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an1097 determination pesticide residues drinking water using automated solidphase extraction gas chromatography with nitrogen phosphorus detection

AN1097: Determination of Pesticide Residues in Drinking Water Using Automated Solid-Phase Extraction and Gas Chromatography with Nitrogen Phosphorus Detection

Instrument Type: GC

This application note addresses the detection of trace amounts of organophosphorus pesticides in water and optimizes the conditions for solid-phase extraction (SPE) and chromatographic analysis using the AutoTrace 280 Solid-Phase Extraction instrument and the Thermo Scientific™ TRACE™ 1300 Series gas chromatograph with a nitrogen-phosphorus detector (NPD).

analysis total organic carbon toc by gcms

Analysis of total organic carbon (TOC) by GC-MS

Instrument Type: GCMS

In this work the suitability and selective performance of the Thermo Scientific TraceGOLD TG-5SilMS for the analysis of total organic carbon was demonstrated. TOC can be used as a useful measure of the broad estimation or residual pesticides and other carbonaceous material. It is especially useful when coupled to mass selective detection as it allows identification and quantification of specific contaminating materials. Note the retention times in the component table match the component number and are not the actual retention time.