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目的：考察0．1％利凡诺溶液和加入0．01％硫代硫酸钠的0．1％利凡诺溶液的稳定性。方法：采用紫外分光光度法测定含量，通过初均速法测定室温贮存期。结果：0．1％利凡诺溶液和加入0．01％硫代硫酸钠的0．1％利凡诺溶液，室温下（20℃）贮存期分别为154天和611天。20℃，1000LX光照下，反应速度常数K分别为3．7467×10-4mg／ml／h和2．4897×10－4mg／ml／h。结论：后者稳定性高于前者。
OBJECTIVE: To investigate the stability of 0.1% rivanol solution and 0.1% rivanol solution with 0.01% sodium thiosulfate. Methods: The content was determined by UV spectrophotometry, and the storage period at room temperature was determined by the means of the average initial velocity. Results: The 0.1% rivanol solution and the 0.1% rivanol solution with 0.01% sodium thiosulfate were stored at room temperature (20 ° C) for 154 days and 611 days, respectively. The reaction rate constants K were 3.7467 × 10-4mg / ml / h and 2.4897 × 10-4mg / ml / h respectively at 1000 ℃ and 1000 ℃. Conclusion: The latter is more stable than the former.