石油化工2024，Vol.53Issue(12)：1787-1792,6.DOI:10.3969/j.issn.1000-8144.2024.12.014
基于碱熔融-酸解ICP-AES法测定聚烯烃中多种元素含量
Determination of multi-element content in polyolefin based on alkali fusion and acid soluble ICP-AES method
摘要
Abstract
A method for determining the content of Al,Mg,Zr,Ti,and Si in polyolefins by alkali fusion and acid soluble ICP-AES was established.The influence of the matrix effect was investigated through spike recovery experiments on elements to be determined containing Li and B matrices,and the interference and elimination method of coexisting elements was studied.The detection limit and precision of the method have been determined.The experimental results indicate that the high content of Li and B elements in the solution has a significant impact on the determination of Al,Mg,Zr,Ti,and Si.The interference coefficient correction method can effectively eliminate the interference of the matrix on the elements.The linear correlation coefficients of the calibration curves for each element are greater than 0.999.The relative standard deviation(n=7)of all determined elements is 1.5%-5.0%.The established method can accurately determine the content of Al,Mg,Zr,Ti,and Si in polyolefins.关键词
碱熔融/酸解/聚烯烃/干扰系数Key words
alkali fusion/acid soluble/polyolefin/interference coefficient分类
化学化工引用本文复制引用
荣丽丽,赵铁凯,沈刚,王磊,张岩..基于碱熔融-酸解ICP-AES法测定聚烯烃中多种元素含量[J].石油化工,2024,53(12):1787-1792,6.基金项目
国家重点研发计划项目(2022YFF0609700-2022YFF0609703). （2022YFF0609700-2022YFF0609703）
