To standardize the tea export market and guarantee interest of consumers, adulteration problem in Taiping Houkui should be eliminated. In this study, a screening scheme comprising chemometrics statistical analysis was proposed to estimate geographical origin tea. A total 11 metal ions were detected by performing chemometric experiment. The key variables that can used identify screened using lea...

The origin of agricultural products is gaining in appreciation while often hard to determine for various reasons. Geographical origin may be resolved using a combination of chemical and physical analytical technologies. In the present case of Lily of the Valley (Convallaria majalis) rhizomes, we investigated an exploratory set of material from The Netherlands, three other European (EU) countrie...