8 On-line Dual TD-GC-FID/MS for Automatic and Continuous VOC Monitoring in Ambient and Industrial Air


Ambient air is polluted by many Volatile Organic Compounds (VOCs) coming from anthropogenic and natural sources. Due to the large number of these molecules, there is a need to combine their separation and quantification by Gas Chromatography (GC) with Flame Ionisation Detection (FID) and their individual identification by Mass Spectrometry (MS).


With this aim, Chromatotec® has developed a turnkey solution which allows the automatic quantification and identification of VOCs, such as PAMS, TO14 and TO15: the airmoSCAN


XPERT. It is a combination of two robust instruments: a dual GC-FID for the monitoring of C2 to C16 compounds (airmoVOC expert) and a process Quadrupole MS. The instrument allows the monitoring of up to 123 VOCs at ppt, ppb, ppm and % levels in only 30 minutes.


Thanks to its many advantages (easy to use, fully automatic with no gas bottles, intrinsically linear, precise and very stable), it guarantees more than 4 months stability for an MS system and years of stability for a FID system. airmoSCAN XPERT has been implemented in fixed and mobile laboratories for urban and industrial field analysis all over the world.


Among its main industrial applications are those that require very high sensitivity, such as the air analysis in clean air rooms with airmoTWA (including a multiplexer to analyse up to 16 streams). More information online: ilmt.co/PL/EQRG


48254pr@reply-direct.com


New Fully Automated Preparation Module for LC-MS Released


Shimadzu has released the CLAM-2030 fully automated preparation module for LC-MS. This module automates everything from the preparation of urine, blood and other biological samples to measurement via liquid chromatography mass spectrometry (LC-MS). In only 3 to 8 minutes, the CLAM-2030 preparation module completes the blood samples preparatory process including the addition of reagents, mixing of the solution and the addition of a deproteinisation liquid, all of which conventionally takes 15 to 20 minutes. Furthermore, if the samples and reagents are placed and positioned in special containers for automatic conveyance to the LC-MS by an autosampler, the module can perform all of the processes automatically, on weekends and overnight.


In response to the needs of clinical research sites, the CLAM-2030 provides stable data acquisition, lower running costs and improved work efficiency. The module can be connected to four models of triple quadrupole liquid chromatograph mass spectrometers, the LCMS-8040, LCMS-8045, LCMS-8050 and LCMS-8060. Work efficiency is further improved by using it in combination with a commercial analysis kit.


To enable automatic measurement of up to 60 samples, the special preparation containers simply have to be placed in the module. Approximately 20 samples can be processed per hour. If the forensic toxicological database and the rapid toxicology screening system (options available from Shimadzu) are used, the library can be searched automatically and reports can be generated after preparation.


A special structure (using septa) prevents vaporisation of internal standard substances, thereby suppressing concentration fluctuations and leading to a more stable measurement process. Additionally, multiple management functions including ID management of samples via a barcode reader (option), management of expiration dates and remaining quantities of reagents, and maintenance log records maintain the module in an optimal state.


After samples and reagents are positioned, preparation can be started with simple operations, alleviating mistakes due to manual procedures. The waste box for preparation containers and the waste liquid tank are equipped with full sensors, which help reduce the risk of infections during sample preparation.


More information online: ilmt.co/PL/9ZZy 48572pr@reply-direct.com


New Analysis Tool Quickly Detects, Classifies and Identifies Microparticles


WITec GmbH, pioneer of Raman imaging and correlative microscopy, has introduced ParticleScout, a revolutionary particle analysis tool for the alpha300 Raman microscope series. It enables researchers to find, classify, quantify and identify particles quickly and easily.


ParticleScout delivers a greatly accelerated workflow to the researcher investigating particulate samples while making full use of confocal Raman imaging’s abilities in fast, label-free and nondestructive chemical characterisation. It begins by surveying samples with bright and dark field illumination to view the particles they contain. Image Stitching combines many measured areas for a detailed overview of large areas and Focus Stacking allows larger particles to be sharply rendered for accurate outline recognition. The optical images lead to the creation of a mask which is used to physically categorise particles of interest and arrange them in a ranked list. A Raman spectrum is then automatically acquired from each particle.


The Raman spectra are evaluated and the particles they correspond to can be identified manually or by using the seamlessly-integrated WITec TrueMatch Raman database software. This integration of a particle analysis tool with a Raman database is unique in the industry and offers a streamlined experimental environment to boost productivity.


Finally, ParticleScout generates a comprehensive report that features user-selectable combinations of filters and advanced algorithms to show the quantities of selected particles and their prevalence relative to other groups. These reports make ParticleScout the perfect tool for finding correlations between the physical and chemical attributes of particles.


From large-area imaging to high-resolution spectroscopy, the technology underlying ParticleScout provides thorough and detailed insight to the researcher in microplastics research, environmental science, pharmaceutical research, geology, food science and many other fields.


“ParticleScout expands our product range into an area that is currently experiencing an enormous boom due to the public debate on microplastics in the environment. Raman spectroscopy is an extremely powerful tool for the rapid identification of these sorts of harmful particles,” explained Dr Joachim Koenen, WITec Co-founder and Managing Director. “In addition, ParticleScout provides an unprecedented level of speed and ease of use in particle analysis with Raman microscopy. With ParticleScout, a time-consuming sequence of individual steps has been transformed into a flowing, continuous and fast process,” Koenen continued.


More information online: ilmt.co/PL/ALrq 48632pr@reply-direct.com


New Compact Gas Analyser Family Introduced


Hiden Analytical introduces the new HPR-20 range of application-specific compact benchtop gas analysers for dynamic measurement of in-process gas composition. All systems feature precision quadrupole mass spectrometers with standard mass range options 200 and 300 amu, with mass range options from 20 to 1000 amu being available for specialised applications.


The HPR-20 EGA system is configured for fast-response evolved gas measurement at near-atmospheric pressures utilising bypass capillary sampling, with sample consumption rates typically 1-15 mL/minute. Systems are routinely used in conjunction with thermal gravimetric analysers (TGAs), with standard interface options available for operation with a wide range of TGA systems.


The HPR-20 TMS Transient system offers the optimum response time for fast event studies. The system uses a direct pulse ion counting detector with a 7-decade dynamic range, from 1 to 107 counts per second, and with the multichannel scalar option provides a time resolution of just 50 nanoseconds. The TMS system uses the 3F-series quadrupole with triple-stage mass filter providing optimum abundance sensitivity for mass resolution of minor species.


The HPR-20 R&D system is optimised for the researcher, with a wide selection of standard and customised system interface configurations available including options for direct sampling from sample pressures up to 30 bar. An 8-channel multi-stream selector option enables sample auto-selection from multiple gas streams, and a 4 or 8-channel mass flow-controlled gas preparation module provides on-line precision gas mixtures for system calibration and for direct supply to the user’s reaction process.


More information online: ilmt.co/PL/Rdkr 47960pr@reply-direct.com


INTERNATIONAL LABMATE - JULY 2019


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