Analysis of Trace Level Silicone Oil in Vehicle Paint using Difficult Matrix Introduction (DMI) Coupled with Selective Exclusion

Application Note No. 059 The Role of Selective Exclusion in the Analysis of Specific Hydrocarbons in n-Alkane Waxes Diane Nicholas. Introduction The analysis of wax n-alkanes, between C10 and C70 +, in crude oil, condensates and wax deposit samples by…

Application Note No. 070 The Analysis of Mineral Oil in Sunflower Oil Diane Nicholas. The principles of selective exclusion, when venting the involatile sample components, are to: Introduction The low-level detection and quantification of food grade mineral oil in sunflower…

Application Note No. 082 Multi-Residue Analysis of Pesticides in Samples of Lettuce and Peas Using Large Volume-Difficult Matrix Introduction-Gas Chromatography-Mass Spectrometry (LV-DMI-GC-MS) Richard Fussell, Central Science Laboratory, York, N. Yorks, UK Diane Nicholas Introduction Ethyl acetate is widely used as…

Application Note No. 080 Analysing Quaternary Ammonium Salts (QAS) in Seawater by Difficult Matrix Introduction (DMI) Diane Nicholas • No sample preparation necessary • Removes water under controlled conditions prior to analysis • Retains the salt and involatiles within the…