【摘要】 主要对氢氧化锌共沉淀硫化锌后 ,使用滤膜收集沉淀物 ,再用亚甲兰比色法测定天然水中可溶性硫化物的方法及条件进行了讨论与验证。实验数据表明该方法具有回收率好 ,灵敏度高 ,检出限低的特点。更多还原

【Abstract】 The paper discusses and validates the conditions of determining soluble sulphide in natural water by paraaminodimethyl aniline photometric method, which is used after zinc hydroxide coprecipitate to zinc sulfate, which are collected by filter membrane. The experimental date show the characters of high recovery ratio, high susceptivity, and low analysis limit by this method更多还原