This simple sample preparation procedure delivers clean extracts and analyte recoveries greater than 80% with RSDs lower than 10% for carboxy-THC and its deuterated internal standard. Using Biotage® Extrahera™, 24 samples are extracted in approximately 35 minutes. Limit of quantitation is below the SAMHSA/EWDTS confirmation cut off of 15 ng/mL for workplace testing applications.
This method delivers clean extracts and analyte recovery of 90% with RSD lower than 10% for carboxy-THC and its deuterated internal standard. Using the Biotage® Extrahera™, 24 samples were extracted in approximately 38 minutes. The limit of quantitation of 2 ng/mL is below the SAMHSA/ EWDTS confirmation cut off of 15 ng/mL for workplace testing applications.
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