液相色谱-原子荧光联用仪校准方法探讨  

Study on calibration method of Liquid chromatography-atomic fluorescence spectrometry

作　　者：仵欣 许爱华 孙倩芸 隋峰 高捷 李锋丽 何云馨 杨中元 樊晓翠 Wu Xin;Xu Aihua;Sun Qianyun;Sui Feng;Gao jie;Li Fengli;He Yunxin;Yang zhongyuan;Fan Xiaocui(Shandong Institute of Metrology,Jinan 200014,China)

机构地区：[1]山东省计量科学研究院,济南250014

出　　处：《分析仪器》2018年第4期135-139,共5页Analytical Instrumentation

基　　金：山东省重点研发项目(2016GSF120005)

摘　　要：液相色谱-原子荧光联用仪是元素形态检测的重要仪器,本文对液相色谱-原子荧光联用仪校准的主要技术指标和校准方法进行了探讨,确定了泵流量设定值误差、泵流量稳定性误差、基线漂移、基线噪声、检出限、相关系数、重复性等作为校准的主要技术指标,并通过一甲基砷、二甲基砷、亚砷酸根和砷酸根溶液国家有证标准物质考察仪器的检出限、相关系数等指标。LC-AFS is of great importance in the analysis of arsenic species. In this paper, the main technical indexes, calibration methods and requirements for calibration of liquid chromatography-atomic fluorescence spectrometer were discussed. The main technical indexes of calibration were confirmed, including the errors of pump flow velocity, baseline drift, baseline noise, detection limit, correlation coefficient and repeatability. The standard substances of monomethyl arsenic, dimethyl arsenic, arsenite and arsenate were adopted to validate the limit and correlation coefficient.

关 键 词：液相色谱-原子荧光 元素形态 校准 

分 类 号：TH744.1[机械工程—光学工程] TH833[机械工程—仪器科学与技术]