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Extraction of Ethyl Glucuronide and Ethyl Sulfate (EtG and EtS) from Urine Samples for LC-MSMS Analysis Using CEREX® ETGS 50mg 1mL Columns

Extraction of Ethyl Glucuronide and Ethyl Sulfate (EtG and EtS) from Urine Samples for LC-MSMS Analysis Using CEREX® ETGS 50mg 1mL Columns