50 Environmental Laboratory Carbon and sulphur analysis made easy
For the safe, precise and reliable elemental analysis of carbon (C) and sulphur (S) in predominantly organic matrices such as soils, waste, wood, oil, coal and coke, Eltra’s new combustion analyser ELEMENTRAC CS-r with IR detection is the perfect choice. The CS-r with up to 4 infrared cells is designed for carbon and sulphur measurement over a very wide concentration range. It uses a horizontal resistance furnace with ceramic tube, which operates in a range from 600°C to 1550°C.
The CS-r elemental analyser meets or exceeds the requirements of all common ASTM, DIN, EN or ISO standards for elemental analysis. A high sample weight of up to 500 mg ensures excellent reproducibility of the elemental analysis results, even for heterogeneous samples. The high combustion temperatures and electronic monitoring of the oxygen fl ow allow complete oxidation of the sample and help to avoid too low results even with challenging materials like cement. For optimum user convenience, a monitor holder can be attached to the analyser, operation is possible via touchscreen or keyboard.
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Testa Analytical Solutions eK reports how a leading European manufacturer of Chromatography Instrumentation is using its Liquid Chromatography Flowmeter to further improve performance of their top notch HPLC Systems.
Flow rate is a critical parameter in HPLC systems, it determines retention time or volume and therefore has a major infl uence on reproducibility. The Testa Analytical Liquid Chromatography Flowmeter has set a new standard for non-invasive measurement of fl ow rate in HPLC, GPC/SEC and Ion chromatography systems.
Jeannette Ziemba of Testa Analytical commented: “All this begun with a simple inquiry from the client, interested in a high-performance device to obtain accurate values of fl ow rate in real time. They found the possibility to continuously monitor extremely low fl ow rates in combination with the ease of use of our fl owmeter software app to be attractive.
They ordered as soon as they got the technical specifi cations. Feedback from the customer is that they are very happy with the reliability, ease of use
and performance of the liquid chromatography fl owmeter. In fact, so much so, that they are investigating the possibility of integrating our fl owmeter technology into future HPLC systems to provide real-time monitoring of fl ow.”
Conveniently powered via a USB connection, the compact Testa Analytical liquid chromatography fl owmeter uses a thermal sensor that provides extremely accurate, sensitive, and high-resolution measurement of fl ow in real time. As the sensor is non-invasive it can operate over a wide dynamic range and has been demonstrated to be the perfect real-time fl ow monitoring tool for a growing range of liquid chromatography applications.
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Thermo Fisher Scientifi c is providing laboratories performing food safety analysis with a new ion chromatography tandem mass spectrometry (IC-MS/MS) workfl ow solution for regulatory compliant, cost-effective and reliable analysis of quaternary ammonium pesticides (Quats).
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The new Thermo Scientifi c™ Dionex™ IonPac™ CS21-Fast-4µm ion exchange column enables scientists to easily and accurately determine and quantify the four cationic pesticides: diquat, paraquat, mepiquat and chlormequat. These highly polar, permanently charged chemicals are notoriously challenging to analyse, and have, until now, required complex workfl ows that are prone to quantitation errors. To meet regulatory requirements across Europe, Asia and the Americas, and promote consumer safety, it is paramount for food safety laboratories to reliably determine the residue levels of these pesticides in or on food products.
When coupled with the Thermo Scientifi c™ TSQ Altis™ Plus triple quadrupole mass spectrometer, food safety testing laboratories will benefi t from reliable and robust Quat analysis that confi dently meets regulatory requirements, while improving laboratory productivity. IonPac CS21 and the TSQ Altis Plus triple quadrupole mass spectrometer complement the existing Anionic Pesticide Explorer (APX) solution from Thermo Fisher Scientifi c, providing total coverage for all polar, highly polar, ionic and ionisable food contaminants in one IC-MS/MS system. Together, the system and new column can determine and quantify not only Quats, but also glyphosate and its metabolites, and related compounds.
Learn more about the new Thermo Scientifi c Dionex IonPac CS21-Fast-4µm ion exchange column.
Pure Chromatography
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Revolutionising quat pesticide determination and quantitation workfl ows to protect food supply
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