| 高锰酸盐指数测定的影响因素研究 |
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| 引用本文： | 余晓鹏,张付宝.高锰酸盐指数测定的影响因素研究[J].内蒙古环境科学,2008,20(3). |
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| 作者姓名： | 余晓鹏 张付宝 |
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| 作者单位： | 四川理工学院材料与化学工程系 |
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| 摘 要： | 采用正交实验设计法L9(34)考察高锰酸盐指数测定的影响因素,确定各因素的主次关系及最佳测定条件。结果表明,高锰酸钾浓度对高锰酸盐指数测定的影响程度最大,其次是加热时间及滴定时间,影响较小的是溶液的酸度。在最佳测定条件下:1+3硫酸、加热8min、60s内滴定、高锰酸钾浓度为0.0100mol/L,加标回收率为101%。
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| 关 键 词： | 高锰酸盐指数 测定 正交实验设计 影响因素 |
RESEARCH OF INFLUENTIAL FACTORS ON THE DETERMINATION OF PERMANGANATE INDEX |
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| YU Xiaopeng,ZHANG Fubao.RESEARCH OF INFLUENTIAL FACTORS ON THE DETERMINATION OF PERMANGANATE INDEX[J].Inner Mongolia Environmental Protection,2008,20(3). |
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| Authors: | YU Xiaopeng ZHANG Fubao |
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| Institution: | YU Xiaopeng ZHANG Fubao (Material & Chemical Engineering Department; Sichuan University of Science & Engineering; Zigong 543000; China); |
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| Abstract: | Adopting orthogonal design method L9 (34),influential factors on the determination of permanganate index were investiga- ted,and the orders of factors and the optimum conditions of determination were obtained.The results showed that the orders of effect on accu- racy of permanganate index,as follows:to begin with potassium permanganate concentration,then heating time,furthermore time of titration, finally is solution acidity.Under the optimal conditions which the concentration of sulfuric acid is 1:3,the he... |
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| Keywords: | permanganate index determination orthogonal design influential factors |
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