例句與用法

1. According to these the quantitative analysis for product citronellol is carried out by gc with fid ( fire iron detector ) as detector using hypnone as an internal standard
   采用標準圖譜比較和添加產物標準品對照的方法進行定性分析；確立了苯乙酮為內標物和用內標法進行定量分析的方法。
2. Three methods for synthesis of mandelic acid were introduced in the article , and their advantages and disadvantages were compared . the method of mandelic acid synthesis using hypnone was selected , and flow chart and operation process were studied
   本文對扁桃酸常用的三種合成方法進行了介紹,對其工業(yè)化生產的優(yōu)缺點進行了對比,最終選定了苯乙酮法,并給出了工藝流程圖和操作步驟。