西南石油大学学报(自然科学版) ›› 1992, Vol. 14 ›› Issue (2): 105-110.DOI: 10.3863/j.issn.1000-2634.1992.02.14

• 论文 • 上一篇    下一篇

聚丙烯酸胺浓度的测定——碘-淀粉比色法的改进

杨世光 杨林 饶小桐.
  

  1. 油气田化学工程系
  • 收稿日期:1992-02-20 修回日期:1900-01-01 出版日期:1992-04-20 发布日期:1992-04-20

DETERMINATION OF CONCENTRATtON OF POLYACRYLAMIDE-AN IMPROVEMENT ON IODINE-STARCH COLORIMETRIC METHOD

Yang Shi-guang Yang-Lin Rao Xiao-tong
  

  1. (Department of Applied Chemistry)
  • Received:1992-02-20 Revised:1900-01-01 Online:1992-04-20 Published:1992-04-20

摘要:

对聚丙烯酰胺浓度的测定,使用最广泛的是淀粉一三碘化物比色法,其线性范围为0~6PPM,测量受温度影响大,重现性不够好。本文在此基础上改用了更优良的还原一掩蔽剂体系,使浓度检测的线性范围扩大到0~24PPM并且在室温下测定几乎不受温度影响,重现性好。

关键词: 聚丙烯酰胺, 测定, 比色法

Abstract: A method for analyzing the concentration of polyacrylamide, which is based on the iodine-starch, is developed FeSO4, used as reductant and NH4HF2 as masking agent,the concentration of polyacrylamide may be determined within 0-24 ppm while by the old method within 0-6 ppm Especially, this method almost is not affected by the room temperature
15-300C and has a better reappearance.

Key words: Polyacrylamide, Determination, Colorimetric method

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