FOOD SCIENCE ›› 2002, Vol. 23 ›› Issue (9): 89-90.

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Quick Determination of Free SO2 in Red Wine by Photometric Titration

 WANG  Yun-Hua, ZHAO  Yu-Ling, ZHANG  Wei, JIA  Ming-Zhi   

  • Online:2002-09-15 Published:2011-12-31

Abstract: This article introduced a new method to determine free SO2 in red wine—photometric titration.It was quick and simple, with good accurate and high precision.The automation of operation could be easily achieved. It was very suitable for the analyzing trace of free SO2 during the course of winemaking.

Key words: Photometric titration , Red wine , Free SO2