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采用气相色谱－原子发射光谱联用仪（ＧＣ－ＡＥＤ）测定了１８种安眠镇静药的元素组成和元素比例。根据气相色浴－质谱（ＧＣ－ＭＳ）测定的分子量数据推测出它们的分子式，结果与实际值一致。以元素组成、元素比例和保留时间为判据，对一例中毒患者全血样品进行了定性分析，发现血中含有苯巴比妥。
The elemental composition and elemental ratio of 18 kinds of sedative sedatives were determined by gas chromatography-atomic emission spectrometry (GC-AED). Their molecular formulas were deduced from the molecular weight data determined by gas chromatography-mass spectrometry (GC-MS) and the results were in agreement with the actual values. Based on the elemental composition, elemental proportion and retention time, a qualitative analysis of a sample of poisoned patients with whole blood samples showed that phenobarbital was found in the blood.