水中阴离子合成洗涤剂的连续流动法测定与验证

Determination and Verification of Anionic Synthetic Detergent in Water by Continuous Flow Method

采用连续流动法测定生活饮用水、管网水、地表水中阴离子合成洗涤剂。结果表明,在0~1.000 mg/L内,阴离子合成洗涤剂标准曲线的线性相关系数在0.999以上,测定下限为0.040 mg/L,精密度为1.8%~8.4%,加标回收率为86.9%~124%。该方法操作简便、快速准确,可满足水中阴离子合成洗涤剂的检测要求,为水质监测和环境保护提供有力的技术支持。

The anion synthetic detergent in drinking water,pipe network water and surface water was determined by continuous flow method.The results show that the linear correlation coefficient of the standard curve of anionic synthetic detergent is above 0.999 in the range of 0-1.000 mg/L.The detection limit of anionic synthetic detergent is 0.040 mg/L,the precision is 1.8%-8.4%,and the spiked recovery rate is 86.9%-124%.The method is simple,rapid and accurate,and can meet the detection requirements of anionic synthetic detergents in water.