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目的建立饮用水中呋喃丹和甲萘威的固相萃取-液相色谱柱后衍生的检测方法。方法采用固相萃取技术,水样经Waters Oasis HLB柱富集,高效液相色谱柱分离,柱后衍生荧光测定,外标法定量。结果该方法的检测限为0.05μg/L,相关系数r>0.9999。平均回收率在:89%~98%,相对标准偏差在1.5%~2.3%。结论方法灵敏度高、操作简单、定量准确、测定浓度范围宽阔,是环境水质样品中呋喃丹和甲萘威含量检测的理想方法。
Objective To establish a method for the determination of carbofuran and carbaryl in drinking water by solid phase extraction followed by liquid column derivatization. Methods Solid phase extraction (SPE) was used. The water sample was concentrated on a Waters Oasis HLB column, separated by high performance liquid chromatography (HPLC), post-column derivatized fluorescence and quantified by external standard method. Results The detection limit of this method was 0.05 μg / L with correlation coefficient r> 0.9999. The average recoveries ranged from 89% to 98% with relative standard deviations between 1.5% and 2.3%. Conclusion The method has the advantages of high sensitivity, simple operation, accurate quantitation and broad determination of concentration. It is an ideal method for the determination of carbofuran and carbaryl in environmental water samples.