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AWWA QTC98366
- A Single Extraction Procedure for Consolidating Sample Preparation for Semi-Volatile Organic Analytical Groups in Drinking Water
- Conference Proceeding by American Water Works Association, 01/01/1998
- Publisher: AWWA
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Drinking water in the Toronto area has historically shown a limited number of organic compounds detected at low Method Detection Limits (MDLs). The problem of chemical interference during the sample extraction process was not significant. A single neutral dichloromethane Liquid/Liquid Extraction (LLE) from 1 L samples was established to cover 10 types of Gas Chromatograph (GC) analyses for 218 semi-volatile target compounds. All 10 types of analyses were successfully accomplished using a single dichloromethane LLE from a 1L sample. This automated procedure had the advantage of reducing solvent usage and sample preparation time. The turnaround time for all 218 target compounds was 2-3 days for up to 11 samples.
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