| 速差催化动力学光度法同时测定痕量PO_4~(3-)和AsO_4~(3-) |
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| 引用本文： | 刘绣华,张霞.速差催化动力学光度法同时测定痕量PO_4~(3-)和AsO_4~(3-)[J].化学研究,1997(4). |
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| 作者姓名： | 刘绣华 张霞 |
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| 作者单位： | 河南大学化学化工学院!开封，475001，河南省医药学校!开封，475000 |
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| 摘 要： | 首次基于和对Zr（Ⅳ）－MTB－CTMAB及Zr（Ⅳ）－MTB－CTMAB－LA体系不同的催化作用，建立了同时测量痕量和的速差催化动力学光度分析法。研究了24种共存离子的影响。对与质量比为1～7的标准混合样品进行了测定，相对误差小于10％。
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| 关 键 词： | 速差催化动力学 同时测定 PO~(3-)_4和AsO~(3-)_4 |
Kinetic Catalytic Diffirential Rate Method for the Simultaneous Determination |
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| of Trace Phosphate and Arsenate Liu Xiuhua.Kinetic Catalytic Diffirential Rate Method for the Simultaneous Determination[J].Chemical Research,1997(4). |
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| Authors: | of Trace Phosphate and Arsenate Liu Xiuhua |
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| Abstract: | A new Rate Diffirential Kinetic Catalytic Photometry method for the simultaneous determination of trace PO and AsO has been proposed. It is based on the both reactions Zr (Ⅳ) + MTB(Methylthymol blue) + CTMAB(Cetyitrme thyl - ammonium broride)──→P and Zr (Ⅳ) + MTB + CTMAB + LA(Lactic acid)──→P Which be catalyzed by PO and AsO in diffirent degrees. Standard mixed samples with the weight proportion of WPSO /AsO 1 ~7 have been analyzed. Twenty - four interferent ions have been studied. |
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| Keywords: | kinetic catalytic differential rate method simultaneus derermination PO~(3-)_4 and AsO~(3-)_4 |
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