XRF procedures for analysis of standard reference materials

Autor:	Zhong Yi Zhang, An Ji, Guang Yi Tao
Rok vydání:	1990
Předmět:	Certified reference materials business.industry Elemental analysis Analytical chemistry Calibration Environmental science Certification Process engineering business Quality assurance Spectroscopy Chinese tea
Zdroj:	X-Ray Spectrometry. 19:85-88
ISSN:	1097-4539 0049-8246
DOI:	10.1002/xrs.1300190211
Popis:	The importance of Standard Reference Materials (SRMs) or Certified Reference Materials (CRMs) in quality assurance of measurements is widely accepted. SRMs and CRMs are frequently used in analytical chemistry for calibration, verification and evaluation of both analytical methods and instruments. The homogeneity, means of certification, stability and uncertainty of certified values for SRMs or CRMs are of particular interest. As one of the main techniques of elemental analysis, x-ray fluorescence (XRF) analysis plays an important role in homogeneity tests and certification measurements for SRMs and CRMs. The XRF procedures for analysing Tibet Soil and Chinese Tea CRMs are presented as examples. The results obtained by XRF are in good agreement with the certified values or those from using other analytical techniques and from the different laboratories.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8fdb99ab1537ef2278160bb1baf03bb7 https://doi.org/10.1002/xrs.1300190211 Zobrazit plný text záznamu Plný text