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目的建立全自动流动注射仪测定生活饮用水中阴离子合成洗涤剂的分析方法。方法采用北京吉天FIA-6000+型全自动流动注射分析仪,在最佳的测试条件下,对水样中阴离子合成洗涤剂进行方法学试验。结果本法的线性范围0μg/L~1 000μg/L,相关系数为0.999 94,方法检测限为0.95μg/L,相对标准偏差0.31%~3.70%,加标回收率:97.2%~104.0%。结论该法操作简便、灵敏度高、检出限低、检测时间短,适用于实验室大批量样品的检测。
Objective To establish an automatic flow injection analyzer for determination of anionic synthetic detergent in drinking water. Methods The method was carried out by Beijing Jitian FIA-6000 + automatic flow injection analyzer under the best test conditions. Results The linear range of this method was 0μg / L ~ 1 000μg / L, the correlation coefficient was 0.999 94, the detection limit was 0.95μg / L, the relative standard deviation was 0.31% ~ 3.70%, and the recoveries were 97.2% ~ 104.0%. Conclusion The method is simple, high sensitivity, low detection limit, short detection time, suitable for the detection of large quantities of laboratory samples.