摘要
介绍用偶氮氯膦—mA分光光度法测定锌 -铝 -稀土合金镀层中的稀土量。该测定法稀土量在 0～ 1mg L范围内符合比尔定律 ,相对误差小于 2 .4 % ,加标回收率可达 97.6 %～ 99.4 % ,用于锌 -铝 -稀土合金镀层中稀土的测定 ,有良好的准确性和重现性。
To introduce the determination of rare earth content in Zn-Al-RE alloy coat using the C 24 H 18 ClN 4O 12 PS 2-m A spectrophotometry.The rare earth content respond to Bell law in scope of 0～1 mg/L with this method,and the relative error is less than 2.4%,the indexed recovery can be up to 97.6%～99.4%.The method used as determination of rare earth content in Zn-Al-RE alloy coat has good accuracy and repeatability.
出处
《金属制品》
2001年第6期33-35,共3页
Metal Products
