摘要
试样经碱熔 ,酸化后 ,以磷 -钼 -钒黄分光光度法测定五氧化二磷 ;在草酸存在下 ,以抗坏血酸为还原剂 ,硅钼蓝法测定二氧化硅。本方法操作简单、快速 。
After the sample had been acidulated and dissolved by soda.P-Mo-V xanthic acid spectrophotometry was used to determine the content of P_2O_5.SiO_2 was determined by the method of silicon-molybdenum blue spectrophotometry in the presence of oxalic acid and the reducer of ascorbic acid.This method is simple and rapid with high precision and accuracy.
出处
《光谱实验室》
CAS
CSCD
2003年第1期88-91,共4页
Chinese Journal of Spectroscopy Laboratory
