高碘酸钾氧化-全差示光度法测定水中痕量锰  

Potassiun Periodate Oxidation to Measure the Trace Manganese Contents in Water Using Completely Differential Spectrophotometry Method,

作　　者：宋薇 赵钦勋 杨志敏 

机构地区：[1]青岛市城阳区环境监测站,山东青岛266100 [2]胶州市环境监测站,山东胶州266300

出　　处：《农业环境与发展》2000年第1期45-46,共2页Agro-Environment and Development

摘　　要：探讨和试验了高碘酸钾氧化—全差示光度法测定水中锰。与原方法 (高碘酸钾氧化光度法 )相比较 ,提高了灵敏度 ,精密度与准确度较好。方法相对标准偏差为 0 .8%～ 4.8% ;加标回收率为 96 %～ 1 0 6 % ,最低检出限为 0 .0 0 4mg/L。It was studied on detection of manganese content in water by the completely differential spectrophotometry. The result showed that the new method significantly improved sensitivity and precision in comparison with the original method, the potassium-periodate method. The new method gave the relative standard deviation of 0.8%-4.8%, the recovery of 96%-106%, and the lowest limit of detection of 0.004 mg/L.

关 键 词：全差示光度法 高碘酸钾 水质监测 锰 

分 类 号：X832.02[环境科学与工程—环境工程]