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

<p><strong>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 </strong><a target="_blank" rel="noopener noreferrer" href="https://www.nature.com/articles/s41467-026-68778-6#Abs1"><i><strong>Nature Communications</strong></i></a><strong>.</strong></p><p>“<i>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</i>,” said the article’s first author, <strong>David Panáček</strong> from CATRIN, who worked on the study during his internship at Imperial College London.</p><p><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"></p><p>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. “<i>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</i>,” said one of the corresponding authors, <strong>Michal Otyepka</strong>.</p><p>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"><strong> CEITEC – VUT</strong></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.</p><p>“<i>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,</i>” added another corresponding author, <strong>Nuria De Diego</strong>.</p>

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

<p><strong>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.</strong></p><p>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.</p><p>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.</p><h4><strong>Key Highlights:</strong></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><strong>Video transcription</strong></h3><p>In this interview, <strong>Ainslie Chen</strong> discusses her research on improving the detection and identification of hemoglobin variants using <strong>liquid chromatography coupled with high-resolution mass spectrometry (LC-HRMS)</strong>. 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.</p><p>Chen explains why her team selected LC-HRMS over established clinical techniques like <strong>capillary electrophoresis</strong> and <strong>gene sequencing</strong>. 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.</p><p>A key methodological insight from the project was the use of a <strong>C4 reversed-phase LC column</strong> 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.</p><p>Beyond hemoglobin analysis, Chen highlights the broader potential of high-resolution mass spectrometry in <strong>proteoform analysis</strong> 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 <strong>miniaturized mass spectrometers</strong> 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.</p><blockquote><p><strong>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.</strong></p></blockquote><blockquote><h4><strong>Concentrating on Chromatography Podcast</strong></h4><p>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!</p><p>You can find <strong>Concentrating on Chromatography Podcast </strong>in podcast apps:</p><ul><li><a target="_blank" rel="noopener noreferrer" href="https://open.spotify.com/show/1wZg67rCjoGju4yhqxI3tL"><strong>Spotify</strong></a></li><li><a target="_blank" rel="noopener noreferrer" href="https://podcasts.apple.com/tz/podcast/concentrating-on-chromatography/id1788429185"><strong>Apple podcast</strong></a></li><li><a target="_blank" rel="noopener noreferrer" href="https://podscan.fm/podcasts/concentrating-on-chromatography"><strong>podscan</strong></a></li></ul><p>and on <a target="_blank" rel="noopener noreferrer" href="https://www.youtube.com/@ChromatographyTalk/videos"><strong>YouTube channel</strong></a></p></blockquote>

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

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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.

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Thermo Scientific Syncronis C8 HPLC Columns

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<p><strong>Improve the consistency and reliability of your liquid chromatography (LC) separations using Thermo Scientific™ Syncronis™ C8 LC columns. High-purity, high surface area silica and dense stationary phase coverage minimize secondary interactions and deliver reproducible, high-efficiency separations.&nbsp;</strong></p><p>Double end-capping provides extra surface coverage and inertness toward basic compounds. Manufactured and rigorously tested in ISO 9000 facilities, these columns are designed to meet a range of analytical needs including fast method development, quantitative analysis, and quality control where less retention is required than when using a C18 column.</p><h5><strong>Excellent Peak Shapes for Enhanced Resolution and Sensitivity</strong></h5><ul><li>Dense surface coverage of silica minimizes secondary interactions and peak tailing</li><li>Double endcapped for extra surface coverage</li></ul><h5><strong>Exceptional Column-to-Column Consistency</strong></h5><ul><li>Manufactured, packed, and tested in ISO-9000-accredited facilities</li><li>Every column individually tested to meet stringent retention, efficiency, and peak symmetry specifications</li><li>Enhanced automated packing process</li></ul><h5><strong>Lower Hydrophobic Retention</strong></h5><ul><li>Recommended for moderately hydrophobic analytes or for when a less hydrophobic phase provides optimum retention</li></ul><h5><strong>Available in Three Particle Sizes</strong></h5><ul><li>1.7 μm for rapid ultrahigh-performance LC (UHPLC) separations, and 3 μm and 5 μm for more traditional HPLC analysis</li></ul><h4><strong>Specifications</strong></h4><ul><li><strong>Column type:</strong> Reversed Phase</li><li><strong>Endcapped:</strong> yes</li><li><strong>Max. Pressure:</strong> 5800 psi (400 bar)</li><li><strong>Packing Material:</strong> Spherical, Fully Porous, Ultrapure Silica</li><li><strong>Stationary phase:</strong> C8</li><li><strong>USP Type:</strong> L7</li><li><strong>Surface Area:</strong> 320 m<sup>2</sup>/g</li><li><strong>Temperature:</strong> 60°C</li><li><strong>Carbon load: </strong>10%</li><li><strong>Phase:</strong> Reversed Phase</li><li><strong>Pore Size: </strong>100 Å</li><li><strong>pH: </strong>2 to 8</li></ul><h4><strong>Syncronis HPLC and UHPLC Columns</strong></h4><h5><strong>Enter a new world of chromatography</strong></h5><p>When developing a new method, one of the most important goals for the chromatographer is to achieve a consistent, reproducible separation. This makes selecting an HPLC column that offers highly-reproducible results essential to attaining this goal.</p><h5><strong>Features of Syncronis columns</strong></h5><p>Thermo Scientific Syncronis LC columns achieve high levels of consistency and reproducibility through:</p><ul><li>Highly-pure, high-surface-area silica</li><li>Dense bonding and double endcapping</li><li>Stringent manufacturing and testing protocols</li></ul>

Thermo Scientific Syncronis HILIC HPLC Columns

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Thermo Scientific Syncronis aQ C18 Polar Endcapped HPLC Columns

The polar end-capped C18 phase in Thermo Scientific Syncronis aQ Column provides optimal retention of polar analytes and is fully compatible with 100% aqueous mobile phases. 

<p><strong>Ensure consistent, predictable liquid chromatography (LC) separations of polar analytes using Thermo Scientific™ Syncronis™ aQ Columns. High surface area silica and dense stationary phase coverage minimize secondary interactions and deliver reproducible high-resolution separations. The polar end-capped C18 phase provides optimal retention of polar analytes and is fully compatible with 100% aqueous mobile phases. Manufactured and rigorously tested in ISO 9000 facilities, these columns are designed to meet a range of analytical needs including fast method development, quantitative analysis, and quality control.</strong></p><h5><strong>Highly Reproducible Separations</strong></h5><ul><li>Rigorously tested stationary phase bonded to the highest quality silica ensures consistent, predictable LC performance</li></ul><h5><strong>Excellent Peak Shapes for Enhanced Resolution and Sensitivity</strong></h5><ul><li>Dense surface coverage of silica minimizes secondary interactions and peak tailing</li></ul><h5><strong>Exceptional Column-to-Column Consistency</strong></h5><ul><li>Manufactured, packed, and tested in ISO-9000-accredited facilities</li><li>Every column individually tested to meet stringent retention, efficiency, and peak symmetry specifications</li><li>Enhanced automated packing process</li></ul><h5><strong>Alternative Selectivity</strong></h5><ul><li>Polar end-capped C18 stationary phase enhances retention of polar analytes</li></ul><h5><strong>Compatible with Highly Aqueous Mobile Phases</strong></h5><ul><li>Polar end-capping allows use of 100% aqueous mobile phases without loss of performance or stability</li></ul><h5><strong>Available in Three Particle Sizes</strong></h5><ul><li>1.7μm for rapid ultrahigh-performance LC (UHPLC) separations</li><li>3μm and 5μm for more traditional HPLC analysis</li></ul><h4><strong>Specifications</strong></h4><ul><li><strong>Column type:</strong> Reversed Phase</li><li><strong>Endcapped: </strong>Polar</li><li><strong>Max. Pressure:</strong> 5800 psi (400 bar)</li><li><strong>Packing Material:</strong> Spherical, Fully Porous, Ultrapure Silica</li><li><strong>Stationary phase:</strong> C18</li><li><strong>USP Type:</strong> L1</li><li><strong>Surface Area:</strong> 320 m<sup>2</sup>/g</li><li><strong>Temperature:</strong> 60°C</li><li><strong>Carbon load: </strong>19%</li><li><strong>Phase:</strong> Reversed Phase</li><li><strong>Pore Size: </strong>100 Å</li><li><strong>pH: </strong>2 to 8</li></ul><h4><strong>Syncronis HPLC and UHPLC Columns</strong></h4><h5><strong>Enter a new world of chromatography</strong></h5><p>When developing a new method, one of the most important goals for the chromatographer is to achieve a consistent, reproducible separation. This makes selecting an HPLC column that offers highly-reproducible results essential to attaining this goal.</p><h5><strong>Features of Syncronis columns</strong></h5><p>Thermo Scientific Syncronis LC columns achieve high levels of consistency and reproducibility through:</p><ul><li>Highly-pure, high-surface-area silica</li><li>Dense bonding and double endcapping</li><li>Stringent manufacturing and testing protocols</li></ul>

Thermo Scientific Syncronis Silica HPLC Columns

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Thermo Scientific Syncronis PREP HILIC HPLC Columns

Maintain consistent, predictable separations for your scale up purification needs with Thermo Scientific™ Syncronis™ HILIC preparative HPLC columns for polar and hydrophilic analytes.

<p><strong>Maintain consistent, predictable separations for your scale up purification needs with Thermo Scientific™ Syncronis™ HILIC preparative HPLC columns for polar and hydrophilic analytes. Highly pure, high surface area silica and dense stationary phase coverage minimize secondary interactions and deliver reproducible high-resolution separations.&nbsp;</strong></p><p>The zwitterionic stationary phase results in a neutral, highly polar surface and provides optional selectivity to C18 columns without ion-pairing or derivatization. Our columns come in a wide range of dimensions and an option for XtendedLife hardware which improves column lifetime by maintaining a uniform packed bed.</p><h5><strong>Alternative Selectivity</strong></h5><ul><li>Zwitterionic bonded phase enhances retention of polar and hydrophilic analytes.</li><li>No need for ion-pair or derivatization.</li><li>Enhanced sensitivity with MS detection.</li><li>Highly organic mobile phase facilitates desolvation in ESI-MS</li></ul><p><strong>Preparative HPLC Column Hardware Options</strong> - based on column inner diameter (i.d.) and column performance needs.</p><h5><strong>Standard Threaded and Standard Flange Hardware</strong></h5><ul><li>Designed for standard applications, expertly packed and robustly designed to provide versatile products for routine use.</li><li>Standard threaded hardware for column i.d. &lt; 40mm.</li><li>Standard flange hardware for column i.d. ≥ 40mm.</li><li>Standard hardware can be modified on request to be compatible with SFC.</li></ul><h5><strong>XtendedLife Hardware</strong></h5><ul><li>Improves column lifetime by incorporating an internal Dynamic Axial Compression (DAC) system, ensuring the media bed is continuously packed tightly.</li><li>Compatible with SFC and is available in dimensions up to 50mm i.d.</li></ul><p>Preparative Guards are a proven and cost effective way to extend the lifetime of your prep column. Our preparative guard columns require the use of a preparative guard holder.</p><h4><strong>Specifications</strong></h4><ul><li><strong>Column type:</strong> HILIC</li><li><strong>Endcapped:</strong> No</li><li><strong>Max. Pressure:</strong> 2000 psi (140 bar)</li><li><strong>Packing Material:</strong> Spherical, Fully Porous, Ultrapure Silica</li><li><strong>Stationary phase:</strong> Zwitterionic</li><li><strong>Surface Area:</strong> 320 m<sup>2</sup>/g</li><li><strong>Temperature:</strong> 60°C</li><li><strong>Carbon load: </strong>5%</li><li><strong>Phase:</strong> HILIC</li><li><strong>Pore Size: </strong>100 Å</li><li><strong>pH: </strong>2 to 8</li></ul><h4><strong>Syncronis HPLC and UHPLC Columns</strong></h4><h5><strong>Enter a new world of chromatography</strong></h5><p>When developing a new method, one of the most important goals for the chromatographer is to achieve a consistent, reproducible separation. This makes selecting an HPLC column that offers highly-reproducible results essential to attaining this goal.</p><h5><strong>Features of Syncronis columns</strong></h5><p>Thermo Scientific Syncronis LC columns achieve high levels of consistency and reproducibility through:</p><ul><li>Highly-pure, high-surface-area silica</li><li>Dense bonding and double endcapping</li><li>Stringent manufacturing and testing protocols</li></ul>

Thermo Scientific Dionex IonPac AS10 IC Columns

Analyze trace-levels of inorganic anions and organic acids using isocratic or gradient methods with the Thermo Scientific™ Dionex™ IonPac™ AS10 IC Column.

<p><strong>Analyze trace-levels of inorganic anions and organic acids using isocratic or gradient methods with the Thermo Scientific™ Dionex™ IonPac™ AS10 IC Column. Its high capacity permits the analysis of trace-level analytes in high-ionic-strength matrices. Use the Dionex IonPac AS10 column for the analysis of inorganic anions in high nitrate samples.</strong></p><h5><strong>Superior Chromatographic Performance in High Nitrate Samples</strong></h5><ul><li>Excellent resolution of weakly retained low-molecular-weight aliphatic acids</li><li>Selectivity and high capacity for analysis of trace-level analytes in high-ionic-strength matrices</li><li>Strongly retains nitrate for high-resolution analysis of trace anions in nitric acid and nitrate salts</li></ul><h5><strong>For Best Results</strong></h5><ul><li>Use a Dionex eluent generator for simplified eluent preparation for applications using less than 100mN hydroxide</li><li>Use the Thermo Scientific™ Dionex™ Anion Self-Regenerating Suppressor (ASRS™ 300) with the Dionex IonPac AS10 column for continuous suppression of traditional eluents and more concentrated eluents up to 200mM NaOH</li></ul><h4><strong>Specifications</strong></h4><ul><li><strong>Crosslinking: </strong>55% DVB</li><li><strong>Column Capacity:</strong> 170 μeq</li><li><strong>Column Chemistry:</strong> Hydroxide</li><li><strong>For Use With (Application):</strong> Separation of Inorganic Anions and Organic Acids</li><li><strong>Ion Exchange Group: </strong>Alkanol Quaternary Ammonium Ion</li><li><strong>Max. Pressure:</strong> 4000 psi (275 bar)</li><li><strong>Solvent Compatibility:</strong> pH 0 to 14, 0 to 100% HPLC Solvents</li><li><strong>Stationary phase:</strong> IonPac AS10</li><li><strong>Format:</strong> Standard Bore</li><li><strong>Packing Material: </strong>Ethylvinylbenzene/Divinylbenzene</li><li><strong>pH: </strong>0 to 14</li></ul>

Thermo Scientific Dionex IonPac AS11 IC Columns

Resolve a large number of inorganic anions and organic acids in approximately 15 minutes with the Thermo Scientific Dionex IonPac AS11 Analytical & Guard Column. 

<p><strong>Resolve a large number of inorganic anions and organic acids in approximately 15 minutes with the Thermo Scientific™ Dionex™ IonPac™ AS11 Analytical &amp; Guard Column. The Dionex IonPac AS11 is a relatively low-capacity column designed for fast gradient screening of inorganic anions and organic acid anions in simple sample matrices such as from foods, beverages, chemical process solutions, wastewaters, brines, and power plant waters.</strong></p><h5><strong>Superior Chromatographic Performance:</strong></h5><ul><li>Facilitates rapid analysis of organic acids and inorganic anions in well-characterized samples</li><li>Ideal for highly charged anions, including polyphosphates and polycarboxylates</li><li>Resolves organic acids and inorganic anions in complex sample matrices</li><li>Shortens analysis time and speeds throughput</li></ul><h4><strong>Specifications</strong></h4><ul><li><strong>Anion Exchange Capacity:</strong> 45 μeq</li><li><strong>Crosslinking: </strong>55% DVB</li><li><strong>Column Capacity:</strong> 45 μeq</li><li><strong>Column Chemistry:</strong> Hydroxide</li><li><strong>For Use With (Application):</strong> Analysis of Inorganic and Organic Acid Anions</li><li><strong>Ion Exchange Group: </strong>Alkanol Quaternary Ammonium Ion</li><li><strong>Max. Pressure:</strong> 4000 psi (275 bar)</li><li><strong>Solvent Compatibility:</strong> pH 0 to 14, 0 to 100% HPLC Solvents</li><li><strong>Stationary phase:</strong> IonPac AS11</li><li><strong>Format:</strong> Standard Bore</li><li><strong>Packing Material: </strong>Ethylvinylbenzene/Divinylbenzene</li><li><strong>pH: </strong>0 to 14</li></ul>

Thermo Scientific Dionex IonPac AS12A IC Columns

Thermo Scientific Dionex IonPac AS12A Analytical and Guard Columns resolve trace chloride and sulfate in high-carbonate samples

<p><strong>Separate inorganic anions and oxyhalides, such as chlorite and bromate, in environmental samples. The Thermo Scientific™ Dionex™ IonPac™ AS12A Analytical and Guard Columns resolve trace chloride and sulfate in high-carbonate samples and meet or exceed the requirements of U.S EPA Methods 300.0 (A) and (B). However, the advanced, high-capacity IonPac AS23 Carbonate Eluent Anion-Exchange column is recommended for determination of oxyhalides and inorganic anions, such as trace bromate, in ozonated drinking water.</strong></p><h5><strong>Fast Isocratic Separation of Inorganic Anions and Oxyhalides in Diverse Matrices</strong></h5><ul><li>Compliance monitoring of common anions in drinking water as specified in U.S. EPA Method 300.0 (A) and (B)</li><li>Separation of common inorganic anions and oxyhalides including chlorite, bromate and chlorate in less than 12 minutes</li><li>Superior retention and quantification of fluoride</li><li>Trace analysis of chloride and sulfate in high-carbonate samples</li><li>Solvent compatibility permits easy column cleanup after the analysis of samples with hydrophobic components.</li></ul><h5><strong>Multiple Formats Available for Application Flexibility</strong></h5><ul><li>4x200mm, 2x200mm analytical columns</li><li>4x50mm, 2x50mm guard columns</li><li>Longer 200mm columns facilitate higher resolution separations of more complex sample matrices</li><li>Smaller i.d. columns provide higher mass sensitivity, eluent and reagent conservation and lower operating costs</li></ul><h4><strong>Specifications</strong></h4><ul><li><strong>Anion Exchange Capacity:</strong> 52 μeq</li><li><strong>Crosslinking: </strong>55% DVB</li><li><strong>Column Capacity:</strong> 52 μeq</li><li><strong>Column Chemistry:</strong> Carbonate/Bicarbonate</li><li><strong>For Use With (Application):</strong> Separation of Inorganic Anions</li><li><strong>Ion Exchange Group: </strong>Alkyl Quaternary Ammonium</li><li><strong>Max. Pressure:</strong> 4000 psi (275 bar)</li><li><strong>Solvent Compatibility:</strong> pH 0 to 14, 0 to 100% HPLC Solvents</li><li><strong>Stationary phase:</strong> IonPac AS12A</li><li><strong>Format:</strong> Standard Bore</li><li><strong>Packing Material: </strong>Ethylvinylbenzene/Divinylbenzene</li></ul>

Products from category HPLC columns - page 6

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