In this work, the contents of all elements including Cu, Fe, Zn, Al, Mn, Cd, Pb, Ti and As were tested by ICP-AES technique, which elements root in Fallopia multiflora from different place such as Renhe county, Miyi county, Qianjiang county and so on. Detection limits ranged 0.0021ug/ml-1 and 0.076ug/ml-1, the relative standard deviations for all these elements were lower than 2%, and recovery rates ranged 95.52% and 107.2%. The consequence showed that there were many metallic elements in Fallopia multiflora from different places; contents of Fe and Al were highest in Renhe county’s sample specially; contents of Mn, Cu, Zn and Ti were moderately high in Yanbian county specially; and contents of As, Cd and Pb were lowest in Qianjiang county. concentrations of elements within Fallopia multiflorafrom different places were different, which may have some relations with the environment where Fallopia multiflora grew. So ,its necessary to monitor the environment condition of plant surronding.
The use of synthetic foods to optimise microwave-assisted digestion procedures
