摘要
采用磷钒钼黄比色法测定磷酸锌中磷含量.当磷含量为0～10 mg/L时,直线方程线性关系良好,符合郎伯-比尔定律,吸光系数为1.7×1044L/(mol·cm).对比测定结果表明,磷钒钼黄比色法对实际样品测定结果与磷钼酸喹啉重量法相近,变异系数RSD＜5.00%,可作为磷酸锌产品磷的简洁、快速测定.
Phosphorus content in zinc phosphate is determined by phosphorus vanadium molybdate yellow colorimetric method.The equation is linear and in accordant with Launber.Bill Law when the P content between 0 and 10 mg/L and the molar absorptivity is 1.7×10~4 L/(mol·cm).Comparison results show that the measured value by this method is close to that by phospho-molybdic quinoline gravimetric method .So it can be used as a convinient,fast and suitable method for the determination of phosphorus in zinc phosphate because of its RSD <5.00%.
出处
《无机盐工业》
CAS
北大核心
2005年第5期50-51,共2页
Inorganic Chemicals Industry
基金
广西科技厅青年基金项目(桂科青 0339012)。
关键词
分光光度法
磷
磷钒钼黄
磷酸锌
spectrophotometry
phosphourus
phosphorus vanadium molybdate yellow
zinc phosphate
