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Environmental Laboratory New columns for reliability


Introducing the Thermo Scientifi c™ Dionex™ IonPac™ AS32-Fast-4µm column Analytical and Guard Columns for the analysis of polarised hydrophobic anions, polysulphonated aromatics, polythionates, aromatic dyes, pigments, persulfate, and perchlorate in complex sample matrices. The column is able to: resolve trace amounts of perchlorate in matrices containing high levels of chloride and sulphate within ten minutes using simple, isocratic conditions; produce more effi cient peaks, result- ing in more accurate integration and more reliable results in comparison with similar anion-exchange columns packed with 7-9µm resin particles This column operates at over 3000 psi and will require a Thermo Scientifi c™ Dionex™ Integrion™, ICS- 5000+ or ICS-6000 HPIC™ system. The new Thermo Scientifi c™ Accucore™ Biphenyl LC Column provides a robust and reliable separation of isomeric compounds by pharmaceutical, clinical research and forensic laboratories, such as drugs of


abuse and steroid isomers.


The column is designed to: avoid the challenges of unresolved peaks, long run times and insuffi cient lot-to-lot consistency traditionally introduced by C18 columns; support the optimisation of critical parameters such as retention time stability and peak asymmetry; offer improved column life and compatibility with 100% aqueous conditions for the fast and sensitive separation of aromatic and moderate- ly polar analytes from a variety of sample matrices


More information online: ilmt.co/PL/p3zL and ilmt.co/PL/xLJ6 49753pr@reply-direct.com


New carbon/sulphur analyser for both


organic and inorganic sample measurements When using conventional elemental analysers for carbon and sulphur determination in solids, the user must decide whether touse a resistance furnace to analyse organic compounds or an induction furnace for inorganic compounds.


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Not with Eltra’s unique analyser, the ELEMENTRAC CS-d which combines both techniques. Unique Dual Furnace Technology allows for analysis of both organic and inorganic samples. Thus, the user needs only one analyser to examine organic as well as inorganic matrices for their carbon and sulphur content directly without cumbersome sample preparation. The analysis time of the ELEMENTRAC CS-d is impressively short: analysis of steel, for example, only takes about 40 seconds; for coal it is about 90 seconds.


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Carbon and sulphur are measured simultaneously from low ppm levels to high percentages with an accurate infrared detection system. Up to four measuring cells can be customised according to the user’s requirements. Dual infrared detectors for C and S allow reliable detection of both parameters from ppm levels to high percentages.The instrument features a robust design for use in production and lab. An automated sample feeding options is available. The easy-to-use ELEMENTS software offers comprehensive diagnosis and results.


More information online: ilmt.co/PL/eRdw


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49986pr@reply-direct.com No frills HPLC autosampler


delivers what you truly need IF your HPLC routine calling for automation, look no further than the HT1500L: an autosampler specifi cally designed for HPLC, fully equipped with all the powerful features any HPLC technician would naturally choose.


HT15000L is the new HPLC autosampler from HTA that offers the best balance of quality and affordability and that is perfectly compatible with any HPLC system.


Unlike LC-MS, nanoLC and UHPLC systems, the HPLC requires few, essential features: excellent analytical performance, good sample capacity, and of course, uncompromised reliability, robustness and durability. HTA has showered the HT1500L with all these essential features, while eliminating anything unnecessary to keep costs as a minimum.


No frills but even no compromise. Despite the competitive price, HT1500L has a strong commitment to quality: the materials have been picked up to provide longevity; the up-to-date technologies offer reliability that deserve a modern instrument while the design attests our care in details.


HT1500L holds multiple racks, each of them removable, to allow continuous sample feeding and more convenient operations. The on-board solvent reservoir allows the needle and the whole fl owpath cleaning before processing the next sample.


HT1500L comes with HTA Autosampler Manager, HTA complementary software for autosampler programming. After setting the method once, the operator just needs to load samples and presses START: all the samples in the racks will be automatically processed. Seamless integration can also be experienced with the currently used Chromatography Data System.


HT1500L can actually become your workhorse, extremely reliable and straight to the point.


More information online: ilmt.co/PL/rkR3 44352pr@reply-direct.com


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When contacting companies directly from this issue of International Environmental Technology please tell them where you saw their product.


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New Technology Sheds Light


on Salmonella and Listeria Nemis Technologies Ltd is excited to announce the recent publication of its research work on the innovative, ultra-sensitive chemiluminescence-based technology for the detection of Salmonella and Listeria monocytogenes has been published in the prestigious journal Angewandte Chemie. In the journal, a team of scientists from Tel Aviv University (Professor Doron Shabat), The Zürich University of Applied Sciences (Professor Lars Fieseler), Nemis Technologies AG and Biosynth AG have introduced a new, ultrasensitive, chemiluminescence-based method for the direct detection of Salmonella and Listeria monocytogenes. The study is titled ’Ultrasensitive Detection of Salmonella and Listeria monocytogenes by Small-molecule Chemiluminescence Probes’.


The method is based on chemiluminescence, the emission of light resulting from a chemical process. The simplicity of the tests allows for both enrichment of the bacteria and their detection in a test tube, with no further sample preparation and therefore, no containment laboratory is required. The chemiluminescence probes have proven to be about 600 times more sensitive than conventional fl uorescence probes. The success of this technique is due to specially developed molecular probes combining a luminescent substance (a phenoxy-dioxetane) with a ‘trigger’. In this form the probe does not light up. The trigger is tailored to the bacteria to be detected; it is recognised by a specifi c enzyme produced by the pathogen - a special esterase in the case of salmonella and a special phospholipase C for listeria - that splits it from the luminescent part.


This enzyme initiates a chemical reaction that causes the luminescent molecule to split and emit a very intense green light. Tests with various bacteria demonstrated that the probe tailored to the Listeria test only reacts to Listeria monocytogenes, not to other, non-pathogenic, strains of Listeria. The sensitivity of the test allows fi rst results after six to eight hours and same day detection can be achieved even with dried bacteria from food industry surface materials, such as stainless steel. Arnaud Muller, the company’s CEO, stated: “Excited by these fi ndings; a great teamwork in developing our innovative technology. We are confi dent that our new method will be used more broadly to develop specifi c chemiluminescence probes relevant for the detection of a wide range of bacteria and point-of-care diagnostics. Additional detection kits are currently under development at Nemis.“ More information online: ilmt.co/PL/KJAw


IET September / October 2019 www.envirotech-online.com


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Thank you


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