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利用气相色谱-燃烧-同位素比值质谱法(GC-C-IRMS)对缴获的海洛因毒品进行来源鉴别。按照测得的海洛因和吗啡的δ13C值,对缴获的海洛因毒品作分类,并根据每对海洛因-吗啡之间的差值,给出了生产的批次信息。本文还提供了GC-C-IRMS法的测定精度并讨论了影响测定精度的诸因素。
Sources of seized heroin were identified by gas chromatography-combustion-isotope ratio mass spectrometry (GC-C-IRMS). The seizures of heroin were classified according to the measured δ13C values of heroin and morphine and the batch information given was based on the difference between each pair of heroin-morphine. This article also provides the GC-C-IRMS measurement accuracy and discusses the factors that affect the measurement accuracy.