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化学学报
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化学学报 ›› 1963, Vol. 29 ›› Issue (6): 421-425. 上一篇    下一篇

论文

鉑族元素的分析Ⅰ.鉑族元素的纸层析及金的测定

高家隆1, 張秀华2   

  1. 1. 兰州大学化学系;
    2. 北京冶金建筑研究院
  • 投稿日期:1962-11-01 发布日期:2013-06-03

ANALYSIS OF THE PLATINUM METALS Ⅰ. SEPARATION OF THE PLATINUM METALS AND ESTIMATION OF GOLD BY PAPER CHROMATOGRAPHY

KAO CHIA-LUNG1, CHANG SIU-HUA2   

  1. Department of Chemistry, Lanchow University
  • Received:1962-11-01 Published:2013-06-03

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526

被引次数

3

两种紙上层析展开剂:Ⅰ.庚酮-2～浓盐酸(70:30V/V);Ⅱ.苯乙酮-丙酮-浓盐酸(50:20:30V/V/V)。用于鉑族元素(包括金和銀)的层析,結果良好。能分离若干鉑族混合物。分别研究二十三种常見金属离子在所述展开剂中的层析行为和氯离子、硝酸根、硫酸根、磷酸根和高氯酸根对鉑族层析的影响。制定不經預先分离的紙上层析直接比色测定阳极泥中金的快速法。可测定少至0.06微克金(1厘米寬紙条)、相对誤差为±10%。

In this paper two solvent systems for the paper chromatographic separation of platinum metals and estimation of gold are studied:Ⅰ.Methyl n-amyl ketone-hydrochloric acid (sp.gr.1.19) [70:30 (V/V)];Ⅱ.Acetophenone-acetone-hydrochloric acid (sp.gr.1.19) [50:20:30 (V/V/V)].These two solvents are excellent for the separation of chloride mixtures of the platinum metals (including gold and silver),such as Au-Pt-Pd-Rh,Au-Ru-Pd-Rh,Au-Pt-Pd-Ir and Au-Ir-Pt-Pd-Rh,etc.Ascending technique was used.The paper chromatographic behaviours of 23 metallic ions and the influence of chloride,nitrate,sulphate,phosphate and perchlorate ions on the development of the platinum metals spots have also been examined in connexion with solvents Ⅰ and Ⅱ.A convenient and rapid method for the determination of gold in electrolytic slime has been devised.The results obtained with the procedure are quite satisfactory.As little as 0.06 μg of gold can be determined with 1 cm wide paper strip,and the relative error is not greater than ±10%.