10
CHROMATOGRAPHY & SPECTROSCOPY
NIR Sensing Power in Small Footprint Versatile Spectrometer
A high-performance optical bench, low-noise electronics and various wavelength range options make the NIRQuest Spectrometer from Ocean Optics versatile enough for NIR applications ranging from moisture detection and chemical analysis to high-resolution laser and optical fibre characterisation. This robust, plug-and-play spectrometer is available in versions for 900-1700nm, 900-2050nm and 900-2500nm coverage.
NIRQuest uses a high-performance Indium Gallium Arsenide (InGaAs)-array detector in a compact optical bench with thermoelectric cooler and low-noise electronics. A high gain mode option improves system sensitivity for low light-level and low-concentration measurements. In addition, integration times as rapid as 1ms are possible.
NIRQuest’s modular design and new grating options deliver more customisation for a wider variety of applications: moisture analysis in grains and
cereals; chemical analysis of blood and tissue; bacterial detection in food and beverage production; nitrogen content monitoring of plants and soils; and chemical composition of pharmaceuticals. A special grating option and external triggering are useful tools for high-resolution (to 0.25nm FWHM) laser characterisation. NIRQuest Spectrometers are also available for integration into OEM devices.
The NIRQuest uses SpectraSuite Spectrometer Operating Software – a modular, Java-based spectroscopy platform that operates in Windows, Mac OS and Linux operating systems. Plus, NIRQuest can be bundled with the Remora Network Adapter from Ocean Optics to turn the system into a multi-user spectral data server over
Ethernet or your existing Wi-Fi connection Circle no. 335
Trace-level Determination of Perfluorinated Compounds in Water
The human and environ- mental exposure potential of perfluorinated alkyl substances such as perfluoro- octane sulfonate (PFOS) and perfluoro-octanoate (PFOA) has become the subject of intense research. Metrohm presents an easy-to-use and economic direct-inject- ion method for PFOA and PFOS determination in drinking water.
The currently used method for the determination of anionic perfluorinated surfactants is LC-MS/MS. The analytical methods for the determination of PFOS
and PFOA in water samples generally employ a C18-SPE column, either with or without ion pairing or acidification, followed by LC-MS/MS. However, this method suffers from relatively high running and investment costs.
The new Metrohm method is a good alternative regarding both investment on instrumentation and usability. The method is based on suppressed ion chromatography with isocratic elution on a reversed-phase column thermostated at 35°C using an aqueous mobile phase containing boric acid and acetonitrile. The used detection technique is conductivity.
While PFOA and PFOS determination in low salt-containing water samples can be performed using straightforward direct injection chromatography, samples with higher alkaline-earth- metal concentration, e.g. tap, lake, sludge or river water samples, should pass over a cation exchanger such as Metrohm’s Sample Preparation Module «SPM» prior to separation.
Circle no. 336
Chromatography Data System Software Enhancements
The ChromSword® Group is pleased to announce the release of a new Automated Method Development interface for its ChromSwordAuto®
product and the Dionex Chromeleon® CDS
software. This new interface was developed in cooperation with Dionex Corporation and allows combining Dionex UltiMate®
3000 instruments with powerful tools for method
development offered by ChromSword. The new solution uses Chromeleon software to control the instrument and sequence data and optimised instrument methods are stored in the Chromeleon database for later use. The ChromSwordAuto interface features include automatic search for optimal separation conditions including column switching, solvent selection, and gradient optimisation. The options are set in the ChromSwordAuto interface and automatically transferred to Chromeleon software.
“The new solution makes method development a lot easier, especially when combined with the column and solvent switching capabilities of the UltiMate 3000 HPLC product line,” said Andreas Brunner, Product Manager, Chromatography Software, LSBU Dionex. Dr Sergey Galushko, Head of the ChromSword Group development team, stated: “Chromeleon and ChromSwordAuto are very powerful software systems. The combination of ChromSwordAuto intelligent method development tools with Chromeleon flexible instrument control functionalities will provide a major benefit to our customers. Using ChromSwordAuto and Chromeleon in tandem allows a chromatographer to run all method development tasks fully automatically: this includes method scouting, impurity profiling, fine optimisations, and robustness tests. I am confident that this combination will substantially reduce method development time for Chromeleon and ChromSwordAuto users.”
The ChromSword Group is an organisation of international scientists, analytical and physical chemists, mathematicians and programmers dedicated to the automation of chromatographic method development and validation processes. ChromSword products are used worldwide for computer-assisted and fully automatic method development.
Circle no. 337
NLG Analytical has launched ‘v-kit Pro’ – a completely new qualification management and execution platform designed to complement and extend the functionality and efficiency of the company’s ‘v-kit’ chromatography-instrument qualification kits.
At the heart of v-kit Pro is a new qualification database. This enables users to manage user-rights, qualification requirements and test-outcomes. Editable electronic protocols allow qualification of protocols to be defined, rather than just documenting set-points and limits. Users can create system-type or instrument-specific protocols, edit and lock set-points and acceptance limits, remove or rename tests, and review previously completed tests and protocols.
v-kit Pro also extends the range of v-kit qualification products – the first of which are qualification kits for single quadropole GCMS detectors, such as the Agilent 5973 and 5975. These will be followed shortly by kits for the Shimadzu GCMS QP2010, and Thermo DSQ.
Key benefits of v-kit Pro: supports the qualification of any analytical technique with a single system; uses a modern, web-based user interface; provides management of protocols and qualification requirements. Allows previously completed protocols to be reviewed; electronic protocols actually define the qualification in the system, rather then just documenting set-points and limits; creates and distributes protocols based on user requirements. Enables edit of set-points and acceptance limits, also removing or renaming of tests; and dministrator, supervisor or user accessibility-levels. Administrators can control the rights of defined users. Managers can create and edit protocols, users can only run protocols.
Stand out from the crowd... Contact:
sales@intlabmate.com
LAB ASIA - NOVEMBER/DECEMBER 2009 - CHROMATOGRAPHY & SPECTROSCOPY
v-kit Pro has been developed to enable qualifications to be managed and performed with better quality, efficiency and traceability by anyone who runs a service department, administers an organisation's qualifications or delivers qualification services. v-kit Pro is a comprehensive system for consistent qualification of any analytical technique across almost any instrument make, regardless of location.
Circle no. 338
New Limits for Qualification Management and Efficiency
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56
