以下为句子列表：
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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英文: The load thresholds for hexanal, acetophone and nonanol were μL, while that for bezenaldhyde was 0 μL. None of the compounds reached saturation at the stimulus load series.
中文: 雌蜂对正己醛、苯乙酮、正壬醇的反应阈值为 μL ,对苯甲醛的反应阈值为 0 μL ,在所测的浓度范围内 ,对 种化合物的反应均未达到饱和
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英文: The major aroma components were benzaldehyde (0.0%), hexanoic acid(0.0%) , nonaldehyde (0.0%), octanoic acid (0.0%), nonanol (0.0 %), nonanoic acid (0.0%), d-cedrene (0.0%), cedrol (0.0%) etc.
中文: 主要成分为苯甲醛(0.0％)、已酸(0.0％),壬醛(0.0％),辛酸(0.0％),壬醇(0.0 ％),壬酸(0.0％),α—柏木烯(0.0％),柏木脑(0.％)等。
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