锌的络合滴定,对其干扰元素,特别是铅的干扰消除问题,是该法能否快速的关键。本法在低铅试样中于氨性氯化铵介质加入碳酸钠在高铅试样中加碳酸钠和钨酸钠,一次沉淀分离铅、铁、铝、锰,滤液用硫酸调节酸度后进行络合滴定。分析结果与经典黄血盐法(高含量部分)、氨性底液极谱法(低含量部分)比较, Complexometric titration of zinc, interference with its interference elements, especially the elimination of lead interference problem, whether the law can quickly key. This method in the low lead sample ammonia ammonium chloride medium added sodium carbonate in the lead sample added sodium carbonate and sodium tungstate, a precipitation of lead, iron, aluminum, manganese, the filtrate with sulfuric acid to adjust the acidity Complexometric titration. The results of the analysis were compared with those of classical yellow blood salt method (high content fraction) and ammoniacal bottom solution polarography method (low content fraction)