化学学报 ›› 1958, Vol. 24 ›› Issue (6): 403-406. 上一篇    下一篇

论文

扑疟喹啉用作无机分析试剂Ⅰ.——铬(Ⅵ)的检验

李德鳳1, 汪迺经1, 沈乃葵2   

  1. 1. 上海第一医学院化学教研组;
    2. 上海第二医学院化学教研组
  • 收稿日期:1957-12-13 出版日期:1958-12-15 发布日期:2013-06-03

PLASMOCHIN AS A REAGENT IN INORGANIC ANALYSIS Ⅰ. ——DETECTION OF CHROMIUM(Ⅵ)

LEE TE-FUNG1, WANG NAI-CHING1, SHEN NAI-KUEI2   

  1. Department of Chemistry, First and Second Medical Colleges of Shanghai
  • Received:1957-12-13 Online:1958-12-15 Published:2013-06-03

(1)扑疟喹啉在0.1N高氯酸和8%草酸的条件下与铬酸根作用显紫色.检出限为0.05γ, 界限稀度为1:106.Ce+4, Au+3, VO3-, BrO3-, IO3-, IO4-和NO2-有干扰作用.(2)已测定铬酸根与七十四种离子界限比率.大部分以1:200的界限比率对检出的灵敏度无影响.

Plasmochin(N-diethylamine-iaopentyl-8-amino-6-methoxyquinoline) in the presence of 0.1N perchloric acid and 8% oxalic acid, reacts with CrO-24(or Cr2O7-27) ions to give a red-violet coloration which is not extracted by ordinary organic solvents.The limit of identification is 0.06'Y at a dilution Limit of 1:106, Ce+4, Au+3, VO-3, Br-3, IO-3, I0-4 and NO-2 ions interfere with the detectors of CrO-24 ions.The limit of proportion of CrO-24 ion with 74 ions has been determined and in most cases, they neither affect the reaction nor decrease the eenaitivity even in the ratio of 1:200.