Electron spectroscopy for chemical analysis of liquids

<p><strong>In the week from June 29, the following webinars await you in the field of atomic and molecular spectroscopy and spectrometry</strong></p><blockquote><h4><a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/webinars"><strong>👉 DETAILS AND REGISTRATION IN THE WEBINARS SECTION</strong></a></h4><p><strong>👉 Search and filter in the largest global database</strong> with over <strong>5 500 GC, LC, MS and spectroscopy webinars</strong>.</p></blockquote><h5><strong>1. Metrohm: Simplifying Through-Container Testing with Raman Spectroscopy in the Pharmaceutical Industry</strong></h5><ul><li>Mo, 29.6.2026 15:00 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/webinar/6308">Registration</a></li></ul><p>In this webinar, we will demonstrate a more robust and practical alternative to SORS for see-through Raman analysis.</p><h5><strong>2. SelectScience: End-to-end PAT: Connecting advanced analytics and data across the bioprocess lifecycle</strong></h5><ul><li>Mo, 29.6.2026 16:00 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/webinar/6307">Registration</a></li></ul><p>Learn how integrated PAT strategies combining NMR, Raman, IR, and digital workflows enable continuous process understanding, smoother tech transfer, and QbD from development to GMP manufacturing.</p><h5><strong>3. Bruker: Bruker Fluorescence Microscopy Solutions: Automated Imaging and Light-Sheet Microscopy</strong></h5><ul><li>Tu, 30.6.2026 17:00 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/webinar/6309">Registration</a></li></ul><p>Discover Bruker’s integrated imaging ecosystem combining light-sheet microscopy, high-content screening, and high-performance data management for scalable, high-quality biological imaging workflows.</p><h5><strong>4. Agilent Technologies: Measuring Diverse Samples with UV/VIS Spectrometers and Integrating Spheres</strong></h5><ul><li>Tu, 30.6.2026 20:30 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/webinar/6052">Registration</a></li></ul><p>This webinar will discuss diffuse transmission and reflection UV/VIS measurements, including how to perform measurements with Agilent’s Cary 60 UV/VIS Spectrometer.</p><h5><strong>5. Milestone: Unlock Smarter Digestion: AI and the Smart Features that Transform Your Daily Routine</strong></h5><ul><li>We, 1.7.2026 16:00 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/webinar/6312">Registration</a></li></ul><p>Learn how Milestone’s intelligent digestion technologies, including MAIA AI Agent, easyTEMP, and SRC, help reduce downtime, simplify workflows, and improve laboratory productivity.</p><h5><strong>6. Bruker: High-Energy XRD - Diffraction Without Limits</strong></h5><ul><li>Th, 2.7.2026 10:00 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/webinar/6314">Registration</a></li></ul><p>Join us to explore how high-energy XRD with the D8 ADVANCE HE and D8 DISCOVER HE enables the study of materials under realistic conditions.</p><h5><strong>7. Agilent Technologies: Spectral Flow Cytometry Masterclass - Session 1</strong></h5><ul><li>Fr, 3.7.2026 07:00 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/webinar/6316">Registration</a></li></ul><p>Learn how full-spectrum flow cytometry enables high-dimensional cell analysis. Explore spectral flow technology, experimental design, and applications in immunology, oncology, and vaccine research.</p>

Webinars LabRulezICPMS Week 27/2026

<p><strong>The international standard ISO/IEC 17025 [1] clause 7.7.2 with regards to ensuring the validity of results, requires a laboratory to participate in proficiency testing (PT) and/or to participate in interlaboratory comparisons (ILCs) other than PT. However, no guidance as to what these other ILCs might be, or indeed how they might compare in relation to PT, is provided. This leaflet aims to outline other ILCs available, pointing out some of the limitations as compared to PT.&nbsp;</strong></p><p>There are three major types of ILCs in which a group of laboratories analyses identical portions from a homogeneous, stable test sample, with each type being characterized by its intended purpose [2,3]:</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Eurachem_Interlaboratory_comparisons_other_than_proficiency_testing_2_d9263807fb.jpg" alt="Eurachem: Interlaboratory comparisons other than proficiency testing" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Eurachem_Interlaboratory_comparisons_other_than_proficiency_testing_2_d9263807fb.jpg 245w," sizes="100vw" width="1507" height="607"></p><p>A key point is that PT is an ILC that is designed to specifically evaluate the performance of participants, providing them with an infrastructure to monitor and assess the validity of their results. This is not the key purpose of the two other ILCs, and thus depending on their intended purpose they have a number of limitations that laboratories need to be aware of when using them rather than PT. Only proficiency testing should have been conducted in full compliance to the competency standard ISO/IEC 17043 [4].&nbsp;</p><h4><strong>Evaluation of measurement procedure performance&nbsp;</strong></h4><p>These ILCs, are designed to assess how a particular measurement procedure performs and whether it is fit for its intended purpose. These ILCs are often referred to as a ‘method performance study’ or a ‘collaborative study’ [2]. Some limitations of using such ILCs for monitoring laboratory performance as an alternative to PT are:&nbsp;</p><ul><li>All participants use the same measurement procedure i.e. the measurement procedure that is being validated. Unless the measurement procedure is being routinely used by the participating laboratory such an ILC will not assess the routine performance of the laboratory using their own routine measurement procedure. Nor does it enable them to compare their performance with other laboratories using alternative measurement procedures.&nbsp;</li><li>The measurement procedure is likely to be new, so participants may not have established stable procedures and quality control, so performance may not reflect routine use.&nbsp;</li><li>The report from such an ILC would not provide information on the performance of the participant, if the statistical model used makes the assumption that all laboratories perform with equal variability.</li><li>The design of the study may require the participants to assess multiple samples and/or to undertake multiple replicate analysis on the test materials. This may not be representative of the routine measurements or tests undertaken by the laboratory.&nbsp;</li><li>The conclusion of the ILC might be that the measurement procedure being assessed is not valid.&nbsp;</li></ul><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Eurachem_Interlaboratory_comparisons_other_than_proficiency_testing_3_a53ecd2f5d.jpg" alt="Eurachem: Interlaboratory comparisons other than proficiency testing" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Eurachem_Interlaboratory_comparisons_other_than_proficiency_testing_3_a53ecd2f5d.jpg 157w," sizes="100vw" width="570" height="566"></p><h4><strong>Characterisation of candidate reference materials&nbsp;</strong></h4><p>These are ILCs that assign a property value to a candidate reference material, usually with a stated measurement uncertainty. These are often referred to as a ‘material certification study’ [2]. Limitations of using such ILCs as an alternative to PT are:&nbsp;</p><ul><li>The analysis of the candidate reference material is likely to require additional care in exercising the routine measurement procedure, such as substantially more replication, and/or may require quite different reporting formats (e.g. all valid replicates instead of a mean result). Thus, such an ILC will not necessarily provide an evaluation of the performance of the laboratory based on the routine use of their measurement procedures.&nbsp;</li><li>The report from such an ILC may include the results from the participating laboratories but would not provide information on the performance of each laboratory.&nbsp;</li><li>Participating laboratories may be required to assess multiple samples and/or to undertake multiple replicate analysis on the candidate reference materials. Thus this may not be representative of the routine measurements or tests undertaken by the laboratory.&nbsp;</li></ul><h4><strong>Other ILCs&nbsp;</strong></h4><p>Some other ILCs, whilst not being conducted in full compliance of the requirements of ISO/IEC 17043, may be designed to evaluate participant performance. These would include small ILCs as defined by EA‑2/21 [5] or split sample ILCs i.e. where a portion of a single sample is sent to two or three laboratories. Whilst these ILCs are specifically designed to evaluate participant performance, they may not provide a comprehensive comparison that a PT might provide. In such cases the laboratory needs to evaluate carefully the competence of the organization managing the ILC and the suitability of the service externally provided (ISO/IEC 17025 clause 6.6).</p>

Interlaboratory comparisons other than proficiency testing

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Eurachem is a European network promoting international traceability of chemical measurements and good analytical practice. It provides expert guidance, supports method validation, uncertainty evaluation, proficiency testing, and facilitates discussion on technical and policy issues in analytical quality.

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Linde REDLINE Pressure Regulators C 200/1 & C 200/2

REDLINE C 200 pressure regulators provide precise and stable gas control up to 6.0 purity, ideal for laboratory, analytical, and research applications.

<p><strong>The REDLINE C 200 series pressure regulators (models C 200/1 single-stage and C 200/2 dual-stage) are designed for precise control of non-corrosive gases with purity levels up to 6.0 (99.9999%), as well as gas mixtures containing low concentrations of corrosive components.</strong></p><p>These regulators ensure excellent pressure stability, high accuracy, and preservation of gas purity, making them ideal for demanding laboratory, analytical, and research applications.</p><p>The C 200/1 single-stage version is suitable for applications with stable inlet pressure, such as gases supplied in liquid phase. The C 200/2 dual-stage version is specifically designed for systems where inlet pressure fluctuates, ensuring highly stable outlet pressure even under changing conditions.</p><h4><span><strong>Key Features</strong></span></h4><ul><li>High precision pressure regulation for analytical applications</li><li>Suitable for high-purity gases up to grade 6.0 (99.9999%)</li><li>Excellent outlet pressure stability (especially dual-stage version)</li><li>Designed to maintain gas purity and minimize contamination</li><li>Wide range of configurable outlet pressure ranges</li><li>Flexible configuration with multiple valve and purging options</li><li>Robust and reliable design for laboratory and R&amp;D environments</li></ul><h4><span><strong>Technical Specifications</strong></span></h4><ul><li><strong>Inlet pressure:</strong> up to 230 bar</li><li><strong>Outlet pressure ranges:</strong><ul><li><i>C 200/1 (single-stage):</i> 3 / 6 / 10 / 14 / 16 / 28 / 35 / 50 / 100 / 200 bar</li><li><i>C 200/2 (dual-stage):</i> 1 / 3 / 6 / 10 / 14 bar</li></ul></li><li><strong>Gas compatibility:</strong><ul><li>Non-corrosive gases up to purity 6.0</li><li>Gas mixtures with low corrosive content</li></ul></li><li><strong>Inlet connections:</strong><ul><li>According to DIN 477 and gas specification</li></ul></li><li><strong>Outlet connections:</strong><ul><li>Compression fittings</li><li>Hose nozzles</li></ul></li></ul><h4><span><strong>Available Configurations</strong></span></h4><h5><span><strong>Models</strong></span></h5><ul><li><strong>C 200/1 (Single-stage)</strong><br>Designed for applications with stable inlet pressure</li><li><strong>C 200/2 (Dual-stage)</strong><br>Designed for fluctuating inlet pressure with maximum outlet stability</li></ul><h4><span><strong>Optional Equipment</strong></span></h4><ul><li>Shut-off valve (Type A)</li><li>Needle valve (Type B)</li><li>High-pressure side purge (Type P)</li><li>Inert/external gas purge (Type TP)</li><li>Purge manifold (Type EP)</li><li>Post-purge (Type DP – available only for C 200/2)</li></ul><h4><span><strong>Applications</strong></span></h4><ul><li>Laboratory gas supply systems</li><li>Analytical instrumentation (e.g., GC, LC, MS workflows)</li><li>Research and development environments</li><li>High-purity gas distribution systems</li><li>Any application requiring stable pressure and contamination-free gas delivery</li></ul>

Linde REDLINE Pressure Regulators C 300/1 & C 300/2

REDLINE C 300 pressure regulators provide precise and stable gas control up to 6.0 purity, ensuring reliability for laboratory, analytical, and research applications.

<p><strong>The REDLINE C 300 series pressure regulators (models C 300/1 single-stage and C 300/2 dual-stage) are designed for precise control of non-corrosive gases with purity levels up to 6.0 (99.9999%), as well as gas mixtures containing low concentrations of corrosive components.</strong></p><p>Thanks to their robust design and high-quality manufacturing, these regulators provide excellent pressure stability, accuracy, and long-term reliability. They are particularly well suited for demanding laboratory, analytical, and research applications where maintaining gas purity and consistent pressure is critical.</p><p>The C 300/1 single-stage regulator is recommended for applications with relatively stable inlet pressure, such as gases supplied in liquid phase. The C 300/2 dual-stage version is intended for systems with fluctuating inlet pressure, ensuring highly stable outlet pressure and improved control under varying operating conditions.</p><h4><span><strong>Key Features</strong></span></h4><ul><li>Precise and stable pressure regulation for analytical workflows</li><li>Compatible with high-purity gases up to grade 6.0 (99.9999%)</li><li>Dual-stage version provides superior outlet pressure stability</li><li>Designed to maintain gas purity and minimize contamination risks</li><li>Wide range of adjustable outlet pressure settings</li><li>Modular design with multiple optional valve and purge configurations</li><li>High reliability for continuous laboratory and R&amp;D operation</li></ul><h4><span><strong>Technical Specifications</strong></span></h4><ul><li><strong>Inlet pressure:</strong> up to 300 bar</li><li><strong>Outlet pressure ranges:</strong><ul><li><i>C 300/1 (single-stage):</i> 3 / 6 / 10 / 14 / 16 / 28 / 35 / 50 / 100 / 200 bar</li><li><i>C 300/2 (dual-stage):</i> 1 / 3 / 6 / 10 / 14 bar</li></ul></li><li><strong>Gas compatibility:</strong><ul><li>Non-corrosive gases up to purity 6.0</li><li>Gas mixtures with low corrosive content</li></ul></li><li><strong>Inlet connections:</strong><ul><li>According to DIN 477 and gas specification</li></ul></li><li><strong>Outlet connections:</strong><ul><li>Compression fittings</li><li>Hose nozzles</li></ul></li></ul><h4><span><strong>Available Configurations</strong></span></h4><h5><span><strong>Models</strong></span></h5><ul><li><strong>C 300/1 (Single-stage)</strong><br>Designed for applications with stable inlet pressure</li><li><strong>C 300/2 (Dual-stage)</strong><br>Designed for fluctuating inlet pressure with maximum outlet pressure stability</li></ul><h4><span><strong>Optional Equipment</strong></span></h4><ul><li>Shut-off valve (Type A)</li><li>Needle valve (Type B)</li><li>High-pressure side purge (Type P)</li><li>Inert gas purge (Type TP)</li><li>Purge manifold (Type EP)</li><li>Post-purge (Type DP – available only for C 300/2)</li></ul><h4><span><strong>Applications</strong></span></h4><ul><li>Analytical instrumentation (e.g., GC, LC, MS systems)</li><li>Laboratory gas supply systems</li><li>Research and development environments</li><li>High-purity gas distribution systems</li><li>Applications requiring precise pressure control and contamination-free gas delivery</li></ul>

Linde Hydrogen 3.0 – Gas Cylinder

Linde hydrogen 3.0 for industrial applications. High thermal conductivity, clean combustion, and reliable performance for welding, cutting, and energy use.

<p><strong>Hydrogen 3.0 from </strong><span><strong>Linde</strong></span><strong> is a technical-grade gas designed for a wide range of industrial applications, particularly in welding, cutting, and energy processes. Its exceptionally high thermal conductivity and excellent thermophysical properties make it highly effective for heat transfer and combustion applications.</strong></p><p>Hydrogen is a colorless, odorless, and tasteless gas that burns with an invisible flame. When combined with oxygen, it reaches very high flame temperatures. Its combustion produces no carbon or soot, ensuring clean processes without contamination.</p><p>The gas is supplied in pressurized cylinders, enabling safe storage and convenient handling in industrial environments.</p><h4><span><strong>Key Features</strong></span></h4><ul><li>High thermal conductivity</li><li>Clean combustion without carbon or soot</li><li>Colorless, odorless, and tasteless</li><li>Efficient heat transfer properties</li><li>Suitable for industrial and energy applications</li><li>Supplied in pressurized cylinders</li></ul><h4><span><strong>Technical Specifications</strong></span></h4><ul><li><strong>Gas:</strong> Hydrogen (H₂)</li><li><strong>Purity:</strong> 3.0 (≥ 99.9%)</li><li><strong>Supply form:</strong> pressurized steel cylinder (50 l, 200 bar)</li><li><strong>Flammability:</strong> highly flammable gas</li><li><strong>Flame:</strong> invisible, up to approx. 2,834 °C with oxygen</li><li><strong>Properties:</strong> colorless, odorless, tasteless</li></ul><h4><span><strong>Applications</strong></span></h4><ul><li>Shielding gas mixtures for TIG and plasma welding</li><li>Welding of stainless steels and nickel alloys</li><li>Plasma cutting of stainless steel and aluminum</li><li>Underwater cutting (in mixture with oxygen)</li><li>Energy generation applications</li><li>Glass industry (glass melting processes)</li></ul>

Linde Hydrogen 4.0 – Gas Cylinder

Linde hydrogen 4.0 (≥99.99%) for analytical and industrial use. High purity and stable performance for GC, welding, and energy applications.

<p><strong>Hydrogen 4.0 from </strong><span><strong>Linde</strong></span><strong> is a high-purity gas (≥ 99.99%) suitable for a wide range of analytical and industrial applications. Its excellent thermophysical properties make it highly effective for combustion, heat transfer, and analytical processes.</strong></p><p>Hydrogen is a colorless, odorless, and tasteless gas that burns with an invisible flame. When combined with oxygen, it produces very high flame temperatures. Its clean combustion produces no carbon or soot, ensuring contamination-free processes.</p><p>Compared to technical-grade hydrogen (3.0), hydrogen 4.0 offers higher purity, making it suitable for more demanding applications, including gas chromatography and laboratory analyses. It is supplied in pressurized cylinders for safe and convenient use.</p><h4><span><strong>Key Features</strong></span></h4><ul><li>High purity ≥ 99.99%</li><li>Excellent thermophysical properties</li><li>Clean combustion without carbon or soot</li><li>Colorless, odorless, and tasteless</li><li>Suitable for analytical and industrial applications</li><li>Supplied in pressurized gas cylinders</li></ul><h4><span><strong>Technical Specifications</strong></span></h4><ul><li><strong>Gas:</strong> Hydrogen (H₂)</li><li><strong>Purity:</strong> ≥ 99.99% (4.0)</li><li><strong>Supply form:</strong> pressurized steel cylinder</li><li><strong>Flammability:</strong> highly flammable gas</li><li><strong>Flame:</strong> invisible, up to approx. 2,834 °C with oxygen</li><li><strong>Properties:</strong> colorless, odorless, tasteless</li></ul><h4><span><strong>Applications</strong></span></h4><ul><li>Oxy-fuel welding of noble and non-ferrous metals</li><li>Quartz and glass processing</li><li>Reducing agent in chemistry and metallurgy</li><li>Generator cooling</li><li>Gas chromatography (carrier gas)</li><li>Flame ionization detectors (FID)</li><li>Food industry applications</li><li>Alternative fuel</li></ul>

Linde Hydrogen 5.0 – Gas Cylinder

Linde hydrogen 5.0 (≥99.999%) for GC and high-end applications. Maximum purity and stable performance for analytical and industrial use.

<p><strong>Hydrogen 5.0 from </strong><span><strong>Linde</strong></span><strong> is an ultra-high purity gas (≥ 99.999%) designed for the most demanding analytical and laboratory applications, as well as selected industrial processes. Its extremely low impurity levels make it ideal for gas chromatography and other techniques sensitive to gas quality.</strong></p><p>Hydrogen offers outstanding thermophysical properties, ensuring efficient heat transfer and high combustion efficiency. It burns with an invisible flame and produces no carbon or soot, enabling clean, contamination-free processes.</p><p>Due to its exceptional purity, hydrogen 5.0 is the preferred choice for laboratory analysis, calibration, and applications requiring maximum reproducibility. It is supplied in pressurized cylinders for safe and flexible use.</p><h4><span><strong>Key Features</strong></span></h4><ul><li>Ultra-high purity ≥ 99.999%</li><li>Minimal impurities for analytical applications</li><li>Excellent thermophysical properties</li><li>Clean combustion without carbon or soot</li><li>Colorless, odorless, and tasteless</li><li>Ideal for GC, FID, and sensitive analytical workflows</li></ul><h4><span><strong>Technical Specifications</strong></span></h4><ul><li><strong>Gas:</strong> Hydrogen (H₂)</li><li><strong>Purity:</strong> ≥ 99.999% (5.0)</li><li><strong>Supply form:</strong> pressurized steel cylinder</li><li><strong>Flammability:</strong> highly flammable gas</li><li><strong>Flame:</strong> invisible, up to approx. 2,834 °C with oxygen</li><li><strong>Properties:</strong> colorless, odorless, tasteless</li></ul><h4><span><strong>Applications</strong></span></h4><ul><li>Gas chromatography (carrier gas)</li><li>Flame ionization detectors (FID)</li><li>Analytical instruments and calibration</li><li>Oxy-fuel welding and metal processing</li><li>Quartz glass processing</li><li>Chemical and metallurgical applications (reducing agent)</li><li>Reactor cooling</li><li>Glass fiber production</li><li>Meteorology (balloon gas)</li><li>Alternative fuel</li></ul>

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Interlaboratory comparisons other than proficiency testing

Webinars LabRulezICPMS Week 27/2026

Electron spectroscopy for chemical analysis of liquids