高等学校化学学报 ›› 1986, Vol. 7 ›› Issue (11): 986.

• 研究简报 • 上一篇    下一篇

2-巯基-β-萘并噻唑萃取分光光度法快速测定微量钯

樊少英, 王建华, 赵明仁, 王慧琴, 杨文中   

  1. 西北大学化学系
  • 收稿日期:1985-06-05 出版日期:1986-11-24 发布日期:1986-11-24

The Extraction Spectrophotometric Determination of Palladium with2-Mercapto-β-Naphthothiazole (MNT)

Fan Shaoying, Wang Jianhua, Zhao Mingren, Wang Huiqin, Yang Wenzhong   

  1. Department of Chemistry, Northwest Univ., Xi'an
  • Received:1985-06-05 Online:1986-11-24 Published:1986-11-24

摘要: 铂族金属的分析是很复杂的,A.Diamantatos等曾报导了应用2-硫基苯并噻唑(MBT)分离和测定铂族元素。MBT与铂族元素的反应虽有较高的灵敏度,但所形成的内络合物Pd(C7H4S2N)2不易被有机溶剂萃取,因而使它在比色分析中的应用受到限制。

Abstract: Amethod for the solvent extraetion-spectrophotometric determination of palladium with 2-mercapto-β-naphthothiazole(MNT)has been studied.The complex in acidic solutions,palladium(Ⅱ)reacts with MNTto form a complex which can be extracted into organic solvent phase,benzene and so on.The absorption maximum of the palladium complex in benzene was found at 440nm with apparent molar absorption coefficient of l.01×104 mol-1cm-1.The complex can be quantitatively extracted with benzene from the range of pH0~3,but not from alkaline solution.Beer's law is confirmed over the range of 0~100μg of palladium in10 ml of benzene.

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