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Showing 1 to 1 of 1 for “"Substance Abuse Testing"”.
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Papain: a Novel Urine Adulterant.
… with marijuana being the most frequently abused drug. Urine adulterants provide an opportunity for illicit drug users to obtain a false negative result on commonly used primary drug screening methods such as the Fluorescence Polarized Immunoassay (FPIA) technique. Typical chemical …