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Extraction of 11-Nor-9-Carboxy-Δ9-THC-Carboxylic Acid (THCA) from Hair Samples for LC-MSMS Analysis Using CEREX® HPSAX 20mg 1mL Columns

Extraction of 11-Nor-9-Carboxy-Δ9-THC-Carboxylic Acid (THCA) from Hair Samples for LC-MSMS Analysis Using CEREX® HPSAX 20mg 1mL Columns