Development of Thailand reference material for determining some elements in green chiretta (Andrographis paniculata) powder
DOI:
https://doi.org/10.60136/bas.v12.2023.399Keywords:
Certified reference material, Herb, Green chiretta, Reference values, Measurement uncertaintyAbstract
The certified reference material for determining some elements in green chiretta (Andrographis Paniculata) powder has been developed by the National Institute of Metrology (Thailand) (NIMT), which is called Thailand Reference Material (TRM) to support quality control of the traditional herbs and herbal products. NIMT has been recognized for the Calibration and Measurement Capability (CMC) on the International Bureau of Weight and Measures (BIPM) website for participation in the inter-comparison activities of the International Committee for Weights and measures (CIPM) participated (e.g., CCQM-K89, etc.). Certified values of As, Ca, Cd, Cr, Cu, Fe, Mg, Mn, Ni, P, Pb and Zn with their associated uncertainties and information values of Hg and Na were then reasonably obtained. Their property values of TRM-F-2006 were characterized by ID-ICP-MS, GSA-ICP-MS, GSA-ICP-OES, Ext-ICP-MS and Ext-ICP-OES techniques. The TRM-F-2006 regards using valid procedures for homogeneity and stability studies implemented according to the requirement started in ISO 17034 to ensure the quality of CRM. TRM-F-2006 can be used for method validation and quality control purposes.
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