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MASS SPECTROMETRY & SPECTROSCOPY
PETRO-QUANT - Quick and Easy, Accurate and Precise Quantitative Elemental Analysis of Hydrocarbons
X-ray fluorescence analysis (XRF) is used in the hydrocarbon processing industry and related branches for trace element determination in all kind of petrochemical materials. Often a single instrument has to provide full analytical flexibility and performance for all applications in quality and process control, research and development, fulfilling future demands and decreasing limit values for regulated elements. Bruker AXS offers the WDXRF spectrometer S8 TIGER with its innovative, optimised X-ray optics and user interface matching all needs in petrochemical labs.
While the S8 TIGER’s low temperature, high-intensity X-ray tube with protective coating excites the sample even more efficiently, the combination of the tube with the shortest beam path leads to the highest possible element sensitivities. The versatile beam path and wide selection of different crystals and collimators provide advanced analytical flexibility even for the most demanding applications.
Thanks to SampleCare users in the petro chemistry can rely on the S8 TIGER 100%. SampleCare constantly protects all important system components from contamination, which might lead to incorrect results or in the worst case to system stoppage. Our S8 TIGER with SampleCare prevents this safely in 4 ways: The DuraBeryllium tube shield protect the head of the X-ray tube; the mask changer and the unique vacuum seal protect the goniometer chamber. If, by chance anything should have gone wrong during preparation, and the sample breaks or leaks out, it is not a problem. System components are well protected, easy to access and can be cleaned with little effort.
Circle no. 338 Circle no. 337 New White Paper for Spectro MS
A new white paper dealing with isotope ratios in geochemistry for the simultaneously measuring Spectro MS ICP mass spectrometer is available from Spectro Analytical Instruments. The white paper, titled ‘Fully Simultaneous ICP-MS: A New Approach to Isotope Geochemistry’, details ways geological laboratories can profit from isotope and element ratio analysis and designates the Spectro MS as a powerful, user-friendly and less-expensive alternative to multi-collector mass spectrometers.
The isotope ratios offer insight into the age and origin of rock samples and can be used to determine the ‘fingerprint’ of rock, mineral and ceramic samples. Rare earth metals are especially important geochemical indicators, whose relative presence helps establish conclusions as to tectonic environment and history.
“Until now simultaneous determination of isotope and element contents was only possible to a certain degree; making analyses both time consuming and expensive,“ explained Willi Barger, Product Manager for ICP-MS at Spectro. “The Spectro MS simultaneously records 210 isotope concentrations and ratios to four decimal places during every measurement and at a much lower cost than sequential mass spectrometers. “Detection limits for the Spectro MS are in the low parts- per-trillion (ppt) range. In addition, the Spectro MS is easy to operate. Users obtain categorised, reproducible results with the press of a button.” Users who want to find out more about using the Spectro MS for isotope and element ratio analysis in geochemistry will find a comprehensive description in the new white paper ‘Fully Simultaneous ICP-MS: A New Approach to Isotope Geochemistry’ that is available for free online. The white paper is oriented not just towards geochemical laboratories but to other users as well. The Spectro MS is ideal for origin determination in the food industry, forensic science and other areas.
Circle no. 339
The New Non Contact Spectrophotometer The Lovibond®
NC45 Non Contact 45/0° geometry benchtop spectrophotometer is designed for the colour measurement of many types of wet and dry samples including powders, pastes, gels, plastics and paints. The versatile form factor also simplifies measurements of two and three dimensional objects. The Lovibond® NC45 is the solution for many of the measurement problems that have, to date, remained unsolved. It is ideal for measuring the colour of products that normally require protection from physical contact such as liquids and pastes, or in which the surface appearance is changed by the presentation method, such as when the sample is pressed behind glass. These can now be measured in their natural, unaltered state, as the eye sees the sample. Simplified measurements on two and three dimensional objects are also accommodated via the integrated gloss sensor which provides 60° correlated gloss values. The NC45 standard ‘spoon’ and ‘petri dish’ adaptors allow accurate and repeatable sample presentation with customised adaptors, for unique requirements, further increasing the flexibility of this new product line. An additional NC45 mounting stand also allows easy, accurate height adjustment, accommodating measurements of varying heights and shapes, eliminating guesswork and ensuring accurate and repeatable measurement results on virtually any sample.
Circle no. 340
High Resolution Near-Infrared Spectrometer with Spectral Response from 900-2500 nm
Ocean Optics has expanded the capabilities of its small-footprint near-infrared spectrometers with the introduction of NIRQuest512-2.5. A high-resolution device with response from 900-2500 nm, NIRQuest512-2.5 is well suited to laser characterisation and applications requiring longer integration times.
A high-stability, 512-element Hamamatsu Indium Gallium Arsenide (InGaAs)-array detector doubles the amount of pixels previously available in the 900-2500 nm range, significantly increasing optical resolution. Depending on the user-selected configuration of grating options and optical bench entrance slit size, optical resolution as good as 4.1 nm-6.3 nm (FWHM) is possible. The lower overall dark noise of the system enables longer integration times, which is especially useful in low light level environments. Users are able to capture data when an external event occurs, or to trigger an event after data acquisition, with the spectrometer’s external hardware triggering functions. Spectrometer operation is controlled using SpectraSuite software, a modular, Java-based spectroscopy platform. In addition, NIRQuest512-2.5 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 existing Wi-Fi connection.
Circle no. 341
LAB ASIA - MAY/JUNE 2011 - MASS SPECTROMETRY & SPECTROSCOPY
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