吹扫-捕集GC/MSD测定环境水中痕量苯酚的研究  

Determination of Trace Phenol in Environment Water Using Purge & Trap-GC/MSD

作　　者：刘玲 许健 王坚 谢淼戎 钟平生 

机构地区：[1]广州市白云区环境监测站,广东广州510405

出　　处：《广东化工》2005年第4期44-45,共2页Guangdong Chemical Industry

摘　　要：应用在线吹扫-捕集/气相色谱-质谱法建立一个测定环境水中苯酚的新方法。应用吹扫-捕集对环境水中苯酚进行提取和浓缩,基本不需要样品前处理步骤,方法非常快速简单,且准确度和精密度很好。当取水样体积为5mL时, 方法的检出限为0. 0001mg/L。加标浓度在0. 002mg/L时,平均回收率为92. 43%,相对标准偏差为7. 68%。A very simple and sensitive method based on online purge & trap and gas chromatography with mass selected detector is studied to determine phenol in environment water. Sample preparation isn't necessary with this method. So, the analytical process is very simple and fast. Further more, the accuracy is very satisfied with low relative standard deviation. The detection limit of phenol is 0.0001mg/L when the volume of water sample is 5mL. The average recovery is 92.43% and the relative standard deviation is 7.68% when the fortified level of phenol is 0.002mg/L.

关 键 词：吹扫-捕集 环境水 苯酚 测定 MSD 气相色谱-质谱法 痕量 GC 相对标准偏差 平均回收率 处理步骤 精密度 准确度 检出限 应用 浓缩 

分 类 号：TQ243.12[化学工程—有机化工] TU991.21[建筑科学—市政工程]