电感耦合等离子体原子发射光谱法测定铜合金中磷  

ICP-AES Determination of Phosphorus in Copper Alloys——Separation of Matrix Elements with Cation Exchange Resin

作　　者：李元芝 梁沛[2] 

机构地区：[1]武汉锅炉股份有限公司材料研究所,武汉430070 [2]华中师范大学化学学院,武汉430070

出　　处：《理化检验（化学分册）》2009年第2期195-196,230,共3页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)

摘　　要：在pH3～4的微酸性介质中，铜合金试样溶液通过装有强酸性聚苯乙烯型阳离子交换树脂的离子交换柱，分离除去其基体金属阳离子。交换柱流出液（包括洗液）经酸化，蒸发浓缩并定容为25mL后，用电感耦合等离子体原子发射光谱法测定此溶液中磷（以PO4^3-形态存在）的含量。方法的检出限（3σ）为0．026mg·L^-1，用标准加入法测得方法的平均回收率为101．9％。In a slightly acidic medium of pH 3-4, matrix elements of copper alloys in form of cations were separated by passing through an ion exchange column packed with cation exchange resin of strong-acidic polystyrene type. Phosphate in the solution eluted from the column was acidified, evaporated and finally made up to 25 mL in a volumetric flask, and determined by ICP-AES. Detection limit （3σ） of the method was found to be 0. 026 mg· L^-1. Test for recovery was made by standard addition method and the value of average recovery found was 101.9%.

关 键 词：电感耦合等离子体原子发射光谱法 阳离子交换树脂 磷 铜合金 

分 类 号：O657.31[理学—分析化学]