摘要
目的建立生活饮用水中一氯硝基甲烷、二氯硝基甲烷和三氯硝基甲烷的吹脱捕集-气质联用分析方法。方法 2017年5月,采集了辖区内出厂水和管网水,采用吹脱捕集法富集水中的一氯硝基甲烷、二氯硝基甲烷和三氯硝基甲烷,热脱附后使用气质联用法分离测定,选择特征离子与内标物进行定量。结果方法中一氯硝基甲烷和二氯硝基甲烷线性范围0. 1～1. 0μg/L,三氯硝基甲烷线性范围1～10μg/L,相关系数均> 0. 995。方法加标回收率为70. 39%～98. 89%,相对标准偏差3. 72%～7. 29%。结论方法具有灵敏度高、操作简单、线性范围宽、定性能力强等优点,适用于饮用水中一氯硝基甲烷、二氯硝基甲烷和三氯硝基甲烷的检测。
Objective To established determine Chloronitromethane, Dichloronitromethane ｜ and Nitrotrichloromethane in drinking-water by p＆t-gcms Methods Finished and pipe water samples were collected from local area in May of 2017 The CNM, DCNM and TCNM in water were purged-trapped, then desorbed and analyzed by gcms Selective ion masses were used in quantitative measurement Results The linear ranges of the calibration curves for CNM, DCNM and TCNM were 0. 1 - 1μg / L, 0. 1 - 1μg / L,1 - 10μg / L The average recoveries of CNM, DCNM and TCNM in drinking-water ranged from 70. 39% to 98. 89%, and the relativestandard deviations were 3, 72% - 7, 29% Conclusion The method is applicable to the determination of CNM, DCNM and TCNM in drinking water with the advantages of simple,low detection limit and good reproducibility
作者
奚晔
于娟
赵宜静
郝莉鹏
詹铭
XI Ye;YU Juan;ZHAO Yijing;HAO Lipeng;ZHAN Ming(Pudong Centre for Disease Control and Previention,Pudong Preventive Medicin Reseach Institue of Fuan University,Shanghai 200136,China)
出处
《公共卫生与预防医学》
2018年第5期108-110,共3页
Journal of Public Health and Preventive Medicine
基金
上海浦东新区科技发展基金资助(PKJ2015-Y61)
关键词
氯代硝基甲烷
消毒副产物
饮用水
吹脱捕集-气质联用
Chloronitromethane
Dichloronitromethane ｜
Nitrotrichloromethane
Drinkring-water
p＆t GC - MS
