| 流动注射分析光度法测定过氧化氢 |
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| 引用本文： | 周增柟,陈健,范小芹,李芳.流动注射分析光度法测定过氧化氢[J].东华大学学报(自然科学版),1990(2). |
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| 作者姓名： | 周增柟 陈健 范小芹 李芳 |
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| 作者单位： | 中国纺织大学纺织化学工程系分析化学教研室，中国纺织大学纺织化学工程系分析化学教研室，中国纺织大学纺织化学工程系分析化学教研室，中国纺织大学纺织化学工程系分析化学教研室 |
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| 摘 要： | 流动注射分析法已发展成为一个很好的分析手段和一种很有用的测定方法。本文讨论应用碘量法来进行流动分析测试。用H_2SO_4和KI与H_2O_2反应,在420nm处测其吸光度。每个试样均有重现形状的单峰出现。在进样后30 s就可读出数据。其最低检出限量为1μg,工作曲线呈现极好的重现性。所得结果稳定,其相关系数超过0.9993,与KMnO_4法相比,其相对误差小于2.5％。同时,对某些分析条件,诸如H_2SO_4和KI的流速、样品用量、反应管长等因素进行了探讨。
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| 关 键 词： | 分光光度法 碘量法 过氧化氢 流动注射分析 |
DETERMINATION OF H_2O_2 WITH FIA AND SPECTROPHOTOMETRY |
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| Zhou Zengnan,Chen Jian,Fan Xiaoqin,Li Fang.DETERMINATION OF H_2O_2 WITH FIA AND SPECTROPHOTOMETRY[J].Journal of Donghua University,1990(2). |
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| Authors: | Zhou Zengnan Chen Jian Fan Xiaoqin Li Fang |
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| Institution: | Department of Textile Chemical Engineering |
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| Abstract: | This paper deals with a theoretical method to determine the amount of crowning. The distribution of contact stresses on the flanks of a crowned pinion and a gear are treated as a series of complete or partial semi-ellipsoids of the same geometric parameters, the total volume of which equals the whole contact load. From this point of view a series of equations for the computation of the maximum stress are obtained. The calculation of contact stresses considering the existence of alignment errors will thus be very helpful to the selection of a proper amount of crowning for gear drives. |
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| Keywords: | spectrophotometry iodometry hydroperoxide flow injection analysis |
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