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介绍了一种测定红葡萄酒中游离SO_2的新方法—光度滴定法。该方法快速、简便,分析结果精度好,准确度高,并且容易实现分析操作的自动化。很适于葡萄酒酿造与生产过程中游离SO_2的在线分析。
A new method for determination of free SO_2 in red wine - photometric titration is introduced. The method is fast, simple, accurate and accurate, and easy to automate the analysis. Ideal for online analysis of free SO2 in wine-making and production processes.