便携式GC-MS快速测定水中苯胺  

Fast Determination of Aniline in Water by the Portable GC-MS

作　　者：吕天峰[1] 王超[1] 滕恩江[1] 吕怡兵[1] 

机构地区：[1]中国环境监测总站,北京100012

出　　处：《环境监测管理与技术》2013年第6期34-36,共3页The Administration and Technique of Environmental Monitoring

摘　　要：采用便携式GC-MS测定水体中的苯胺,并对水样中离子强度和顶空分析的平衡时间进行优化。试验表明,苯胺在10.0μg/L～200μg/L范围内有较好的线性,r为0.998;方法检出限为5.8μg/L;回收率为92.8%～96.7%;RSD为3.2%～8.6%。用54种VOCs混合标样对苯胺标液进行干扰试验,结果试验条件下苯胺与VOCs得到有效分离。A new method for portable gas chromatography coupled with mass spectrometry （ GC-MS ） was established in order to analyze aniline in water .Ion intensity in water and equilibration time of head space were optimized.Experiments showed that this method possessed good linearity （ the aniline concentration was between 10 .0 μg/L and 200 μg/L ） , with the correlation coefficient 0 .998 .The method detection limit come to be 5.8 μg/L.The recoveries were between 92.8% and 96.7%, with the relative standard deviations between 3.2%and 8.6%.Interfere test was carried out for aniline standard solution by 54 kinds of VOCs mixed standard sample .Aniline and VOCs could be separated effectively .

关 键 词：苯胺 便携式气质联用仪 快速分析 水质 

分 类 号：O657.63[理学—分析化学]