| 内积在溶液浓度测定中的应用 |
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| 引用本文： | 吴雪梅,杨晓慧,娄珀瑜.内积在溶液浓度测定中的应用[J].光谱实验室,2009,26(4):1032-1034. |
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| 作者姓名： | 吴雪梅 杨晓慧 娄珀瑜 |
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| 作者单位： | 西安文理学院化学系,西安市太白南路168号,710065 |
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| 基金项目： | 西安文理学院专业技术人员科研资助项目 |
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| 摘 要： | 提出内积的溶液浓度测定方法。该方法计算已知浓度溶液透光率曲线与0号溶液（浓度最低的溶液）透光率曲线的内积ρ,确定溶液的ρ-C曲线,然后测定未知溶液的透光率曲线,计算其与0号溶液透光率曲线的内积,并利用已建立好的ρ-C曲线进行插值以估计溶液浓度。由于该方法利用了透光率曲线的全部信息,因此对溶液浓度的估计精度较高。对K2Cr2O7溶液浓度的测定实验结果表明,该方法对溶液浓度的估计相对误差小于1.00%。
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| 关 键 词： | 浓度 内积 ρ-C曲线 插值 |
Application of Inner Product to Determination of Concentration |
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| WU Xue-Mei,YANG Xiao-Hui,LOU Po-Yu.Application of Inner Product to Determination of Concentration[J].Chinese Journal of Spectroscopy Laboratory,2009,26(4):1032-1034. |
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| Authors: | WU Xue-Mei YANG Xiao-Hui LOU Po-Yu |
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| Institution: | (Department of Chemistry, Xi＇an University of Arts and Science, Xi＇an 71006,5,P. R. China) |
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| Abstract: | Method of concentration determination based on inner product is proposed.The method is described as follows.Firstly,calculate the inner product of the known and the No.0 solution s transmittance curve. Secondly,determine ρ-C curve of the solution.Thirdly,measure the transmittance curve of unknown solution and calculate it s inner product with No.0 solution s transmittance curve.Lastly,make interpolation and estimate the concentration according to the ρ—C curve.The estimation accuracy is good due to applicat... |
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| Keywords: | Concentration Inner Product ρ-C Curve Interpolation |
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