The study researched the derivative way of carbohydrates with BSTFA by GC-MS.
研究了衍生化试剂BSTFA对烟草中糖类的衍生化反应，并用GC - MS进行分析。
After samples were derived by BSTFA, GC-MS took metoprolol as the internal standard substance and made a qualitative and quantitative test.
样品经双甲基硅烷三氟乙酰胺衍生后，以美托洛尔为内标物，用气相色谱-质谱联用仪进行定性定量分析。
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