高等学校化学学报 ›› 1989, Vol. 10 ›› Issue (4): 351.

• 研究论文 • 上一篇    下一篇

全差示光度法三大参数的相互关系及其应用

顾靖飞   

  1. 中国科技大学地球与空间科学系
  • 收稿日期:1987-06-29 出版日期:1989-04-24 发布日期:1989-04-24

Correlation and Application of Three Major Parameters in the Differential Spectrophotometry with an Electrical Reference

Gu Jingfei   

  1. Department of Earth and Space Science, University of Science and Technology of China, Hefei
  • Received:1987-06-29 Online:1989-04-24 Published:1989-04-24

摘要: 本文介绍全差示法调百参比Tr、反向微电流i、标尺放大倍数x的定义和性质,导出调零参比TR,论述了参数间相互关系。用计算机绘制不同x的相对误差函数图。用全差示法测定磷矿样品的P2O5含量,结果良好。

关键词: 光度法, 差示, 反向微电流

Abstract: This paper describes the definitions and properties of three parameters, reference of 100% transmittance Tr, the counter-microcurrent reference i and scale magnification x in the differential spectrophotometry with an electrical reference (ERDS), and deduces the expression formula of the reference of 0% transmittance TR, and points out the correlations of the parameters. The relative error function diagram of different x in ERDS has been drawn by a computer. By using this method, a good result has been obtained in determining P2O5in phosphate rock.

Key words: Spectrophotometry, Differential, Counter-microcurrent

TrendMD: