Head-Space Analysis for the Quantitative Determination of Trichloroethylene and Tetrachloroethylene in Oils and Liquid Paraffin
Head-Space Analysis for the Quantitative Determination of Trichloroethylene and Tetrachloroethylene in Oils and Liquid Paraffin
复制标题
顶空分析法定量测定油和液体石蜡中的三氯乙烯和四氯乙烯
DOI：
10.1515/cclm.1977.15.1-12.431
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发表时间：
1977
期刊：
影响因子：
--
通讯作者：
G. Osterkamp
中科院分区：
文献类型：
--
作者：
H. Drexler;G. Osterkamp
已知几种方法用于检测油或石蜡中的痕量溶剂。用于测定残留溶剂的重量法（3）和快速比色法（4）不够灵敏。同样的情况也适用于由Mehlenbacher和Mehlenbacher（5）开发的用二甲苯萃取后测定植物油中三氯乙烯的方法。用气相色谱法可以进行相当灵敏的检测。因此，Watts &Holswade（6）将油直接注入GC柱。Theiler（7）将该方法用于检测油中的残留溶剂。例如，将齐墩果碱注射到填充有硅胶的预柱上。载气氮气将溶剂从样品中取出，进入分离柱。通过这种方式，仅检测到易挥发的物质。Herbolsheimer和Funk（8）开发了一种顶空法，用于检测暴露于这种溶剂的人的血液和尿液中的三氯乙烯及其代谢物。
Several methods are known for the detection of traces of solvents in oil or paraffin. A gravimetric method (3) and a rapid colorimetrie method for the determination of residual solvents (4) are not sensitive enough. The same is true for the method developed by Eisdorf er &,Mehlenbacher (5) for the detenninatipn of trichloroethylene in plant oils after extraction with xylene. Rather sensitive detection is possible by gas chfomatography. Thus, Watts &Holswade (6) injected the oil directly on the GC column. Theiler (7) adapted this method for the detection of residual solvent in oils. For example, oleoresine is injected onto a preeolumn packed with silica gel. The carrier gas, nitrogen, takes the solvents out of the sample into the separation column. By this means only readily volatile substances are detected. Herbolsheimer & Funk (8) developed a head-space method for the detection of trichloroethylene and its metabolites in blood and urine of humans, who had been exposed to this solvent.