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化学学报
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化学学报 ›› 1957, Vol. 23 ›› Issue (4): 250-254. 上一篇    下一篇

论文

有機陽離子用作分析試劑的研究Ⅰ.碘化(N,N-二甲基)氫化吡啶鹽用作钯的定性分析試劑

容慶新, 王夔   

  1. 北京醫學院化學教研組
  • 投稿日期:1957-01-02 发布日期:2013-06-03

STUDIES ON THE APPLICATIONS OF ORGANIC CATIONS AS ANALYTICAL REAGENTS I.N, N-DIMETHYLPIPERIDINIUM IODIDE AS A REAGENT FOR PALLADOUS IONS

YUNG CH'ING-HSIN, WANG K'UEI   

  1. Department of Chemistry, Peking Medical College
  • Received:1957-01-02 Published:2013-06-03

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1.碘化(N,N-二甲基)氢化吡啶盐可以用作二价钯离子的定性分析试剂,灵敏度在点滴板上为0.2γ(1:200,000),在纸上为0.006γ(1:200.000)。2.铂离子与试剂生成类似的棕色沉淀,但可以用加入大量的磷酸根除去其干扰。铋和汞(Ⅱ)离子与试剂生成红色沉淀,但可以用加入浓盐酸以消除之。Ag+,Pb++,Cu++,Fe3+,Tl+,Sb3+的干扰比例限度及灵敏度也测定过。3.用点滴色层分析法,可以在包含二十五种阳离子(包括铋,汞(Ⅱ),铂(Ⅳ))的混合物中直接检出0.006γ(1:180,000)的钯(Ⅱ)离子,各离子对钯的浓度比例界限皆为1:50。

1. N, N-Dimethylpiperidinium iodide is recommended as a reage palladous ions. In neutral or acidic solution, it forms a black or brown precipitate with palladous ions deperding on the amount of the latter present.The sensitivity is 0.2 r (1:200,000) on the spot plate and 0.006 r(1:200,000) on the filter paper.