摘要
建立了车载顶空-气相色谱质谱法(GC/MS)测定水中22种挥发性有机物(VOCs)的方法,顶空平衡温度和平衡时间的最优设置分别为80℃和30 min。该方法各目标化合物分离良好,在目标化合物质量浓度5~100μg/L范围内,线性良好,相关系数均>0.995,方法的检出限为1.16~2.88μg/L,RSD为7.71%~26.5%,加标回收率为52.3%~129%,能够满足应急监测工作的需要。
The method for vehicle headspace-gas chromatography and mass spectrometry（GC/MS） were established to analyze 22 kinds of volatile organic compounds （VOCs） in water. Under the optimal conditions, good linearities were obtained in the range of 5 - 100μg/L with correlation coefficients greater than 0. 995. The limits were 1.16 - 2.88μg/L. The relative standard deviations ranged from 7.71% to 26.5% , and the recoveries were 52.3% - 129% . The results showed that the current method could satisfy the demand of emergency monitoring.
出处
《环境监控与预警》
2017年第2期27-30,共4页
Environmental Monitoring and Forewarning
