20 Environmental Analysis Advanced XRF Analysis
PANalytical (The Netherlands) has extended the compatibility of its Omnian advanced standardless analysis software to now include the compact benchtop MiniPal 4 X-ray fluorescence (XRF) spectrometer. This combination offers a premium XRF solution that is both easy to use and extremely powerful. It is ideal for routine lab and field analysis, offering quantification of unknowns in situations where certified standards are not available.
Ready for any sample type, Omnian provides elemental analysis of all materials no matter how they have been prepared. Typical applications include rapid screening, comparative analysis and R&D investigations. In the default ‘black box’ mode, Omnian provides fast answers for industries such as: healthcare, pharmaceutical, food, environmental, oil, minerals and mining. Unlike traditional standardless approaches, Omnian data is both comprehensive and available for detailed review.
Incorporating cutting-edge technology, Omnian achieves superior accuracy, setting the benchmark for
standardless analysis. This is achieved through the automatic use of PANalytical’s advanced Fundamental Parameters (FP) algorithm which deals with the analytical challenges posed by differing sample types. Other innovations include the support of multiple excitation conditions and the inclusion of several unique features. Fluorescence Volume Geometry (FVG) and Finite Thickness (FT) corrections, for example, improve accuracy when analysing heavier elements in low density samples or samples with varying thicknesses. In addition, Adaptive Sample Characterisation (ASC) minimises particle size and mineralogical effects. This results in greater accuracy approaching the quality only achievable with dedicated calibration methods and standards.
Reader Reply Card no 66 Compact OEM Mass Flow Controllers
The new Axetris mass flow controller modules MFC 2022 from Leister (Switzerland) measure a mere 50 x 48 x 25 mm and are designed for the requirements of demanding OEM customers. The modules are ideally suited for analytical instruments in the area of gas chromatography, thermal analysis, bioreactors, CO2 gas lasers and more.
The MFC 2022 modules are multi-gas and multi-range capable. The high accuracy and the fast reaction time of the MEMS based sensing element allows for quick and precise control of the gas flows, even then when disturbance variables are present (for example pressure pulses). The modules are
available for Air, N2, O2, Ar, CO2, He, H2 and for flow rates from 50 to 3’000 sccm (full scale, N2 equivalent). The high dynamic range allows the
combination of various gases and flow ranges in one single unit. The modules are available with digital (RS232) and analog interfaces as a standard.
Labview based software tools enable easy configuration of the mass flow controller MFC 2022. The following settings can be made: Selection of gas and full-scale flow ranges, change of the reference conditions, filter and control parameter settings, customised scaling of the full scale flow range etc.
The mass flow controller modules are available in production quantities from July 2010. Reader Reply Card no 67
Standards for the Environment Keeping Our World Safe
c i t
Dionex (USA) is pleased to release Application Note 244 that demonstrates a simple, two- dimensional analytical technique for the analysis of total phosphorus. Application Note 244: Determination of Total Phosphorus Using Two-Dimensional Ion Chromatography uses an IonPac®
AS11-HC column to separate phosphate from a large excess of sulfate.
Analytical Chemical Reference Standards 203-786-5290
AccuStandard
AccuStandard.com
ISO Guide 34 • ISO 17025 • ISO 9001 Reader Reply Card no 69 Reader Reply Card no 70 ®
The primary analysis methods prescribed by the U.S. EPA for the determination of phosphorus are colorimetric, using an autoanalyser or spectrophotometer. Ion chromatography (IC) with suppressed conductivity detection is preferable to colorimetry due to the elimination of a very toxic reagent, antimony potassium tartrate. However, single-dimensional IC is difficult to perform at the required detection limit. The method described in Application Note 244 provides a simple, two-dimensional technique that improves quantitation of the phosphate using only one column. Reduced instrument complexity, lower cost, and reduced software control and hardware management are also demonstrated.
Reader Reply Card no 71 Reader Reply Card no 68
Two Dimensional Ion Chromatography for the Determination of Total Phosphorus
IET
Annual Buyers Guide 2010
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