摘要
据工业磷酸和食品级磷酸中的硫酸根含量可用目视比浊法的原理对湿法磷酸中的硫酸根含量进行了吸光光度比浊法的测定研究与分析。可得到目视比浊法不能得到的连续数据。与重量法相比无显著差异,反应后测定时间的不同对测定结果的影响不显著,RSD小于2％,回收率大于94％,可作湿法磷酸及其制品中硫酸根含量测定的一种快速、准确、简便的仪器分析方法。
Turbidimetric method is applied to the determination of sulfate ion in wet process phosphoric acid. The results obtained by this method have no notable difference as compared with those obtained by the gravimetric method. The method proposed has satisfactory accuracy and precision, giving a recovery of greater than 94% and a RSD % smaller than 2%.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
1999年第3期122-123,共2页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
