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依据《生活饮用水卫生规范》中的检验方法 ,运用分光光度法对饮用水中锡的含量进行测定 ,发现该方法存在一些问题 ,根据实际情况对该法进行适当改进 ,具体方法探讨如下。1 试剂1.1 氨水 (1+1)。1.2 硫酸溶液 (1+9)。1.3 抗坏血酸溶液 (10 g/L) :称取 10 g抗坏血酸于适量纯?
According to the test method in “Hygienic Standard for Drinking-water”, the content of tin in drinking water was determined by spectrophotometry. The method was found to have some problems, and the method was appropriately improved according to the actual situation. The specific methods are discussed as follows. 1 Reagents 1.1 Ammonia (1 + 1). 1.2 sulfuric acid solution (1 +9). Ascorbic acid solution (10 g / L): Weigh 10 g of ascorbic acid in a suitable amount of pure?