水中锰测定方法的探讨

• 作 者: 张春明 杜秀玲 王毅敏
• 机 构: 辽宁省卫生防疫站,辽宁省卫生防疫站,辽宁省卫生防疫站
• 出 处: 中国公共卫生
• 发表日期: 1985年04期
• 关键词: 过硫酸铵法 过碘酸钾 过硫酸铵 水质检验 色阶 碘酸钾法 煮沸时间 硫酸按 高碘酸 比色杯

水中锰的测定方法,近年来日、美等国,几无例外地选用过硫酸铵及过碘酸钾两法。在国内大部分水质检验方法专著中也无不首推此二法,我国《生活饮用水水质检验方法》中也统一规定为过硫酸铵法;但本法在应用过程中常因主要试剂不甚稳定而出现反常现象,较多见的是色阶跳跃,呈色不稳,甚至不显色等弊病,重现性不好。为此我们参考国内外现行方法,

Determination of manganese in water, in recent years Japan, the United States and other countries, almost without exception, the choice of ammonium persulfate and potassium iodate two methods. Most of the domestic water quality test monographs are also the most important of these two laws, China’s “drinking water quality test methods” are also uniform provisions for the ammonium persulfate method; However, the law in the application process often unstable because of the main reagents Anomalies occur, the more common is the color jump, color instability, or even color and other ills, reproducibility is not good. To this end we refer to the current methods at home and abroad,