ICP-OES内标法测定聚丙烯塑料水管中铝、铁、铅、锌含量  

Determination of aluminum,iron,lead and zinc in PP pipe by ICP-OES internal standard method

作　　者：程怡 Cheng Yi(R ＆ D Management Co.,Ltd.,DuPont（China）Shanghai 201203,China)

机构地区：[1]杜邦(中国)研发管理有限公司,上海201203

出　　处：《石化技术》2016年第10期36-37,共2页Petrochemical Industry Technology

摘　　要：建立了以微波消解为前处理方法,电感耦合等离子体发射光谱(ICP-OES)测定聚丙烯塑料水管中铝、铁、铅、锌等重金属的含量。利用钪(Sc)元素作为内标物质,用来校正仪器的漂移和基体的差异,以7.0mL浓硝酸和1.0mL30%的过氧化氢溶解塑料样品,该方法样品用量少,消解完全,适用于塑料中有害元素的快速测定。The contents of aluminum,iron,lead,zinc and other heavy metals in polypropylene（PP）pipes were determined by inductive couplingplasma atomic emission spectrometry（ICP-OES）with microwave digestion pretreatment. Scandium（SC） was used as internal standard substance to revisethe instrumental drift and matrix difference. Nitric acid of 7.0ml and 30% hydrogen peroxide of 1.0ml were used for dissolution of plastic samples. The methodfeaturing less dosage and completely digestion of samples, is applicable in rapid determination of harmful elements in plastics.

关 键 词：塑料 重金属 微波消解 电感耦合 等离子体发射光谱 

分 类 号：TQ320.77[化学工程—合成树脂塑料工业] O657.31[理学—分析化学]