超高效液相色谱-串联质谱法同时测定水体中37种典型抗生素  

Determination of 37 Typical Antibiotics by Liquid Chromatography-Triple Quadrupole Mass Spectrometry

作　　者：营娇龙 秦晓鹏 郎杭 郭健一 熊玲 张占昊 刘菲[1] YING Jiaolong;QIN Xiaopeng;LANG Hang;GUO Jianyi;XIONG Ling;ZHANG Zhanhao;LIU Fei(Beijing Key Laboratory of Water Resources and Environmental Engineering,School of Water Resources and Environment,China University of Geosciences(Beijing),Beijing 100083,China;Technical Centre for Soil,Agricultural and Rural Ecology and Environment,Ministry of Ecology and Environment,Beijing 100012,China;China Institute of Water Resources and Hydropower Research,Beijing 100038,China;Yongding Middle School Affiliated to Capital Normal University,Beijing 102308,China)

机构地区：[1]中国地质大学(北京)水资源与环境学院,水资源与环境工程北京市重点实验室,北京100083 [2]生态环境部土壤与农业农村生态环境监管技术中心,北京100012 [3]中国水利水电科学研究院,北京100038 [4]首都师范大学附属中学永定分校,北京102308

出　　处：《岩矿测试》2022年第3期394-403,共10页Rock and Mineral Analysis

基　　金：国家自然科学基金重点基金“典型抗生素对地下水系统中反硝化过程的影响机理研究”(41731282);中国地质调查局地质调查项目“地下水中有机污染组分对补给方式的响应——水样测试分析质量控制”(DD20190323)。

摘　　要：目前抗生素的环境检出受到人们的广泛关注,但能够同时测试地表水和地下水中七大类抗生素的方法仍较为缺乏。本文采用超高效液相色谱-串联三重四极杆质谱法(UPLC-MS/MS),建立了同时测定地表水和地下水中磺胺类、四环素类、大环内酯类、喹诺酮类、氯霉素类、β-内酰胺类和其他类共七大类37种抗生素的分析方法。该方法对水中抗生素有较好的富集作用及灵敏度,检出限为0.6~10.6ng/L,基质加标回收率大多为60%~130%。采用本方法测定了北京市永定河地表水、潮白河地表水及潮白河流域地下水中的抗生素。结果表明:永定河地表水中以磺胺类、喹诺酮类和大环内酯类为主,检出率分别为88.9%、55.6%和33.3%,其中氧氟沙星的最大值为111.9ng/L;潮白河地表水中磺胺类、喹诺酮类和氯霉素类抗生素的检出率均为100%,其中替米考星的浓度高达71.6ng/L;潮白河流域地下水中以磺胺类、喹诺酮类和β-内酰胺类抗生素为主,检出率分别为66.7%、55.6%和22.2%,磺胺嘧啶的最大值为69.3ng/L。污水处理厂附近样品中抗生素的检出率及浓度均明显高于其他点位。本研究建立的方法简单、快速、准确,为地表水和地下水中的抗生素监测提供方法支撑,为水资源的合理利用及水中新污染物的治理提供了科学依据。BACKGROUND:Currently,the environmental detection of antibiotics is receiving extensive attention,but there is still a lack of methods that can simultaneously analyze seven categories of antibiotics in surface water and groundwater.OBJECTIVES:To establish a method that can detect thirty-seven antibiotics(15 sulfonamides,2 tetracyclines,3 macrolides,8 quinolones,2 chloramphenicols,2β-lactams and 5 other kinds)simultaneously.METHODS:Solid phase extraction coupled with ultra-performance liquid chromatography-triple quadrupole mass spectrometry(UPLC-MS/MS)was used to quantify the concentration of antibiotics.RESULTS:The method had good sensitivity and enrichment effect for the surface water and groundwater,the recoveries ranged from 60%to 130%,the detection limits ranged from 0.6 to 10.6ng/L.The method was applied to the determination of antibiotics in surface water of the Yongding and Chaobai Rivers,and groundwater of the Chaobai River in Beijing.Sulfonamides,quinolones and macrolides were the main antibiotics in the surface water of the Yongding River,and the detection rates were 88.9%,55.6%and 33.3%,respectively.The highest concentration of floxacin was 111.9ng/L.Sulfonamides,quinolones and chloramphenicols were the main antibiotics in the surface water of the Chaobai River with detection rates of 100%.The highest concentration of tilmicosin was 71.6ng/L.Sulfonamides,quinolones andβ-lactams antibiotics were the main antibiotics in the groundwater of the Chaobai River Basin,and the detection rates of were 66.7%,55.6%and 22.2%,respectively.The highest concentration of sulfadiazine was 69.3ng/L.In both surface water and groundwater,the detection rate and concentration near the sewage treatment plant were significantly higher than those at other points.CONCLUSIONS:The method established in this study is simple,rapid and accurate,which can be used for the simultaneous determination of 37 antibiotics in seven categories in surface water and groundwater.It provides antibiotic analysis method support for surface water an

关 键 词：抗生素 超高效液相色谱-串联三重四极杆质谱法 地下水 地表水 北京市 

分 类 号：O657.63[理学—分析化学]