<p><strong>We are pleased to invite you to our upcoming free online webinar on June 11, 2026 focused on one of the most pressing challenges in environmental monitoring and water quality management — PFAS (Per- and Polyfluoroalkyl Substances).</strong></p><p>As regulatory frameworks continue to evolve and compliance deadlines approach, laboratories, water utilities, and environmental professionals need robust, reliable, and cutting-edge analytical solutions to stay ahead.</p><blockquote><p class="cke-user_style-important"><strong>👉</strong><a target="_blank" rel="noopener noreferrer" href="https://events.teams.microsoft.com/event/91d97003-fe33-4dca-b80b-160d9f8a5655@485ca04e-6f74-4050-9764-cdb4bfa89c25"><strong>Registration HERE</strong></a></p></blockquote><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/ALS_analyzy_PFAS_a9e4a87fbc.jpg" alt="ALS: Advanced PFAS Analytical Services " srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_ALS_analyzy_PFAS_a9e4a87fbc.jpg 245w," sizes="100vw" width="600" height="336"></p><h4><strong>🎤 Our Speaker</strong></h4><p>The webinar will be hosted by <strong>Jana Kováčová, Ph.D., PFAS Regional Lead for Continental Europe Environmental Division</strong>, who has dedicated the last several years to the field of PFAS analysis and determination in ALS laboratories. Jana is a recognized expert in PFAS environmental analytics and will share practical insights and the latest developments in analytical strategies to help your organization achieve and maintain compliance.</p><h4><strong>🎯 What You Will Learn</strong></h4><ul><li>Latest <strong>regulatory developments</strong> and compliance requirements for PFAS in water, including <strong>EU Drinking Water Directive 2020/2184</strong> and its implications for water suppliers and laboratories.</li><li><strong>Regulatory updates for surface water and groundwater</strong> — what's new and what to expect next.</li><li>Overview of <strong>advanced analytical strategies</strong> for PFAS detection and quantification in water matrices and how we analyse PFAS samples.</li><li>Key <strong>analytical challenges</strong> associated with PFAS testing — from ultra-trace detection to matrix interferences and contamination control.</li><li>The critical importance of using tested <strong>sampling containers</strong> and sample preservation to ensure reliable results.</li><li>Illustrative <strong>examples of results</strong> from real-world PFAS water analyses.</li><li>How ALS can support your needs with <strong>accredited PFAS testing services</strong>.</li></ul><h4><strong>👥 Who Should Attend</strong></h4><p>This webinar is designed for our clients, professionals, laboratory and technical staff, scientists, as well as anyone with an interest in analytical chemistry who wants to better understand the occurrence of these "forever chemicals" in the environment. &nbsp;</p><h4><strong>💬 Q&amp;A Session</strong></h4><p>There will be a live Q&amp;A session at the end of the webinar. You are welcome to submit your questions in advance during registration or ask them live on the day.</p><h4><strong>📅 Additional Webinar Info:</strong></h4><ul><li><strong>Platform: </strong>Microsoft Teams (online)</li><li><strong>Time: </strong>10:00 CEST</li><li><strong>Language: </strong>English</li><li><strong>Duration:</strong> approx. 45 - 60 minutes (incl. Q&amp;A)<br>Extras: If you are unable to attend on the day, please register and we will provide you with the recording of the webinar.</li></ul><h4><strong>🔬 About ALS Environmental</strong></h4><p>ALS is a global leader in environmental testing and analytical services, providing accredited PFAS analysis to clients across Europe and beyond. Our dedicated PFAS experts help clients navigate the complex regulatory landscape with confidence.</p><blockquote><p>For further information, please contact us on: <strong>marketing.cz@alsglobal.com</strong></p></blockquote><p>We look forward to welcoming you to this important discussion on PFAS compliance in water.</p>

Invitation to the ALS Webinar PFAS in Water 2026: Achieving Compliance through Advanced Analytical Strategies

<p><span><strong>In HPLC and other chromatographic techniques, the quality of your analytical results depends heavily on the condition of the sample before it ever reaches the instrument. While vial caps may appear to be a small accessory, they play a critical role in maintaining sample integrity, preventing contamination, and minimizing evaporation.</strong></span></p><p><span>Whether you use crimp, screw, or snap caps, each closure type offers distinct advantages and limitations. Selecting the right option can improve sample protection, simplify laboratory operations, and help ensure consistent analytical performance. Let's take a closer look at the characteristics of each cap style and explore when each one is most appropriate.</span></p><h3><span><strong>Sealing Performance: Protecting Your Sample</strong></span></h3><p><span>The primary purpose of any vial cap is to create a reliable seal. However, different cap designs achieve this in different ways, resulting in varying levels of protection against evaporation, contamination, and sample degradation.</span></p><h5><span><strong>Crimp Caps</strong></span></h5><p><span>Crimp caps provide the highest level of sealing performance. A metal cap is mechanically crimped around the vial neck, creating a secure and highly airtight closure. This design minimizes sample loss and offers excellent protection during long-term storage.</span></p><ul><li><span><strong>Ideal applications: </strong>When volatile compounds must be preserved, or when even minor contamination and evaporation cannot be tolerated, such as headspace analysis and highly sensitive analytical methods.</span></li></ul><h5><span><strong>Screw Caps</strong></span></h5><p><span>Screw caps are widely used because they combine practicality with dependable sealing. Their threaded design allows them to be tightened easily while still providing sufficient protection for the majority of HPLC applications.</span></p><p><span>One of their biggest advantages is the ability to open and reseal the vial multiple times without requiring additional equipment.</span></p><ul><li><span><strong>Ideal applications: </strong>Routine laboratory analyses, methods requiring repeated sample access, and workflows where convenience is important.</span></li></ul><h5><span><strong>Snap Caps</strong></span></h5><p><span>Snap caps emphasize speed and ease of use. They are pressed onto the vial until they lock into position with a simple click.</span></p><p><span>Although they do not provide the same degree of airtight sealing as crimp or screw caps, they offer a fast and straightforward solution for many applications.</span></p><ul><li><span><strong>Ideal applications: </strong>Short-term sample storage, stable analytes, and high-throughput environments where rapid handling is a priority.</span></li></ul><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_Crimp_vs_Screw_Caps_04bdfdd4a5.jpg" alt="KNAUER: Crimp and Screw Caps" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_Crimp_vs_Screw_Caps_04bdfdd4a5.jpg 245w," sizes="100vw" width="1152" height="389"></p><h3><span><strong>Ease of Use: Supporting Laboratory Efficiency</strong></span></h3><p><span>In busy analytical laboratories, workflow efficiency matters. The choice of vial closure can significantly affect the amount of time spent preparing samples.</span></p><h5><span><strong>Crimp Caps</strong></span></h5><ul><li><span><strong>Advantages: </strong>Crimp caps deliver highly reproducible sealing when applied correctly. Automated crimping devices can further improve consistency while reducing operator-to-operator variability.</span></li><li><span><strong>Limitations: </strong>A crimping tool is required for installation. Manual crimping can be labor-intensive and may produce inconsistent results if the technique is not properly controlled. In addition, removing a crimp cap typically damages it, requiring replacement before the vial can be resealed.</span></li></ul><h5><span><strong>Screw Caps</strong></span></h5><ul><li><span><strong>Advantages: </strong>Screw caps are exceptionally user-friendly. They can be installed and removed without any specialized tools, making them convenient for workflows involving repeated sample access.</span></li><li><span><strong>Limitations: </strong>Seal quality depends on proper tightening. Excessive torque can damage the cap or septum, while insufficient tightening may compromise the seal. Repeated opening and closing can also gradually wear the cap components.</span></li></ul><h5><span><strong>Snap Caps</strong></span></h5><ul><li><span><strong>Advantages: </strong>Snap caps offer the fastest sealing process. Simply pressing the cap into position is sufficient, making them attractive for laboratories processing large numbers of samples.</span></li><li><span><strong>Limitations: </strong>Their convenience comes at the expense of sealing performance. They provide less protection against contamination and solvent loss, particularly when handling volatile compounds.</span></li></ul><h3><span><strong>Instrument Compatibility: Matching Caps to Your Workflow</strong></span></h3><p><span>Selecting a vial cap is not only about sealing efficiency. Compatibility with vials, autosamplers, and laboratory procedures is equally important.</span></p><h5><span><strong>Crimp Caps</strong></span></h5><ul><li><span><strong>Compatibility: </strong>Crimp caps are designed specifically for crimp-top vials and are commonly used in automated analytical systems. They work particularly well with glass vials and provide highly reliable sealing performance.</span></li><li><span><strong>Limitations: </strong>The need for a crimping device introduces an additional workflow step. Furthermore, improper crimping—whether too loose or too tight—can result in inconsistent sealing and potential sample integrity issues.</span></li></ul><h5><span><strong>Screw Caps</strong></span></h5><ul><li><span><strong>Compatibility: </strong>Screw caps are among the most versatile closure options available. They are compatible with many autosamplers and can be used with both glass and plastic vials.</span></li><li><span><strong>Limitations: </strong>Although suitable for most routine analyses, they may not provide the level of sealing required for extremely volatile compounds or demanding headspace applications.</span></li></ul><h5><span><strong>Snap Caps</strong></span></h5><ul><li><span><strong>Compatibility: </strong>Snap caps are intended for use with snap-ring vials. Many autosamplers that accommodate crimp or screw-top vials can also accept snap-ring formats, offering flexibility in certain laboratory environments.</span></li><li><span><strong>Limitations: </strong>Their relatively loose seal makes them less suitable for long-term storage or volatile analytes. Before implementation, laboratories should verify autosampler compatibility with snap-ring vial formats.</span></li></ul><h3><span><strong>How to Choose the Right Cap Type</strong></span></h3><p><span>The best closure depends on the specific requirements of your application.</span></p><h4><span><strong>Choose Crimp Caps When:</strong></span></h4><ul><li><span>Your samples contain highly volatile compounds.</span></li><li><span>Long-term storage is required.</span></li><li><span>Maximum sealing performance is essential.</span></li><li><span>You are performing headspace GC or highly sensitive LC-MS/MS analyses.</span></li></ul><h4><span><strong>Choose Screw Caps When:</strong></span></h4><ul><li><span>Samples need to be accessed repeatedly.</span></li><li><span>Convenience and flexibility are important.</span></li><li><span>Compatibility across multiple instruments and workflows is required.</span></li><li><span>Standard HPLC applications are being performed.</span></li></ul><h4><span><strong>Choose Snap Caps When:</strong></span></h4><ul><li><span>Samples are relatively stable and non-volatile.</span></li><li><span>Fast sample preparation is critical.</span></li><li><span>High-throughput operations demand rapid vial handling.</span></li><li><span>Short-term storage is sufficient.</span></li></ul><h3><span><strong>Final Thoughts</strong></span></h3><p><span>Although vial caps are often overlooked, they can have a significant impact on both sample quality and laboratory productivity.</span></p><p><span>To summarize:</span></p><ul><li><span><strong>Crimp Caps: </strong>Provide the most secure and airtight seal, making them ideal for volatile compounds, sensitive analyses, and long-term storage.</span></li><li><span><strong>Screw Caps: </strong>Offer an excellent balance between sealing performance and convenience, making them the preferred choice for many routine chromatographic applications.</span></li><li><span><strong>Snap Caps: </strong>Deliver maximum speed and simplicity, making them well suited for stable samples and fast-paced laboratory workflows.</span></li></ul><p><span>By understanding the strengths and limitations of each cap type, laboratories can select the most appropriate closure for their analytical requirements, ensuring sample integrity while maintaining an efficient workflow.</span></p><blockquote><p>If you want to protect your samples and improve your HPLC’s performance, check out our brand-new <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2381"><strong>KNAUER originals HPLC Vials</strong></a></p></blockquote>

Crimp vs. Screw Caps: Which is Better for Chromatography?

News from LabRulezLCMS Library - Week 24, 2026

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For more than 40 years, ALS has provided testing and technical solutions to clients all over the world in a wide range of industries. We have built our global reputation by embracing the latest technologies and innovative methodologies to deliver high quality testing services to clients. ALS is able to leverage a multifaceted international team while remaining agile enough to provide local expertise and personalized solutions to every one of our clients.

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Based in Berlin, KNAUER is a medium-sized, owner-managed company that has been serving the sciences since 1962. We develop and manufacture scientific instruments of superior quality for liquid chromatography, including: Analytical HPLC/UHPLC, Preparative HPLC, Fast protein liquid chromatography (FPLC), Multi-column chromatography/Simulated moving bed (SMB) chromatography. High pressure dosing, in-line detection systems, and osmometry are additional business areas.

KNAUER

KNAUER AZURA VWD 2.1L Variable Wavelength Detector

Flexible UV/VIS detector with up to four wavelengths, conductivity, temperature, and optional pH monitoring. Ideal for HPLC, FPLC, and purification applications.

<p><strong>The KNAUER AZURA® VWD 2.1L is a versatile variable wavelength detector designed for analytical HPLC, FPLC, and purification applications. Combining UV/VIS detection with optional conductivity, temperature, and pH monitoring, it provides exceptional flexibility for a wide range of chromatographic workflows.</strong></p><p>The detector supports simultaneous monitoring of up to four UV/VIS wavelengths across a broad spectral range from 190 to 900 nm. When equipped with KNAUER’s patented <strong>CombiLight flow cell</strong>, it can simultaneously measure UV absorbance, conductivity, and eluent temperature. An optional pH electrode further extends functionality by enabling real-time pH monitoring during chromatographic separations.</p><h3><strong>Key Features</strong></h3><ul><li>Variable wavelength UV/VIS detector <strong>for analytical HPLC and FPLC</strong></li><li>Simultaneous monitoring of <strong>up to 4 UV/VIS wavelengths</strong></li><li>Broad wavelength range from <strong>190 to 900 nm</strong></li><li>Optional conductivity monitoring up to <strong>1000 mS/cm</strong></li><li>Integrated temperature monitoring</li><li>Optional real-time pH measurement</li><li>Compatible with patented KNAUER CombiLight flow cell technology</li><li>Convertible between flow-cell and fiber-optic configurations</li><li>Internal holmium oxide filter for wavelength verification</li><li>Adjustable leak sensor for enhanced operational safety</li><li>Front-access lamp and flow-cell replacement</li><li>Comprehensive GLP functionality with component recognition</li><li>Suitable for analytical, preparative, and purification workflows</li></ul><h3><strong>Technical Specifications</strong></h3><h4><strong>Detection System</strong></h4><ul><li><strong>Detection channels:</strong><ul><li>4 × UV/VIS</li><li>1 × Conductivity</li><li>1 × Temperature</li><li>1 × pH</li></ul></li><li><strong>Wavelength range:</strong> 190–900 nm</li><li><strong>Light source:</strong><ul><li>High-brightness deuterium lamp</li><li>Halogen lamp</li><li>Integrated GLP chip</li></ul></li><li><strong>Flow cell:</strong> Not included</li><li><strong>Optional display:</strong> Mobile Control</li></ul><h4><strong>UV/VIS Performance</strong></h4><ul><li><strong>Spectral bandwidth:</strong> 6 nm (FWHM)</li><li><strong>Wavelength accuracy: </strong>±1.5 nm</li><li><strong>Wavelength precision:</strong> 0.4 nm</li><li><strong>Baseline noise: </strong>±7.5 µAU at 254 nm</li><li><strong>Baseline drift:</strong> 200 µAU/h at 254 nm</li><li><strong>Linearity: </strong>&gt;2.5 AU at 274 nm</li><li><strong>Maximum data rate:</strong><ul><li>100 Hz (single UV channel)</li><li>5 Hz (four UV channels)</li></ul></li></ul><h4><strong>Conductivity Monitoring</strong></h4><ul><li><strong>Measurement range: </strong>0.1–1000 mS/cm</li><li><strong>Accuracy:</strong> ±2% or ±0.5 mS/cm (whichever is greater)</li></ul><h4><strong>pH Monitoring</strong></h4><ul><li><strong>Measurement range: </strong>pH 0–14</li><li><strong>Accuracy: </strong>±0.1 pH (between pH 2–12)</li></ul><h4><strong>Temperature Monitoring</strong></h4><ul><li><strong>Measurement range</strong>: 1–99 °C</li><li><strong>Accuracy</strong>: ±1.5 °C (4–40 °C)</li></ul><h4><strong>System Functions</strong></h4><ul><li>Internal holmium oxide filter for wavelength verification</li><li>Adjustable leak sensor</li><li>Automatic integration time</li><li>User-selectable time constants:</li></ul><h4><strong>GLP Functions</strong></h4><ul><li>Lamp recognition</li><li>Operating hours tracking</li><li>Light source lifetime monitoring</li><li>Flow-cell recognition</li><li>Detailed GLP reporting</li></ul><h4><strong>Maintenance</strong></h4><ul><li>Front-accessible deuterium lamp</li><li>Front-accessible halogen lamp</li><li>Front-accessible flow cell</li><li>Simplified service procedures</li></ul><h3><strong>Applications</strong></h3><ul><li>Analytical HPLC</li><li>FPLC systems</li><li>Protein purification</li><li>Biopharmaceutical analysis</li><li>Process chromatography</li><li>Preparative chromatography</li><li>Method development</li><li>Quality control laboratories</li><li>UV/VIS monitoring of purification processes</li></ul>

KNAUER AZURA UVD 2.1L UV/VIS Detector

Compact and affordable UV/VIS detector for routine HPLC and fast LC applications, featuring 190–750 nm wavelength range and flexible flow-cell options.

<p><strong>The KNAUER AZURA® UVD 2.1L is a cost-effective UV/VIS detector designed for routine HPLC applications, including fast liquid chromatography methods. Combining reliable performance, compact dimensions, and flexible flow-cell options, it provides an ideal solution for analytical and preparative chromatography laboratories seeking dependable UV detection at an attractive price point.</strong></p><p>The detector utilizes a deuterium lamp covering the wavelength range <strong>from 190 to 750 nm</strong> and offers excellent sensitivity and stability for everyday chromatographic analysis. Its smart mechanical design allows quick and easy access to the flow cell, minimizing maintenance time and maximizing instrument uptime.</p><p>A wide range of interchangeable flow cells is available, including stainless-steel and bio-inert versions suitable for analytical, semi-preparative, and preparative LC applications with <strong>flow rates ranging from 10 μL/min up to 10 L/min</strong>. The detector integrates seamlessly into virtually any LC system through LAN communication, analog I/O, and compatibility with leading chromatography software packages.</p><h3><strong>Key Features</strong></h3><ul><li><strong>Cost-effective UV/VIS detector </strong>for routine HPLC applications</li><li>Suitable for fast LC methods</li><li>Wavelength range <strong>from 190 to 750 nm</strong></li><li>Single-channel variable wavelength detection</li><li><strong>Deuterium lamp </strong>with integrated GLP chip</li><li>Compact and robust instrument design</li><li>Easily accessible flow cell for rapid replacement</li><li>Wide selection of interchangeable flow cells</li><li>Compatible with analytical and preparative LC applications</li><li><strong>Flow rates from 10 μL/min up to 10 L/min</strong></li><li>Integrated leak sensor</li><li>Automatic integration time adjustment</li><li>LAN and analog communication interfaces</li><li>Comprehensive GLP functionality</li><li><strong>Compatible with ClarityChrom®, OpenLAB®, Chromeleon™, ChromGate®, PurityChrom®</strong>, and <strong>Mobile Control</strong></li></ul><h3><strong>Technical Specifications</strong></h3><h4><strong>Detection System</strong></h4><ul><li><strong>Detection channels:</strong> 1</li><li><strong>Light source: </strong>Deuterium (D₂) lamp with integrated GLP chip</li><li><strong>Wavelength range:</strong> 190–750 nm</li><li><strong>Spectral bandwidth: </strong>11 nm (FWHM)</li><li><strong>Wavelength accuracy:</strong> ±2.5 nm</li><li><strong>Wavelength precision:</strong> 0.3 nm</li></ul><h4><strong>Performance</strong></h4><ul><li><strong>Noise:</strong> ±15 µAU at 254 nm</li><li><strong>Drift: </strong>300 µAU/h at 254 nm</li><li><strong>Linearity:</strong> &gt;2.0 AU at 274 nm</li><li><strong>Maximum data rate:</strong><ul><li>50 Hz via LAN</li><li>20 Hz via analog output</li></ul></li></ul><h4><strong>Flow Cells</strong></h4><ul><li>Flow cells sold separately</li><li>Stainless-steel and bio-inert options available</li><li>Suitable for analytical and preparative chromatography</li><li>Flow rates from 10 μL/min to 10 L/min</li></ul><h4><strong>Communication and Control</strong></h4><ul><li>LAN communication</li><li>Analog input/output</li><li>Mobile Control software</li><li>Event control</li><li>Terminal protocol</li></ul><h4><strong>Inputs</strong></h4><ul><li>Error (IN)</li><li>Start (IN)</li><li>Autozero</li><li>0–10 V Analog (IN)</li></ul><h4><strong>Outputs</strong></h4><ul><li>Events 1–3</li><li>+5 V</li><li>24 V Valve</li></ul><h4><strong>Analog Output</strong></h4><ul><li>1 × 0–5 V scalable</li><li>20-bit resolution</li><li>Adjustable offset</li></ul><h4><strong>Programming Functions</strong></h4><ul><li>Timed wavelength programming</li><li>Event programming</li><li>Fraction valve control</li><li>Wake-up functions</li><li>Up to 9 programs</li><li>Up to 50 program lines</li></ul><h4><strong>GLP Functions</strong></h4><ul><li>Lamp recognition</li><li>Operating hours tracking</li><li>Lamp operating hours</li><li>Lamp ignition counter</li><li>Detailed GLP reports</li></ul><h4><strong>Safety and Maintenance</strong></h4><ul><li>Integrated leak sensor</li><li>Easy-access flow cell compartment</li><li>Front-access maintenance</li><li>Minimal downtime for service operations</li></ul><h4><strong>Environmental Conditions</strong></h4><ul><li><strong>Operating temperature:</strong> 4–40 °C</li><li><strong>Humidity:</strong> &lt;90% non-condensing</li></ul><h4><strong>Power and Dimensions</strong></h4><ul><li><strong>Power supply: </strong>100–240 V, 50–60 Hz</li><li><strong>Power consumption: </strong>65 W</li><li><strong>Dimensions (W × H × D):</strong> 361 × 158 × 523 mm</li><li><strong>Weight: </strong>5.9 kg</li></ul><h3><strong>Applications</strong></h3><ul><li>Routine HPLC analysis</li><li>Fast LC methods</li><li>Pharmaceutical quality control</li><li>Food and beverage analysis</li><li>Environmental testing</li><li>Chemical analysis</li><li>Preparative liquid chromatography</li><li>Academic and research laboratories</li></ul>

KNAUER AZURA UVD 2.1S UV Detector

Compact single-wavelength UV detector for routine HPLC applications with 190–500 nm range, flexible flow-cell options, and seamless software integration.

<p><strong>The KNAUER AZURA® UVD 2.1S is a compact, cost-effective single-wavelength UV detector designed for routine HPLC applications. Despite its small footprint, it delivers reliable performance and excellent technical specifications, making it one of the most compact HPLC UV detectors available on the market.</strong></p><p>Equipped with a deuterium lamp covering the <strong>wavelength range from 190 to 500 nm</strong>, the detector is suitable for a broad range of analytical chromatography applications. Its intelligent design provides quick access to the flow cell, enabling fast replacement and simplified maintenance. A wide selection of interchangeable flow cells is available, including bio-inert and stainless-steel versions for analytical and preparative LC applications with <strong>flow rates ranging from 10 μL/min up to 10 L/min</strong>.</p><h3><strong>Key Features</strong></h3><ul><li>Compact single-wavelength UV detector for HPLC</li><li>One of the smallest HPLC UV detectors available</li><li>Wavelength range <strong>from 190 to 500 nm</strong></li><li>Deuterium lamp with integrated GLP chip</li><li>Suitable for routine analytical applications</li><li>Compact AZURA® housing design</li><li>Easily accessible flow cell for rapid replacement</li><li>Wide range of interchangeable flow cells available</li><li>Compatible with analytical and preparative LC applications</li><li><strong>Flow rates from 10 μL/min up to 10 L/min</strong></li><li>Stand-alone operation via front panel</li><li><strong>LAN, RS-232</strong>, and analog communication interfaces</li><li>Compatible with major chromatography data systems</li><li>Available as a module for <strong>AZURA® ASM 2.2L</strong></li><li>Low maintenance requirements</li></ul><h3><strong>Technical Specifications</strong></h3><h4><strong>Detection System</strong></h4><ul><li><strong>Detection channels: </strong>1</li><li><strong>Light source:</strong> Deuterium (D₂) lamp with integrated GLP chip</li><li><strong>Wavelength range:</strong> 190–500 nm</li><li><strong>Spectral bandwidth: </strong>13 nm (FWHM)</li><li><strong>Wavelength accuracy: </strong>±3 nm</li><li><strong>Wavelength precision: </strong>0.7 nm</li></ul><h4><strong>Performance</strong></h4><ul><li><strong>Noise:</strong> ±20 µAU at 254 nm</li><li><strong>Drift:</strong> 300 µAU/h at 254 nm</li><li><strong>Linearity:</strong> &gt;2.0 AU at 274 nm</li><li><strong>Maximum data rate:</strong><ul><li>50 Hz via LAN</li><li>20 Hz via analog output</li><li>10 Hz via RS-232</li></ul></li></ul><h4><strong>Flow Cells</strong></h4><ul><li>Flow cells sold separately</li><li>Bio-inert and stainless-steel options available</li><li>Suitable for analytical and preparative chromatography</li><li>Flow rates from 10 μL/min to 10 L/min</li></ul><h4><strong>Communication and Control</strong></h4><ul><li>Front panel operation</li><li>Mobile Control software</li><li>Software control</li><li>Event control</li><li>Analog control</li><li>Terminal protocol</li></ul><h4><strong>Interfaces</strong></h4><ul><li>LAN (RJ-45)</li><li>RS-232 (SUB-D 9)</li><li>Multi-pin connector</li><li>Analog interface (RCA connector)</li></ul><h4><strong>Inputs</strong></h4><ul><li>Autozero</li><li>Start (IN)</li><li>Error (IN/OUT)</li><li>0–10 V Analog Input</li></ul><h4><strong>Outputs</strong></h4><ul><li>Error (OUT/IN)</li></ul><h4><strong>Analog Signals</strong></h4><ul><li>Analog wavelength input: 0–10 V</li><li>Analog output: 1 × ±2.5 V scalable</li><li>Resolution: 20-bit</li></ul><h4><strong>GLP Functions</strong></h4><ul><li>Lamp operating hours monitoring</li></ul><h4><strong>Display</strong></h4><ul><li>LED display</li></ul><h4><strong>Environmental Conditions</strong></h4><ul><li><strong>Operating temperature:</strong> 4–40 °C</li><li><strong>Humidity</strong>: &lt;90% non-condensing</li></ul><h4><strong>Power and Dimensions</strong></h4><ul><li><strong>Power supply:</strong><ul><li>Input: 100–240 V</li><li>Output: 24 V DC</li></ul></li><li><strong>Power consumption: </strong>60 W</li><li><strong>Dimensions (W × H × D):</strong> 121 × 129 × 187 mm</li><li><strong>Weight: </strong>1.5 kg</li></ul><h3><strong>Applications</strong></h3><ul><li>Routine HPLC analysis</li><li>Quality control laboratories</li><li>Pharmaceutical analysis</li><li>Food and beverage testing</li><li>Environmental analysis</li><li>Academic research</li><li>Preparative liquid chromatography</li><li>Compact and space-limited laboratory environments</li></ul>

Products from category UV-Vis HPLC detectors focused on HPLC distributed by KNAUER - page 1

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Invitation to the ALS Webinar PFAS in Water 2026: Achieving Compliance through Advanced Analytical Strategies

News from LabRulezLCMS Library - Week 24, 2026

Crimp vs. Screw Caps: Which is Better for Chromatography?