吹扫捕集/气相色谱-质谱联用仪测定饮用水水源地中的1,3-丁二烯和1-溴丙烷
Determination of 1,3-butadiene and 1-bromopropane in drinking water source by purge-trap/gas chromatography-mass spectrometry
董凤娟 1黄现统 1张凤菊 2许昶磊 3黄平1
作者信息
- 1. 山东省枣庄生态环境监测中心,山东 枣庄 277000
- 2. 山东省生态环境监测中心,济南 250101
- 3. 枣庄市环境保护科学研究所有限公司,山东 枣庄 277000
- 折叠
摘要
使用吹扫捕集/气相色谱-质谱联用仪,采用SIM扫描模式对饮用水水源地中的1,3-丁二烯、1-溴丙烷进行了测定,并进行了方法学考察.结果表明,2种物质的线性范围良好,1,3-丁二烯、1-溴丙烷的相关系数分别为0.999 9、0.998 0;检出限分别为0.2和0.3 μg/L,定量限分别为0.8和1.2 μg/L;高、中、低3个浓度的相对标准偏差在2.6％～7.6％之间;高、中、低3个浓度实际样品的加标回收率在84.0％～122％范围内;替代物的加标回收率在70.4％～103％之间.该方法在本实验室具有较低的检出限、良好的线性和精密度、较高的正确度.
Abstract
1,3-butadiene and 1-bromopropane in drinking water source were determinated by purge-trap/gas chromatography-mass spectrometry using the mode of SIM,and the methodology of this method was investi-gated.The results showed that,the linear range of the two pollutants was good,the correlation coefficients of 1,3-butadiene and 1-bromopropane were 0.999 9 and 0.998 0 respectively;the detection limits were 0.2 and 0.3 μg/L respectively,and the quantitative limits were 0.8 and 1.2 μg/L respectively.The relative standard deviations(RSD)of accuracy of high,middle and low concentrations were between 2.6％to 7.6％;and the standard recovery rates of the actual samples with high,middle and low concentrations ranged from 84％to 122％;while the stan-dard recovery rates of the substitutes were 70.4％-103％.It showed that,the method has low detection limits,good linearity and precision,and high accuracy.
关键词
吹扫捕集/气相色谱-质谱联用仪/1,3-丁二烯/1-溴丙烷/饮用水水源地/精密度/加标回收率Key words
purge-trap/gas chromatography-mas spectrometry/1,3-butadiene/1-bromopropane/drinking water sources/precision/standard recovery rate引用本文复制引用
出版年
2024
NETL
NSTL
万方数据