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化学学报
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化学学报 ›› 1982, Vol. 40 ›› Issue (10): 897-903. 上一篇    下一篇

论文

新极谱学研究——Ⅱ.玻炭汞膜电极新极谱溶出法

朱果逸, 汪尔康   

  1. 中国科学院长春应用化学研究所
  • 投稿日期:1981-06-03 发布日期:2013-06-03
  • 通讯作者: 汪尔康

ON NEOPOLAROGRAPHY Ⅱ. ANODIC STRIPPING NEOPOLAROGRAPHY WITH GLASSY GARBON THIN FILM MERCURY ELECTRODE

ZHU GUO-YI, WANG ER-KANG   

  1. Changchun Institute of Applied Ghemistry, Academia Sinica
  • Received:1981-06-03 Published:2013-06-03

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本文提出了汞膜电极阳极溶出新极谱法中的.e'-E和e"-E曲线的一般方程式.与半积分、半微分和伏安法进行了比较讨论.也研究了分析性能.结果表明,汞膜电极新极谱溶出法的灵敏度很高.2.5次微分阳极溶出法可测定ppt(1012)级Cd(Ⅱ),重现性5%;ppb级时重现性达2%.

Anodio stripping neopolarography with rotating glassy carbon thin film mercury electrode has been carried out for the 1.fith order (e') and 2.5th order (e") differential eleotroanalyais. The general anodio stripping equations for the e'-E and e"-E curves have been derived and compared with those for e-E and m-E curves. Experimental results obtained with the inatrnment made in our laboratory are shown to be in good agreement with theory. This technique is much sensitive than that of anodio stripping voltammetry. Cadmium can be detected down to ppt level.