在线萃取流动注射分光光度法测定消毒食(饮)具烷基苯磺酸钠残留量  

Determination of sodium alkylbenzene sulfonate residues in disinfected tableware by on-line extraction FI-spectrophotometry

作　　者：郝莉鹏 闵巍[1] 李宏亮[1] 

机构地区：[1]上海市浦东新区疾病预防控制中心,上海200136

出　　处：《中国卫生检验杂志》2012年第8期1772-1773,1776,共3页Chinese Journal of Health Laboratory Technology

基　　金：2011年上海市卫生局科研课题资助(20114070)

摘　　要：目的:建立在线萃取流动注射分光光度法测定食(饮)具烷基苯磺酸钠残留量的方法。方法:100 ml蒸馏水冲洗消毒后食(饮)具制成样液,用在线萃取流动注射分光光度法进行测定。结果:方法检出限1.7μg/100 cm2,烷基苯磺酸钠的浓度在0 mg/L～1.00 mg/L有良好的线性(相关系数0.9995),实际样品的加标回收率为92%～104%,相对标准偏差为3%～8.5%。结论:本方法操作简便,准确度、精密度好,对操作人员的危害小,适用于消毒食(饮)具中烷基苯磺酸钠残留量的批量检测。Objective：To establish on-line extraction FI-spectrophotometry for the determination of sodium alkylbenzene sulfonate residues in disinfected tableware.Methods：The disinfected tableware was rinsed by 100 ml distilled water to obtain the sample solution.Then the sample solution was determined by on-line extraction FI-spectrophotometry.Results：The detection limit was 1.7 μg/100 cm^2 with linear range of 0 mg/L～1.00 mg/L（r=0.9995）.The recoveries were 92%～104%,RSD=3%～8.5%.Conclusion：This method is simple,sensitive,accurate and safe for the determination of sodium alkylbenzene sulfonate residues in disinfected tableware.

关 键 词：在线萃取 流动注射分光光度法 烷基苯磺酸钠 

分 类 号：O657.32[理学—分析化学]