| 磷酸三丁酯—钛—钽试剂第三相的形成与应用 |
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| 引用本文： | 赵进,王海舟.磷酸三丁酯—钛—钽试剂第三相的形成与应用[J].分析化学,1996,24(3):264-268. |
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| 作者姓名： | 赵进 王海舟 |
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| 作者单位： | 北京轻工业学院分析测试中心!北京100037(赵进)，北京科技大学化学系!北京100083(邵光玓)，冶金部钢铁研究总院!北京100081(王海舟) |
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| 摘 要： | 本文研究了强酸性介质中，磷酸三丁酯萃取体系（ＴＢＰ．ＨＡ）第三相的形成条件；探讨了ＴＢＰ．ＨＡ对钛的萃取行为；建立了ＨＣｌＯ４－Ｈ２ＳＯ４介质中，利用ＴＢＰ．ＨＡ第三相萃取，然后用ＩＣＰ－ＡＥＳ温室痕量钛的方法。结果表明，由于第三相体积小，对钛有较高的富集倍数，降低了分析的检出限，用ＩＣＰ－ＡＥＳ检测，可以消除基体及其他大部分元素对测定的干扰，测定钛的回收率在９７％－１０１％。利用本法对钢样标准物
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| 关 键 词： | 第三相 萃取 磷酸三丁酯 钛分析 ICP－AES |
Formation of the Third Phase of Tributyl Phosphate-N-Benzoyl-N-Phenylhydroxylamine and Its Application |
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| Zhao Jin.Formation of the Third Phase of Tributyl Phosphate-N-Benzoyl-N-Phenylhydroxylamine and Its Application[J].Chinese Journal of Analytical Chemistry,1996,24(3):264-268. |
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| Authors: | Zhao Jin |
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| Abstract: | The formation condition of tributyl phosphate third phase in strong acid medium is investigated and the extraction of titanium is discussed. A method for determining trace ti tanium by ICP-AES is established after titanium is extracted by the third phase in HClO4-H2SO4 solution. Results show that the third phase can highly enrich titanium and the detec tion limit is lowered. The matrix interference can be eliminated by using ICP-AES. The re covery is 97%~ 101 %. Trace titanium (0. 0017%~0. 024 % ) in standard samples is deter mined in good agreement with certified values. |
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| Keywords: | Third phase extraction tributyl phosphate titanium |
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