OBJECTIVE To develop a RP-HPLC method for the determination of clonazepam (CZP) in serum of drug-dependent patients to provide a scientific basis for clinical use of CZP.
目的建立测定药物依赖症患者血清中氯硝安定（CZP）浓度的RP—HPLC法，为临床用药提供依据。
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And among people who abuse drugs and alcohol, more than three-quarters use tobacco, which means tobacco is still the leading killer of the drug-dependent, not hard drugs.