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化学学报
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化学学报 ›› 1964, Vol. 30 ›› Issue (2): 108-111,116. 上一篇    下一篇

论文

方波极谱的研究Ⅰ.振动子方波极谱仪

张祖训, 王春霞, 黄文裕, 徐承古, 高鸿   

  1. 南京大学化学系
  • 投稿日期:1963-01-17 发布日期:2013-06-03

INVESTIGATIONS ON SQUARE-WAVE POLAROGRAPHY Ⅰ. VIBRATOR SQUARE-WAVE POLAROGRAPH

CHANG TSU-HSUN, WANG CHUN-HSIA, HUANG WEN-YU,HSU CHENG-KU, KAO HUNG   

  1. Department of Chemistry, Nanking University
  • Received:1963-01-17 Published:2013-06-03

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330

被引次数

3

Barker提出的方波极谱法是目前灵敏度最高、分辨能力最好的极谱方法.在可逆反应的情况下,根据Barker[1]最初报告[2],可鉴定的最低浓度为2×10-7M,嗣后经改良仪器,可鉴定的最低浓度为4×10-8M.

A very simple square wave polarograph is easily constructed by attaching two vibratots to the Heyrovsky-Shikata Polarograph (type V301).This "vibrator square wave polarograph" was first advocated by Kiang I-Chin and modified by Feng Chiang-Shing et al.The present authors introduce some innovations in the circuit so as to render the waves more stable and reproducible.The polarograph is very simple in construction,but quite sensitive.For reversibly-reduced ions (e.g.Cd2+ in 0.1 M KCl),2×10-7M can be detected and the optimum concentration range for determination is 10-4-10-6 M.This apparatus is especially suitable for teaching purpose.