of Sample Prep in Trace Contaminant Analysis

Although modern agriculture needs to be based on accurate real-time data on soil, plant, and environmental conditions, affordable, sufficiently sensitive, and robust monitoring devices for this purpose are currently missing. According to scientists, low-cost sensors based on new smart materials and printing technologies offer a suitable solution. The results of multidisciplinary research thus far and proposals for the development of these devices have been presented by researchers from Czechia, Great Britain, Spain, and the USA in a review article in the prestigious journal <a target="_blank" rel="noopener noreferrer" href="https://www.nature.com/articles/s41467-026-68778-6#Abs1">Nature Communications</a>.“Sensor technologies for monitoring plant health are still in their infancy. Only simple sensors capable of monitoring basic parameters such as pH, soil moisture, or temperature are commonly available on the market. However, if farmers are to face current challenges, including climate change, and ensure sufficient food for humanity, they need much more effective tools that will enable them to monitor, for example, various pathogens, including bacteria and fungi. In our opinion, a suitable solution is a combination of new smart materials and printing for the production of inexpensive, durable, and scalable materials,” said the article’s first author, David Panáček from CATRIN, who worked on the study during his internship at Imperial College London.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/CATRIN_Soucasne_senzory_nestaci_Vedci_navrhuji_novou_cestu_ke_sledovani_zdravi_rostlin_b4014952a3.jpg" alt="CATRIN: David Panáček" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_CATRIN_Soucasne_senzory_nestaci_Vedci_navrhuji_novou_cestu_ke_sledovani_zdravi_rostlin_b4014952a3.jpg 208w," sizes="100vw" width="1536" height="1152">Sensors for monitoring plant health, for example, lag behind similar devices used in human medicine. According to the authors, advances in materials science, which will enable the development of scalable sensor technologies, play a key role in this potential shift. “Printing techniques, including inkjet printing, screen printing, aerosol printing, 3D printing, and direct laser writing, offer flexible ways to produce flexible sensors, large-area sensors, and sensors integrated directly into plants. The review article summarizes recent advances in printable low-dimensional materials for agricultural sensors, analyzes their physico-chemical properties in relation to sensor performance, and discusses key challenges and future opportunities requiring interdisciplinary integration,” said one of the corresponding authors, Michal Otyepka.The research brought together materials scientists, chemists, biologists, sensing experts, and printing technology specialists. Materials research and the use of graphene-based smart materials were led by scientists from CATRIN at Palacký University and VŠB-Technical University of Ostrava. Plant biologists from CATRIN contributed their knowledge of plant development, their responses to stress conditions, and the monitoring of their properties. Researchers from Imperial College London took care of the electronics, while representatives from<a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/companies/36"> CEITEC – VUT</a> focused on printing technologies. The team also included leading experts in sensing from the Catalan Institute of Nanoscience and Nanotechnology in Barcelona, and Joseph Wang of the University of California San Diego, the “father of sensing and electrochemistry,” also contributed his extensive knowledge.“This is a groundbreaking study on this topic, which has managed to attract some truly big names in their respective fields. Last but not least, the study demonstrates that interdisciplinarity at CATRIN gives rise to completely new and promising research topics, such as plant sensing and its use for studying plant-environment interactions and smart agriculture,” added another corresponding author, Nuria De Diego.

Current sensors are not good enough. Scientists propose a new way to monitor plant health

In this episode of the Concentrating on Chromatography podcast, host David Oliva interviews Ainslie Chen about her cutting-edge research on hemoglobin variant testing using liquid chromatography-high resolution mass spectrometry (LC-HR-MS). Ainslie discusses her novel method for separating and identifying hemoglobin subunits with mass shifts less than 1 Da, overcoming critical limitations in conventional clinical assays.Hear firsthand how her team developed an LC-HR-MS workflow using a C4 reversed-phase column, tackled technical challenges (including why C18 columns fell short), and achieved unprecedented sensitivity for variant detection in both adult and neonatal samples. The conversation touches on the potential of mass spectrometry to revolutionize clinical diagnostics, the importance of reproducibility, barriers to adoption in routine labs, and how teamwork drives scientific innovation.Perfect for analytical chemists, clinical laboratorians, and anyone interested in the future of protein variant analysis, this episode also features Ainslie’s advice for early-career scientists and insights from her first ACS poster presentation.<h4>Key Highlights:</h4><ul><li>Motivation behind improving hemoglobinopathy testing &nbsp;</li><li>Technical advantages of LC-HR-MS over gene sequencing and CE &nbsp;</li><li>The crucial role of the C4 column in resolving challenging samples &nbsp;</li><li>Critical parameters for reproducible LC-HR-MS workflows &nbsp;</li><li>Barriers and outlook for clinical adoption of advanced mass spectrometry &nbsp;</li><li>The value of teamwork and mentorship in scientific research &nbsp;</li><li>Direct insights from recent ACS conference experiences</li></ul><h3>Video transcription</h3>In this interview, Ainslie Chen discusses her research on improving the detection and identification of hemoglobin variants using liquid chromatography coupled with high-resolution mass spectrometry (LC-HRMS). The work addresses limitations of conventional hemoglobinopathy testing, which often struggles to resolve very small mass differences between closely related hemoglobin subunits. Because even a single amino-acid substitution can significantly alter hemoglobin structure and function, high analytical resolution is essential for accurate diagnosis of conditions such as anemia and sickle cell disease.Chen explains why her team selected LC-HRMS over established clinical techniques like capillary electrophoresis and gene sequencing. While sequencing offers excellent accuracy, it is time-consuming, costly, and requires extensive sample preparation, making it impractical for routine clinical workflows. Capillary electrophoresis enables subunit separation but lacks the resolving power needed to distinguish variants differing by less than one Dalton. In contrast, high-resolution mass spectrometry provides both structural specificity and sensitivity, enabling confident identification of subtle hemoglobin variants with minimal sample preparation.A key methodological insight from the project was the use of a C4 reversed-phase LC column instead of the more common C18 column. Chen describes how the shorter carbon chain and larger pore size of C4 columns improved protein elution and reduced denaturation, leading to more reproducible separations. Critical parameters for reproducibility included consistent mobile-phase composition (0.1% formic acid in water and acetonitrile), controlled temperature (60 °C for LC, ~320 °C capillary temperature), and stable chromatographic conditions.Beyond hemoglobin analysis, Chen highlights the broader potential of high-resolution mass spectrometry in proteoform analysis and clinical diagnostics, including emerging applications in cancer detection. She acknowledges current barriers to clinical adoption—such as energy demands and instrument infrastructure—but points to advances like miniaturized mass spectrometers as promising steps toward wider use. The interview concludes with advice for young scientists: don’t hesitate to reach out to mentors, embrace collaboration, and view analytical chemistry as a versatile tool that bridges medicine, biology, environmental science, and beyond.<blockquote>This text has been automatically transcribed from a video presentation using AI technology. It may contain inaccuracies and is not guaranteed to be 100% correct.</blockquote><blockquote><h4>Concentrating on Chromatography Podcast</h4>Dive into the frontiers of chromatography, mass spectrometry, and sample preparation with host David Oliva. Each episode features candid conversations with leading researchers, industry innovators, and passionate scientists who are shaping the future of analytical chemistry. From decoding PFAS detection challenges to exploring the latest in AI-assisted liquid chromatography, this show uncovers practical workflows, sustainability breakthroughs, and the real-world impact of separation science. Whether you’re a chromatographer, lab professional, or researcher you'll discover inspiring content!You can find Concentrating on Chromatography Podcast in podcast apps:<ul><li><a target="_blank" rel="noopener noreferrer" href="https://open.spotify.com/show/1wZg67rCjoGju4yhqxI3tL">Spotify</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://podcasts.apple.com/tz/podcast/concentrating-on-chromatography/id1788429185">Apple podcast</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://podscan.fm/podcasts/concentrating-on-chromatography">podscan</a></li></ul>and on <a target="_blank" rel="noopener noreferrer" href="https://www.youtube.com/@ChromatographyTalk/videos">YouTube channel</a></blockquote>

Unlocking Hemoglobin Variant Detection: LC-HR-MS Breakthrough with Ainslie Chen

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Video

Environment

Scientific article

Interview

Science and research

The Czech Advanced Technology and Research Institute (CATRIN) at Palacký University is a cutting-edge scientific hub dedicated to advancing research in the fields of nanotechnology, biotechnology, and biomedicine. At its core, CATRIN boasts outstanding scientific teams, featuring international researchers. We emphasize interdisciplinarity, foster global collaborations, and work to translate our research findings into practical applications.

CATRIN

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.

Organomation

SIELC Samplify Automated sampling system

Samplify Is a device which allows unattended sampling of a reaction mixture or bioprocess or continue in line flow by taking small amount of liquid from the monitoring mixture and collecting it in a vial or a 96 wells plate

Samplify™ Is a device which allows unattended sampling of a reaction mixture or bioprocess or continue in line flow by taking small amount of liquid from the monitoring mixture and collecting it in a vial or a 96 wells plate. It also allows to dilute the sample with assigned dilution ratio and can provide reaction quenching to preserve the sample state at time of sampling. It has two main components: an autosampler and a probe. The Samplify™ &nbsp;controlled and setup by a PC software.<h3>Description</h3>It is a common task in the lab to periodically sample a reactor or a fermenter to obtain information about reaction kinetic, completion and have a tangible representation of intermediate states of a dynamic process. This usually done manually with pipettes or syringes, using stopwatch to measure time and requires to be in the lab during the entire process.With Samplify it can be done in automated mode. When an automated sampling process is used it increases accuracy, safety, and productivity. It reduces potential samples cross contamination, and exposure of the reaction mixture to oxygen or moisture, when anaerobic or moisture free conditions are required.<ul><li>Based on a proprietary alpha/beta mechanical configuration, Alltesta Miniature Autosampler and patent pending sample probe offers affordable and reliable automation for many analytical and liquid-handling applications.&nbsp;</li><li>Small controllable volume of sample can be programmed and precisely removed from the enclosed or open system. The sample will then be transferred to a vial with inert solvent with measured volume to create a controllable dilution factor.</li><li>A quench solution can be automatically preloaded in each vial to provide termination of reaction or biological process, and preserve sample content in the time of probing.</li><li>In order to effectively mix samples with diluents or quenching reagents a shaking capability of the autosampler tray can be initiated after each sample cycle.</li><li>PC based software allows quick, but flexible, setup of the sampling experiment. Several preloaded methods can be quickly adapted to a particular needs of the user.</li><li>For temperature sensitive samples the entire autosampler can be placed in the temperature controlled environment.</li><li>The device small size allow to place it close to the reactor and use short connection lines to minimize dispersion. Also a small cooler can be used to keep samples in cold conditions after they are collected.</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/SIELC_SIELC_Samplify_Automated_sampling_system_937b70e8d2.jpg" alt="SIELC: SIELC Samplify™ Automated sampling system." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_SIELC_SIELC_Samplify_Automated_sampling_system_937b70e8d2.jpg 245w," sizes="100vw" width="1346" height="663"><h3>Specifications</h3><h4>Samplify™ Autosampler:</h4><ul><li>Syringe volume: 4.0 mL</li><li>Pressure: up to 250 psi</li><li>Valve configuration: 7×6</li><li>Power Requirements: 24 VDC</li><li>Current Requirements: Up to 1.0 A</li><li>Dimensions (WHL): 160 x 145 x 195 mm / 6.3 x 5.71 x 7.68 in</li><li>Weight: &nbsp;3 kg / 6.6 lb</li><li>Inlets/Outlets: Thread 10-32 UNF compression type</li><li>Materials in contact with liquid: SS316, PTFE, PEEK</li><li>Tray capacity: 48 vials 1.8 mL volume or 96 wells plate</li><li>Communication: USB virtual serial port</li></ul><h4>Samplify™ Probe:</h4><ul><li>Connection: requires Alltesta-Samplify autosampler</li><li>Dimensions: 1 x 1 inch, DIA ¼ inch. Immersion length up to 6 inch</li><li>Materials in contact with liquid: Stainless Steel 316 (316L), PEEK &amp; PTFE</li><li>Variable sample volume: from 5 to 500 µL</li><li>Max. working pressure: 120 psi (8 bar)</li><li>Max. working temperature: &nbsp;200 °C</li></ul><h3>Software</h3>The Samplify can be controlled:<ul><li>directly through your software via serial commands (Alltesta™ protocol available upon request, please contact us at support@sielc.com),</li><li>remotely through our cloud software (autosampler.cloud),</li><li>directly via our Samplify PC software, allowing to fully control all the parameters of the sampling operations</li></ul><h3>Available Custom Options</h3>Metal-free version of the syringe pump includes no metal contact pump head.

PBI Barocycler 2320EXT Sample Preparation System

The Barocycler 2320EXT is a compact, bench top instrument that can process up to 16 samples simultaneously using PCT MicroTubes.

<h4>For the PCT-HD Sample Preparation System</h4>Pressure Cycling Technology (PCT) is a unique, patented technology platform based on repeated cycles of hydrostatic pressure between ambient (14.7 psi) and ultra-high levels. These rapid changes in pressure are used to control biomolecular interactions for applications such as accelerated proteolytic digestion, and improved extraction of cellular components, including proteins and lipids. The PCT platform allows for a high degree of safety, speed, reproducibility, and convenience in modern sample preparation protocols.The PCT-HD Sample Preparation System is a proven PCT-based workflow for processing small tissue samples for proteomic and other applications. PCT-HD combines efficient, hands-off tissue homogenization and protein extraction with pressure-enhanced digestion, for rapid, efficient and reproducible generation of peptides for MS analysis. This unique workflow combines two of PBI’s innovative sample preparation tools: the Barocycler 2320EXT and our patentpending PCT MicroPestles. PCT-HD and the Barocycler 2320EXT can provide unprecedented speed and reproducibility for biomarker discovery, yielding peptides ready for clean-up and MS within 2-4 hours from the start of tissue processing.The Barocycler 2320EXT is a compact, bench top instrument that can process up to 16 samples simultaneously using PCT MicroTubes. Features that come standard with the 2320EXT include: data input and output options to accommodate validation and quality control; computer-operated control with touch screen programming and automatic data logging; and the ability to control multiple pressure cycling parameters, such as the rate of pressure increase/decrease, both the high and low pressure levels, and the shape of the pressure profile (e.g., sine wave, square wave, and others). In addition, the 2320EXT is available with a choice of two different methods for temperature control (an external circulating waterbath for heating and cooling, or a built-in electric heater).<blockquote>Patent Pending</blockquote><h4>The Barocycler 2320EXT</h4><ul><li>Computer-operated control with Touch Screen Interface</li><li>Pressure Range: ambient - 45,000psi (310 MPa)</li><li>Choice of temperature control - heating/cooling or heating only</li><li>Max Temperature: 95˚C</li><li>Min Temperature: 4˚C with circulating waterbath, ambient with electric heating</li><li>Insulated closure for easier use at high temperatures</li><li>Chamber capacity: up to 16 samples in MicroTubes</li><li>Easily accessible USB port on front panel</li><li>Requires 110psi input air pressure</li><li>Input air pressure can be provided by an air compressor, house air or nitrogen lines, air or nitrogen tanks.</li><li>Pressure medium: Distilled Water</li></ul><h4>Touch Screen Interface</h4>Pressure Profiles are programmed via an onboard touch screen, which can be connected to a network. The instrument is also equipped with a USB port that can be used to connect a mouse or keyboard to the 2320EXT.<ul><li>Pressure Mode Settings: Barocycler, Ramp, Waveform</li><li>Cycled or Static Pressure</li><li>Network Enabled</li><li>Automatic Logging of All Run Parameters</li><li>Data Output&nbsp;</li><li>Save and Record Programs</li><li>Real-time pressure display graph shows pressure and temperature throughout the run</li><li>Touch Screen Temperature Control (with electric heating option only)</li></ul><h4>MicroTubes and MicroPestles</h4>The 2320EXT comes with a full MicroTube Adapter Kit, that includes the MicroTube Cartridges, Capper Tool, and other accessories that are required when using PCT MicroTubes in the 2320EXT. PCT μPestles, used in conjunction with PCT MicroTubes in the Barocycler, are designed for rapid, hands-off homogenization and extraction when working with minute amounts of solid tissue. PCT MicroTubes and MicroPestles are an integral part of the PCT-HD workflow.<ul><li>Process up to 3mg of solid tissue in 30uL of extraction reagent</li><li>Process as few as 5 x 104 cells</li><li>MicroTubes are constructed of non-wetting, low binding FEP plastic</li><li>MicroPestles are made from inert PTFE (Teflon)</li></ul>

Products from category Sample preparation automation focused on Sample Preparation distributed by Bioanalytic - page 1

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Unlocking Hemoglobin Variant Detection: LC-HR-MS Breakthrough with Ainslie Chen

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