摘要
建立了使用流动注射氢化物发生器、KBH4-H2SO4体系使汞还原气化,采用冷原子吸收分光光度法测定涂料中汞的分析方法.在吸收波长253.7nm处,汞在0～100ng/mL呈现良好的线性关系,标准曲线的回归方程C=128.640A-3.9200,相关系数γ=0.9994;以3SA/S计,方法检出限:0.8ng/mL;方法精密度RSD<5%.加标回收率在95%～108%.方法自动化程度高,用于涂料中汞的测定,简便、快捷、准确.
A method for determining mercury in coating by atomic absorption spectrometry with flow injection hydride generator was established. In the range of o^100 mg/mL, Mercury obeyed Beer′s law. The linear regresion equation was C=128.640A-3.9200,γ=0.9994, RSD of mercury was less than 5%, recoveries 95%~108%, and derection limit 0.8 mg/mL for 3SS/S. It was proued to be an accurate and method result in the analysis of actual samples.
出处
《分析测试技术与仪器》
CAS
2004年第1期57-60,共4页
Analysis and Testing Technology and Instruments
