中国标准化Issue(9)：235-238,256,5.DOI:10.3969/j.issn.1002-5944.2025.09.038
分散液液微萃取-原子吸收分光光度法检测硅橡胶植入物中铜元素含量
Determination of Copper in Silicone Rubber Implants by Dispersive Liquid-liquid Microextraction and Atomic Absorption Spectrophotometry
摘要
Abstract
The paper used the microwave digestion technology for the digestion of silicone rubber implants,used the dispersive liquid-liquid microextraction(DLLME)method for separation and enrichment of trace copper in the digestion solution,and used the atomic absorption spectrophotometry method for determining the content of Cu element in silicone rubber implants.Ammonium diethyldithiocarbamate(DDTC)was used as the chelating agent.A series of influence factors relevant to the microextraction efficiency including the type and volume of extractant and disperser,the concentration of chelating reagents,pH and the content of DDTC were optimized.Under the optimal extraction conditions,the mass concentration of the Cu element was liner in the range of 0～20 μg/L,the correlation coefficient was 0.9993,the detection limits were 0.071 μg/L,the relative standard deviations were 2.35%(n=6),and the adding standard recovery ratio were 97.80%,which were satisfactory.关键词
分散液-液微萃取/原子吸收分光光度法/硅橡胶植入物Key words
DLLME/atomic absorption spectrophotometry/silicone rubber implant引用本文复制引用
姜晨阳,刘书畅,鲁刚..分散液液微萃取-原子吸收分光光度法检测硅橡胶植入物中铜元素含量[J].中国标准化,2025,(9):235-238,256,5.
