顶空-固相微萃取-气质联用测定终端水异味物质  

Determination of odorous compounds in terminal water by headspace-solid phase microextraction-gas chromatography/mass spectrometry

作　　者：康娜 王正萍[1] 王红 Kang Na;Wang Zhengping;Wang Hong(Department of Environmental and Biological Engineering,Nanjing University ofScience and Technology,Nanjing 210094,China;Jiangsu Province Food Laboratory forEntry-Exit Inspection and Quarantine,Nanjing 210019,China)

机构地区：[1]南京理工大学环境与生物工程学院,江苏南京210094 [2]江苏省出入境检验检疫局食品实验室,江苏南京210019

出　　处：《工业水处理》2019年第4期89-92,112,共5页Industrial Water Treatment

摘　　要：采用顶空-固相微萃取-气质联用法(HS-SPME-GC/MS)检测终端水中的8种挥发性异味物质。为使萃取效率达到最大化,对主要因素进行优化分析。在优化条件下,8种物质的线性关系良好,相关系数均达到0.99,方法检出限为0.67～5.86 ng/L,相对标准偏差为1.29%～14.96%。去除终端水中的余氯可有效提高加标回收率,实际样品的加标回收率为79.55%～131.29%。研究显示此方法实用且有效,可用于终端水样中异味物质的检测。A headspace-solid phase microextraction-gas chromatography/mass spectrometry(HS-SPME-GC/MS)coupled method has been used for the detection of eight kinds of odorous and volatile compounds in terminal water.The main factors have been optimized and analyzed,so as to make the extraction efficiency reach the maximization.Under the optimized conditions,the linear relationship of the eight kinds of compounds are good,all correlation coefficients reach 99%,the detection limit of this method is 0.67-5.86 ng/L,and the relative standard deviation 1.29%-14.96%.Removing the residual chlorine from terminal water can effectively improve the recovery of standard addition.The recovery of standard addition of actual samples are 79.55%-131.29%.The research results show that the method is practical,effective,and can be applied to the detection of odorous compounds in terminal water samples.

关 键 词：顶空 固相微萃取 气质联用法 终端水 异味物质 

分 类 号：X703[环境科学与工程—环境工程]