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Methadone Control Level 2 (375 ng/mL)The Multi-Analyte Urine Drug of Abuse (DAU) Controls are for use as controls in the qualitative and semi-quantitative calibration of Lin-Zhi International, Inc. (LZI) Amphetamines Enzyme Immunoassay (REF# 0100/0101), Opiate Enzyme Immunoassay (REF# 0020/0021),Cocaine Metabolite Enzyme Immunoassay (REF# 0030/0031), Benzodiazepine Enzyme Immunoassay (REF# 0130/0131), Barbiturate Enzyme Immunoassay (REF# 0140/0141), and Methadone Enzyme Immunoassay (REF# 0110/0111), on a number of automated clinical chemistry analyzers.