本文基于应用《生活饮用水标准检验法》中氟试剂分光光度法测定批量水样,氟检出率低的现象,查阅了有关文献。对《生活饮用水标准检验法》及《生活饮用水水质检验法》(二版)两书中的氟试剂比色法进行了对比实验。探讨了氟试剂、硝酸镧溶液两试剂的比例浓度对方法的精密的影响。 1 实验结果:两种不同浓度比试剂溶液(氟试剂、硝酸镧溶液),对同浓度的标淮溶液、同 This article based on the application of “drinking water standard test method” fluorine reagent spectrophotometric determination of bulk water samples, fluorine detection rate is low, access to the literature. The comparative test of the fluorine reagent colorimetric method in “Standard Test Method of Domestic Drinking Water” and “Domestic Drinking Water Quality Test Method” (Second Edition). The precise influence of the ratio of the two reagents, such as fluorine reagent and lanthanum nitrate solution, on the method was discussed. 1 Experimental results: two different concentrations of reagent solution (fluorine reagent, lanthanum nitrate solution), with the same concentration of the standard solution, the same