| 等吸收点—多波长线性回归—导数分光光度法同时测定重油中的铜,镍,锌 |
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| 引用本文： | 马波 刘立行. 等吸收点—多波长线性回归—导数分光光度法同时测定重油中的铜,镍,锌[J]. 分析化学, 1994, 22(10): 1033-1036 |
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| 作者姓名： | 马波 刘立行 |
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| 作者单位： | 抚顺石油学院应用化学系 抚顺113001 |
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| 摘 要： | 本文提出了一种同时测定多组分的新方法，即等吸收点－多波长线性回归－导数分光光度法。利用金属离子－５－Ｂｒ－ＰＡＤＡＰ－ＣＰＢ三元络合显色体素，同时测定了重油中的铜、镍、锌，相对标准偏差小于２．６％，分析结果与ＩＣＰ－ＡＥＳ及ＧＦ－ＡＡＳ法吻合。与常规分光光度法比较，灵敏度提高１０倍左右。
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| 关 键 词： | 导数光度法 重油 铜 镍 锌 |
Simultaneous Determination of Copper,Nickel and Zinc in Heavy Oil Sample by the Equal Absorption Point-Multi-wavelength Linear Regression-Derivative Spectrophotometry |
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| Ma Bo,Liu Lihang,Xu Yongye. Simultaneous Determination of Copper,Nickel and Zinc in Heavy Oil Sample by the Equal Absorption Point-Multi-wavelength Linear Regression-Derivative Spectrophotometry[J]. Chinese Journal of Analytical Chemistry, 1994, 22(10): 1033-1036 |
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| Authors: | Ma Bo Liu Lihang Xu Yongye |
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| Abstract: | A method for the simultaneous determination of multicomponent, that is, equal absorption point-multiwavelength linear regression-derivative spectrophotometry, has been developed. It has been used to determine Cu, Ni and Zn in heavy oil sample simultaneously by using the system of metal ions-5-Br PADAP-CPB. The relative standard derivation is less than 2. 6%,the experimental results agree with those obtained by ICP-AES and GF-AAS. The sensitivity of the derivative spectrophotometry is about 10 times higher than that of general spectrophotometry. |
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| Keywords: | Equal absorption point Multiwavelength linear regression Derivative spec- trophotometry Simultaneous determination Heavy oil Copper Nickel Zinc. |
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