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化学学报
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化学学报 ›› 1958, Vol. 24 ›› Issue (3): 255-257. 上一篇    下一篇

论文

用丁二酮单肟对硝基苯腙作微量钴的比色测定

胡锡华, 吕余庆, 宋学梓, 居秉菁   

  1. 重庆医学院化学教研组
  • 投稿日期:1957-09-10 发布日期:2013-06-03

COLORIMETRIC DETERMINATION OF MICROGRAM QUANTITIES OF COBALT WITH p-NITROPHENYL-HYDRAZONE OF DIACETYLMONOXIME

HU HSI-HUA, LEU YU-CHENG, SOONG HSUEH-TZE, CHU PING-TSING   

  1. Department of Chemistry, Chungking Medical College
  • Received:1957-09-10 Published:2013-06-03

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在氨水、乙醇、醋酸铵存在下,以丁二酮单肟对硝基苯腙作钴的比色,在0—5γ钴/ml之间符合Beer定律。此法操作简便、迅速而再现性高。

The formation of a violet or pink colored complex of Co++ with p-nitro-phenylhydrazone of diacetylmonoxime in the presence of ammonium hydroxide was utilized in the colorimetric determination of microgram quantities of cobalt. Ammonium acetate, together with ethyl alcohol, was used to destroy the violet color developed by the interaction between ammonium hydroxide and the reagent.