title: [Study on certified reference material of germanium in Ganoderma lucidum].
abstract: Analytical reference material of Ge in Ganoderma lucidum is designed and prepared for accurete 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 0.38 microgram/g. Standard deviation is 0.08 microgram/g.
authors.affiliation: Zhejiang Academy of Medical Sciences, Hangzhou, China.
authors.forename: L
authors.initials: L
authors.lastname: Lu
authors.forename: Y
authors.initials: Y
authors.lastname: Qian
authors.forename: Z
authors.initials: Z
authors.lastname: Hu
authors.forename: Y
authors.initials: Y
authors.lastname: Ye
mesh_terms: D004365:Drugs, Chinese Herbal / Q000737:chemistry; D005857:Germanium / Q000032:analysis*; D012015:Reference Standards; D020940:Reishi / Q000737:chemistry*
chemical_list: D004365:Drugs, Chinese Herbal; D005857:Germanium