20 Environmental Laboratory Clarify your samples for analysis


Gilson SupaTop™ Syringe Filters are a reliable and cost-effective solution for the removal of particles and clarifi cation needs. For sample volumes up to 100 mL, Gilson SupaTop™ Syringe Filters provide a quick, convenient, and reliable method of clarifying liquids intended for further analysis such as the clarifi cation of samples prior to HPLC injection to combat particulate clogging of columns.


Avoid fi lter blowout and lost samples due to high burst strength and durable construction. Maintain precious sample integrity with pigment-free, sealant-free housing. Minimise interference under the most sensitive analytical conditions, with limited release of UV-absorbing materials. Save time and avoid costly errors by selecting the correctly colour-coded syringe fi lter, every time. Select a fi lter matched to your needs, whatever your application.


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New technology expands applicability of headspace and SPME analyses for food


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and environmental samples Markes International has announced that it has entered into an agreement with ExtraTECH Analytical Solutions to globally sell ExtraTECH’s newly developed and patented vacuum-assisted caps for headspace microextraction. The caps ingeniously extend the applicability of headspace, SPME and SPME Arrow sample extractions by allowing analytes to be extracted under vacuum conditions with milder heating and agitation than is required using current non-vacuum methods. This avoids the risk of sample degradation and therefore produces a more representative sample profi le with much higher extraction sensitivities – an obvious benefi t to all analyses.


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Furthermore, extraction times are typically reduced by half when extraction by vacuum is used, because it lowers the initial pressure in the vial, thus greatly reducing the gas- sample phase resistance, resulting in a much faster transfer of mass analytes to the headspace. Naturally, this translates into signifi cant productivity gains for laboratories – especially those which are high throughput, as is the case within food and environmental sectors, for example.


Rachael Szafnauer, product marketing manager of Markes’ sample extraction product lines, said: “The caps unlock the full potential of headspace sampling, allowing fast extraction under mild conditions, and they’re completely re-usable too. All labs need to do is wash and recondition them. So, they reduce waste, time and energy costs. “We’re very excited about how the caps enable analysts to benefi t from enhanced extraction capabilities. ExtraTECH’s technology is a great fi t with the Markes’ sampling technologies and its Centri instrument portfolio and we’re looking forward to working closely with our customers, helping them to adopt this breakthrough technology.”


ExtraTECH’s founder, Elia Psillakis commented: “Our long- standing collaboration with Markes has been driven by our shared passion, determination and commitment to innovation. Now we have brought vacuum-assisted extraction technology to market, I am convinced that our products and methods will benefi t laboratories worldwide.”


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New book provides invaluable guidance for beginners and experienced analytical chemists of ICP-MS and other AS techniques


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A new book entitled “Practical Guide to ICP-MS and Other AS Techniques: A Tutorial for Beginners”, by Robert Thomas has just been published by CRC Press/ Routledge/Taylor & Francis. Robert Thomas is globally renowned as one of the pioneering practitioners of ICP-MS, and his latest book presents ICP-MS in a refreshingly novel way, providing trace element analysis users an invaluable insight into why the technique was originally developed and the manner in which the application landscape has defi ned its use today, 4 decades after it was fi rst commercialised in 1983.


This latest edition includes updated chapters on the fundamental principles and applications of ICP-MS, as well as chapters on complimentary AS techniques such as AA, AF, ICP-OES, MIP-AES, XRF, XRD, LIBS, LALI-TOFMS. Other important topics include ways to minimise errors and contamination with plasma spectrochemical techniques, a comparison of collision and reaction cells including triple/multi-quad systems, the latest sample digestion procedures and alternative sample introduction accessories.


The book provides extremely helpful tips and advice not only for novices but also for experienced analytical scientists wanting to learn more about the latest ICP-MS developments, and where the technique might be heading in the future. Moreover, it passes on much needed guidance on how best to evaluate commercial AS instrumentation and choosing the optimal technique, based on your laboratory’s own application demands.


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email: 61167pr@reply-direct.com IET NOVEMBER / DECEMBER 2023 For More Info, email: 60848pr@reply-direct.com 61031pr@reply-direct.com Minimise maintenance time with fi nger-tight GC fi ttings


If you’re tired of spending excessive time on column installation and maintenance, look no further. Finger-tight fi ttings offer a quicker and easier alternative to traditional fi ttings, ensuring leak-tight connections with minimal effort.


In addition, Restek’s fi nger-tight Hot Swap column nuts rapidly dissipate heat, allowing you to change columns while the injector remains hot, without the risk of burns or the need to wait for the instrument to cool down. Pair your Hot Swap fi ttings with fi nger-tight capillary gauges to maintain consistent insertion distances, reducing variability and enhancing chromatographic performance.


Restek’s fi nger-tight fi ttings are now compatible with Agilent, PerkinElmer, Shimadzu, and Thermo GCs, simplifying operations and orders across all your instruments. Make the switch today to boost sample throughput and elevate lab productivity.


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Continuous assessment of HPLC pump performance email:


The Liquid Chromatography Flowmeter (LCF) from Testa Analytical is a real-time monitoring device for continuously measuring the performance of pumps serving HPLC and uHPLC systems. Traditionally the quality of analytical data from HPLC systems has been determined by periodic checks of a set of measured parameters. This unfortunately just gives you a snapshot of how your HPLC system is performing at a point in time and cannot assure the total quality of an application. Flow rate is one of the most important parameters in any HPLC system, it determines retention time or volume and therefore has a major infl uence on reproducibility. By monitoring the liquid fl ow being delivered to your HPLC system in real-time, the Testa Analytical LCF generates a constant stream of data which is easily correlated to a particular chromatogram, thus achieving true total quality assurance of your application.


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Take a look at our website www.envirotech-online.com


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