Indirect Iodometric Potentiometric Analysis of Reducing Sugars by Sodium Thiosulphate and Ferrous Sulphate

M. M. F. Metwally ； A. A. EI-Kheir

《The Chinese Pharmaceutical Journal》 53卷1期 (2001/02) Pp. 45-48

https://doi.org/10.7019/CPJ.200102.0045

並列摘要

The reducing sugars were oxidized by excess ammonium metavanadate in sulphuric acid medium in water bath and refluxed at 90℃. The excess standard ammonium meta-vanadate was determined either by back titration with standard ferrous sulphate (Method I) or by back titration with sodium thiosulphate for the iodine liberated after addition of potassium iodide (Method II). Methods I and II were applied to the determination of glucose, fructose, maltose, arabinose, galactose and sorbose.

並列關鍵字

Analysis of reducing sugars ； Potentiometry ； Indirect iodometry ； Ferrous sulphate