灵芝中锗成分分析标准物质的研制

Study on Certified Reference Material of Germanium in Ganoderma Lucidum

目的是为有关行业对锗分析、监测及评价结果的准确一致而设计和制备，可用于有关行业的技术培训、考核、仲裁、验证等工作。本标准物质用石墨炉原子吸收光谱法等三种以上不同原理、不同分析分析方法进行定值。按格拉布斯法则判定每组数据，正态性Ｄ检验确认７组定值的所有数据为正态分布后，总算术平均值为０．３８μｇ／ｇ，标准偏差为０．０８μｇ／ｇ。

Analytical reference material of Ge in Ganoderma lucidum is designed and prepared for accurte analysis,monitoration and evaluation in trades of farming,forestry,medicine and food hygiene for Ge.It is used in technical training,technical assessing,monitoring, data arbitrating and analytic method verifing for professional supervisors.This reference material has been certified by graphitic oven atomic absorption spectrometry,hydride spectrophotometry,polarography,chemical separation spectrophotometry,atomic fluorescence method and x ray fluorescence method.According to Grubb's law to judge the data of each group,it is confirmed that all of seven groups certified crude data are normal distribution by checking normality D.The arithmatic mean value of all data is 0 38μg/g.Standard deviation is 0 08μg/g.