摘要
文章系统研究了土壤中四乙基铅的吹扫捕集-气相色谱质谱测定方法,优化了吹扫捕集前处理条件参数.结果表明,吹扫时间13 min、吹扫温度60℃,脱附温度190℃,脱附时间1 min为最佳的吹扫捕集方法参数.校正曲线的线性关系良好,相关系数大于0.999,方法检出限为0.3μg/kg.采用该方法测定农田、公路两侧、加油站附近等3种不同类型的土壤样品并进行了加标回收实验,回收率范围为81.5％～108％.
This paper systematically studies of tetraethyl lead in soil by Purge and Trap-Gas chromatography-mass spectrometry method to optimize the purge and trap pretreatment parameters.The results showed that 13min purge time,purge temperature of 60 ℃,the analytical temperature of 190 ℃ resolution time 1 min best purge and trap method parameters,the calibration curve of a good linear relationship,correlation coefficient greater than 0.999,the detection limit The for0.3μ.g/kg.This method for the determination of the three different types of farms,road sides,gas stations near the soil samples were spiked recovery experiments,recoveries ranged from 81.5 to 108%.
出处
《中国环境监测》
CAS
CSCD
北大核心
2013年第6期113-116,共4页
Environmental Monitoring in China
