关于硅钼蓝分光光度法测定锅炉水中二氧化硅的优化研究  

Optimization Study on Determination of Silicon Dioxide in Boiler Water by Silicon Molybdenum Blue Spectrophotometry

作　　者：侯屹婷 Hou Yiting(Guangfa Chemical Industry Co.,Ltd.,Jinneng Holding Coal Industry Group,Shanxi,037003)

机构地区：[1]晋能控股煤业集团广发化学工业有限公司,山西037003

出　　处：《当代化工研究》2021年第17期1-2,共2页Modern Chemical Research

摘　　要：用抗坏血酸替代了1-氨基-2-萘酚-4-磺酸作为硅钼蓝分光光度法测量锅炉水二氧化硅含量的还原剂,解决了1-氨基-2-萘酚-4-磺酸具有毒性、刺激性气味等环境不友好问题。通过优化实验条件,探讨了还原剂用量、酸度、显色时间等对反应的影响,建立了新的工作标准曲线,其线性相关系数达到0.9999。该方法的相对标准偏差均小于2%,加标回收率均大于97%,是可靠有效的测量方法。Ascorbic acid is used to replace 1-amino-2-naphthol-4-sulfonic acid as a reducing agent for the determination of silica content in boiler water by silicon molybdenum blue spectrophotometry,which solves the environmental problems of 1-amino-2-naphthol-4-sulfonic acid,such as toxicity and pungent odor.By optimizing the experimental conditions,the effects of reducing agent dosage,acidity and color developing time on the reaction were discussed.A new standard curve was established,and the linear correlation coefficient was 0.9999.The relative standard deviation is less than 2%and the recovery is more than 97%.It is a reliable and effective method.

关 键 词：硅钼蓝分光光度法 锅炉水 二氧化硅 抗坏血酸 

分 类 号：TQ[化学工程]