Simultaneous Determination of Benzene and Toluene in Pesticide Emulsifiable Concentrate by Headspace GC-MS

文献类型： 外文期刊

第一作者： Cao, Lidong

作者： Cao, Lidong;Jiang, Hua;Yang, Jing;Li, Fengmin;Huang, Qiliang;Fan, Li

作者机构：

关键词： Simultaneous;Benzene;Concentrate

期刊名称：JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY （ 影响因子：2.193； 五年影响因子：2.4 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： The toxic inert ingredients in pesticide formulations are strictly regulated in many countries. In this paper, a simple and efficient headspace-gas chromatography-mass spectrometry (HSGC-MS)method using fluorobenzene as an internal standard (IS) for rapid simultaneous determination of benzene and toluene in pesticide emulsifiable concentrate (EC) was established. The headspace and GC-MS conditions were investigated and developed. A nonpolar fused silica Rtx-5 capillary column (30m × 0.20mm i.d. and 0.25 μm film thickness) with temperature programming was used. Under optimized headspace conditions, equilibration temperature of 120°C, equilibration time of 5 min, and sample size of 50 μL, the regression of the peak area ratios of benzene and toluene to IS on the concentrations of analytes fitted a linear relationship well at the concentration levels ranging from 3.2 g/L to 16.0 g/L. Standard additions of benzene and toluene to blank different matrix solutions 1ead to recoveries of 100.1%–109.5% with a relative standard deviation (RSD) of 0.3%–8.1%. The method presented here stands out as simple and easily applicable, which provides a way for the determination of toxic volatile adjuvant in liquid pesticide formulations.

分类号： O65

  • 相关文献

[1]Simultaneous targeted analysis of five active compounds in licorice by ultra-fast liquid chromatography coupled to hybrid linear-ion trap tandem mass spectrometry. Kong, Weijun,Wen, Jing,Yang, Yinhui,Qiu, Feng,Yang, Meihua,Wen, Jing,Yang, Yinhui,Sheng, Ping.

[2]Characterization of the rumen microbial community composition of buffalo breeds consuming diets typical of dairy production systems in Southern China. Lin, Bo,Henderson, Gemma,Cox, Faith,Janssen, Peter H.,Attwood, Graeme T.,Lin, Bo,Zou, Caixia,Liang, Xianwei.

作者其他论文 更多>>

微信小程序