内蒙古民族大学学报（自然科学版）Issue(3)：269-272,4.
几种杂多酸及其盐对亚硝酸根清除效果的比较
Scavenging Effect of Several Heteropoly Acid to Nitrite
摘要
Abstract
By using spectrometric method, the scavenging activity of several common heteropoly acids and their salts, phosphotungstic acid, phosphomolybdic acid, silicotungstic acid, sodium tungstate and sodium molybdate to nitrile ions (NO2-)was measured with Vitamin C(known as L-ascorbic acid)as standard reference material under the simulated solution of gastric juice. The results showed that all the three kinds of heteropoly acids have better scavenging effect than the strong oxidant Vc to nitrite. The sequence of scavenging effect of three heteropoly acids was silicotungstic ac-id>phosphotungstic acid>phosphomolybdic acid, with their EC50 was 0.27mmol/L, 0.35 mmol/L and 0.62 mmol/L, respectively. Sodium tungstate exhibited poor scavenging activity.关键词
分光光度法/杂多酸/亚硝酸根/清除作用Key words
Spectrophotometry method/Heteropoly acid/Nitrite/Scavenging effect分类
化学化工引用本文复制引用
万敏娜,包永春,段莉梅..几种杂多酸及其盐对亚硝酸根清除效果的比较[J].内蒙古民族大学学报（自然科学版）,2014,(3):269-272,4.基金项目
稀土资源利用国家重点实验室开放课题（RERU2011003）；内蒙古自治区人才开发基金 （）
