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化学学报
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化学学报 ›› 1958, Vol. 24 ›› Issue (1): 42-46. 上一篇    下一篇

论文

5-氨基噻唑啉-2-硫代甲酰胺用作分析试剂——Ⅰ. 用做钯试剂的研究

田冰式, 王夔   

  1. 北京医学院化学教研组
  • 投稿日期:1957-07-10 发布日期:2013-06-03

5-AMINOTHIAZOLINETHIOCARBOXYLIC ACID-2-AMIDE USED AS ANALYTICAL REAGENT Ⅰ. DETECTION AND DETERMINATION OF PALLADIUM

T'IEN PING-SHIH, WANG K'UEI   

  1. Department of Chemistry, Peking Medical College
  • Received:1957-07-10 Published:2013-06-03

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503

被引次数

4

5-氨基噻唑啉-2-硫代甲酰胺可用作钯(Ⅱ)试剂.在中性溶液中生成棕红色沉淀, 在碱性溶液中生成姜黄色沉淀.检出限度0.003γ(1:1, 000, 000)(纸上点滴分析).在中性及弱酸性溶液中只CuⅡ、PtⅣ、FeⅢ、AgⅠ、HgⅡ及AuⅢ可能干扰.采用色层分析可在上述干扰离子存在下检出钯(Ⅱ).在pH3—5形成红色溶液;pH6—8生成沉淀;pH>9沉淀又渐溶, 溶液变黄.在pH=4时试剂与钯(Ⅱ)的作用比为3:2.钯浓度在0.3—0.8毫克/10毫升之间时, 符合Beer-Lambert定律.用该化合物又可做钯的重量分析.

5-Aminothiazolinethiocarboxylic acid-2-amide may be used as a reagent for palladium(Ⅱ).The identification limit was found to be 0.003 γ(1:1, 000, 000), when the detection was carried out on paper with neutral or weakly acidic solutions.Among 34 cations studied, only Cu(Ⅱ), Pt(Ⅳ), Fe(Ⅲ), Ag(Ⅰ), Au(Ⅲ) and Hg(Ⅱ)interfered in neutral or weakly acidic solution.If spot chromatographic method or paper chromatographic method were used, Pd(Ⅱ) may be detected in the presence of considerable amount of those interfering cations.