sample preparation and pretreatment
sample preparation and pretreatment
样品制备和预处理
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Several sample preparation and pretreatment techniques in GC-MS analysis were reviewed. The trends in the development of these methods were also discussed.
综述了气相色谱-质谱联用仪分析样品的几种前处理技术，并对今后样品制备与前处理技术进行了展望。
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