化学学报 ›› 1959, Vol. 25 ›› Issue (6): 353-359.    下一篇

论文

2,6,7-三羟基咈咔衍生物用于锑的比色测定

陆明廉, 刘大椿, 严怡怡, 金维高   

  1. 上海第一医学院药学系分析化学教研组
  • 投稿日期:1957-11-21 发布日期:2013-06-03

THE APPLICATION OF TRIHYDROXYFLUORONE DERIVATIVES FOR THE COLORIMETRIC DETERMINATION OF TRIVALENT ANTIMONY

LU MING-LIEN, LIU TA-CHUN, YEN I-I, KING WEI-KAU   

  1. Department of Pharmacy, First Medical College of Shanghai
  • Received:1957-11-21 Published:2013-06-03

本文选用咈咔及其三种9-烃基、六种9-苯基及三种9-苯胺衍生物对七十三种无机离子的分析反应进行研究。在1N硫酸溶液中咈咔试剂能与Sb、Sn、Sn、Bi、Fe、Ge、MoO4=、WO4=等呈橙色至绛红色沉淀,对Sb、SnⅡ、Ge的反应特别灵敏。作者着重研究了试剂对锑(Ⅲ)的比色测定,发现十三种试剂中以9-苯基及9-苯胺-咈咔衍生物的硫酸乙醇溶液可作锑的比色试剂,特别以9-二乙胺基苯及9-间硝基苯-咈咔与三价锑生成之比色液透明清晰,非常稳定,前者测定灵敏度高(可测至0.02γSb/ml),后者测定范围大(可测至2γSb/ml以上)。9-间硝基苯试剂测定吐酒石等中锑的含量,与碘量法作比较,误差在百分之一以内。本文还确定试剂与锑的组成此,除试剂Ⅸ、Ⅺ及ⅫⅠ与锑为2:1以外,其余试剂与锑为1:1;试剂Ⅶ、Ⅷ、Ⅺ及ⅫⅠ和锑的络合常数分别为1.92×10-7、5.39×10-7、5.8×10-12及1.8×10-12;并初步确定组成1:1络合物的锑是连接于邻二酚基。

A detailed study hay been made on the analytical reaction of some 2,6,7-trihydroxy fluoione derivatives with 73 inorganic ions.The trihydroxyfluorones investigated include three 9-alkyl derivatives and nine 9-aryl derivatives.In 1N sulfuric acid solution, all of the fluorone reagents react with Sb、Sn、Sn、Bi、Fe、Ge、MoO4=、WO4=, forming orange or cherry-red precipitates.The color reaction is particularly sensitive to Sbt11, Snu and Sb、SnⅡ、Ge.