【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 ~10mg/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. 7×104 L/(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。更多还原

【Abstract】 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%.更多还原