【摘要】 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。更多还原

【Abstract】 Objective To test the stability of 0. 1 % rivanoli solution and 0. 1 % rivanoli solution containing0. 01 % sodium thiosulfatis. Methods: The rivanoli content were determined by UV spectrophotometry,and thestability test was conducted by the initial average rate method. Results: The shelflife of 0. 1 % rivanoli sulution atroom temperature was 154 days while that of 0. 1 % rivanoli solution containing 0. 01 % sodium thiosulfatis was611 days. Under light of 1000 Lx at room temperature .the reaction rate constant of 0. 1 % rivanoli solution was3. 7467 × 10-4mg/ml/h, while that of 0. 1 % rivanoli solution containing 0. 01 % sodium thiosulfatis was 2. 4897× 10-4mg/ml/h. Conclusion:The latter was more stable than the former.更多还原