ResourceSeparations
Neutral-to-Analysis Sample Preparation for the Detection of PAH and Phthalates
21 Jun 2011In this application note from Retsch, samples are prepared for chromatographic analysis of polycyclic aromatic hydrocarbons (PAH) and phthalates. Samples analysed may be heat-sensitive or contain volatile components which can be expelled by the warmth generated during grinding. Only a sample which is representative of the original material can provide meaningful and reliable analysis results. Therefore a two-step size reduction process, using a cutting mill and cryogenic grinder, is presented.
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Sample PreparationSample preparation can improve the quality and speed of separation techniques. Products to assist sample preparation include filtration equipment, evaporators, membranes and sieves.Environmental Monitoring and TestingEnvironmental monitoring and testing uses handheld portable analyzers, kits, spectrometers or chromatography systems for air, water, soil, food and other sample testing. Useful features of analyzers such as BOD and COD include portability, easy calibration, automation and sensitivity. Environmental test kits for pH, water, moisture, etc, should be accurate, sensitive, reliable, fast and easy to use.Phthalates