原文由 shih20j07(shih20j07) 发表:是总铅,
得出的应该是总铅,听说过,我没有做过
原文由 fenshuajiang(fenshuajiang) 发表:原文由 shih20j07(shih20j07) 发表:是总铅,
得出的应该是总铅,听说过,我没有做过
国际标准是这样的:To 12 ml of solution S1, add 2 ml of pH 3,5 buffer solution (E.2.3). Mix and add to 1,2 ml of thioacetamide
reagent (E.2.2). Mix immediately. Prepare a reference solution in the same manner by mixing 10 ml of
standard lead solution (E.2.1), as prescribed, and 2 ml of solution S1.
这个感觉不准确啊,参照溶液配制时应该不用加入2ml solution S1啊,为什么要加入? 是我理解有误吗
原文由 fenshuajiang(fenshuajiang) 发表:原文由 shih20j07(shih20j07) 发表:是总铅,
得出的应该是总铅,听说过,我没有做过
国际标准是这样的:To 12 ml of solution S1, add 2 ml of pH 3,5 buffer solution (E.2.3). Mix and add to 1,2 ml of thioacetamide
reagent (E.2.2). Mix immediately. Prepare a reference solution in the same manner by mixing 10 ml of
standard lead solution (E.2.1), as prescribed, and 2 ml of solution S1.
这个感觉不准确啊,参照溶液配制时应该不用加入2ml solution S1啊,为什么要加入? 是我理解有误吗
原文由 fenshuajiang(fenshuajiang) 发表:原文由 shih20j07(shih20j07) 发表:是总铅,
得出的应该是总铅,听说过,我没有做过
国际标准是这样的:To 12 ml of solution S1, add 2 ml of pH 3,5 buffer solution (E.2.3). Mix and add to 1,2 ml of thioacetamide
reagent (E.2.2). Mix immediately. Prepare a reference solution in the same manner by mixing 10 ml of
standard lead solution (E.2.1), as prescribed, and 2 ml of solution S1.
这个感觉不准确啊,参照溶液配制时应该不用加入2ml solution S1啊,为什么要加入? 是我理解有误吗