December 2025—Bio-Rad Laboratories has launched an enhanced version of its Liquichek opiate control. This version includes updated fentanyl target levels optimized for clinically relevant cutoffs across major chemistry platforms. It contains eight opioid drugs or drug metabolites at concentrations above and below assay cutoffs as recommended by the U.S. Substance Abuse and Mental Health Services Administration, other agencies, and reagent manufacturers.
he control is tested by gas chromatography-mass spectrometry, LC/MS/MS, and other methods to confirm the recovery of drug concentration, with representative values provided for screening and confirmatory methods.
Bio-Rad Laboratories, 510-724-7000