离子色谱紫外检测法同时测定水中5种氯酚类化合物  

The Simultaneous Determination of 5 Chlorophenols in Water Samples by Ion-chromatography with UV Detection Method

作　　者：张婧婧[1] 张昊[1] 霍宗利[1] ZHANG Jing-jing;ZHANG Hao;HUO Zong-Li(Jiangsu Provincial Center for Disease Control and Prevention,Nanjing,Jiangsu 210009,China)

机构地区：[1]江苏省疾病预防控制中心,江苏南京210009

出　　处：《环境监控与预警》2022年第6期43-45,81,共4页Environmental Monitoring and Forewarning

基　　金：江苏省青年医学人才基金资助项目(QNRC2016543)。

摘　　要：建立了同时测定水中5种氯酚类化合物的离子色谱紫外检测法。水样经0.45μm水相针式滤器过滤后,以250 nm为检测波长,5%的氨水甲醇-1%的硫酸铵溶液(V∶V=80∶20)为流动相进行检测。结果表明,在2-氯酚质量浓度为0.1~1.6 mg/L,其余4种氯酚质量浓度为0.01~0.16 mg/L范围内,线性相关系数均>0.999;2-氯酚和2,4-二氯酚的检出限分别为0.03和0.004 mg/L,其余3种氯酚的检出限为0.003 mg/L。低、中、高3种加标浓度样品的加标回收率为94.1%~100.8%,相对标准偏差(RSD)为2.5%~9.9%。该方法前处理简单,灵敏度、准确度和精密度均较好,适用于基层检测机构对生活饮用水中5种氯酚类化合物的日常快速检测。An ion-chromatography with UV detection method was established for simultaneous determination of 5 chlorophenols in water samples.The water sample was filtered through a 0.45μm aqueous phase syringe filter,the detection wavelength was set by 250 nm,and the mobile phase was a mixed solution of 5%ammonia in methanol and 1%ammonium sulfate solution in a volume ratio of 80∶20.The results showed that when the concentration of 2-chlorophenol was in the range of 0.1~1.6 mg/L,and the other four chlorophenols in the range of 0.01~0.16 mg/L,the linear correlation coefficients were all greater than 0.999.The detection limits of 2-chlorophenol and 2,4-dichlorophenol were 0.03 and 0.004 mg/L respectively.The detection limit of the remaining three chlorophenols was 0.003 mg/L.The recovery rates of standard addition at low,medium and high concentration level were in the range of 94.1%~100.8%,with the relevant standard deviations(RSD)ranged from 2.5%to 9.9%.With simple pretreatment,the method showed high sensitivity,good accuracy and precision,is suitable for daily fast determination of five chlorophenol compounds in drinking water samples.

关 键 词：离子色谱紫外检测法 氯酚类化合物 过滤 

分 类 号：X832[环境科学与工程—环境工程]