以下为句子列表：
英文: Conversion rate of lanolin in propyl alcohol reached 7 .% after reacting for h. It was as high as the conversion rate after reacting 8 h under atmospheric pressure without the solvent.
中文: 选择正丙醇作为溶剂 ,反应 h后的转化率为 7 %,可以达到常压一步法反应 8h所达到的转化率。
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英文: The content of free acetic acid in cigarette smoke condensates was determined by GC-MS with isopropyl alcohol as the solvent and nonanol as the internal standard. RSD of the method was less than % and the average recovery of acetic acid was 99.9%.
中文: 以异丙醇为溶剂,壬醇为内标,采用气相色谱-质谱法分析了卷烟烟气总粒相物中的游离乙酸,乙酸测定结果的相对标准偏差小于%,平均回收率为99.9%。
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