摘要
采用吹扫捕集-气相色谱-质谱（P＆T-GC-MS）法测定了海洋沉积物中挥发性有机物（VOCs）的含量，优化了吹扫条件。54种VOCs在4-40μg/L范围内具有良好的线性关系，浓度测量的相对标准偏差为2．67％。14．2％，VOCs的样品加标回收率多在87．0％-127％之间，栓出限为0．07-1、87μg/kg（干重）之间。该方法亦可应用于土壤中VOCs的测定。
Concentrations of volatile organic compounds （VOCs） in marine sediments were determined by using P＆T - GC - MS technique, upon optimization of the purging temperature. Good separation has been achieved for 54 VOCs and 4 surrogates with excellent linearity in the concentration range of 4 - 40 μg/L. The detection limits for the determination ranged from 0.07 μg/kg to 1.87 μg/kg （ based on dry weight） , with relative standard deviations of 2.67% - 14.2%. The recoveries were 87.0% - 127%, except for CCI4 whose recovery was 74.0%. The method is also applicable for analysis of VOCs in soil samples.
出处
《化学分析计量》
CAS
2006年第6期40-42,共3页
Chemical Analysis And Meterage
关键词
挥发性有机物
海洋沉积物
吹扫捕集
volatile organic compound, marine sediment, purge and trap
