摘要
对气相色谱法用于测定土壤生物降解过程中柴油含量的可行性进行了研究。首先制备柴油标准溶液，采用气相色谱法测定丙酮-正己烷（1：1）萃取液对土壤中柴油的萃取效果。测量结果表明柴油的质量浓度在0．5～3g／L范围内线性关系良好，检出限为0．45g／L，测定结果相对标准偏差为1．16％～1．42％（n=5），加标回收率为100．6％～103．6％。研究结果表明在生物降解过程中，降解作用导致柴油组分发生了变化，柴油中不同组分降解效果不一致，气相色谱法能够真实地反映生物降解过程中柴油含量的变化。
The feasibility of gas chromatography（GC） for the determination of the content of diesel in soil during the biological degradation process was studied. GC was used for detection of diesel with known concentration extracted by the acetone-n-hexane （1 ： 1）. The test results showed good linear relationship in the range of 0.5-3 g/L with the relative standard deviation of 1.16%-1.42%（n=5）, the detection limit was 0.45 g/L, the recoveries were 100.6%-103.6%. In the process of biodegradation, GC could reflect the change of diesel oil content in the biodegradation process due to different changes for the different component in the diesel.
出处
《化学分析计量》
CAS
2015年第6期44-47,共4页
Chemical Analysis And Meterage
关键词
气相色谱法
生物降解
柴油
gas chromatography
biodegradation
diesel
