Jingxia Wang, Ling Ding, Yunzhang Xu, Xiaoyan Zhao,Mei Sun, Yuan Liu*, Jizhong Zhang, Zhifeng Zhang and Luyang Lu
Analytical Letters, volume 31 2013(Impact factor 0.98,SCI, accepted)
Abstract: Inorganic element concentrations in the roots of Plumbago zeylanica L. were determined byinductively coupled plasma optical emission spectrometry following microwave-assisted digestion. The most abundant elements were Al, Ca,Fe, Mn, Mg, P, and K, while other elements, including As, B, Cd, Co, Cu, Mo,Na, Ni, Pb, Si, Sn, Sr, Ti, V, Zn, and Cr, were also determined. The resultswere subjected to chemometrics analyses that indicated that the collection timesignificantly affected the inorganic element concentrations. Further, the planting method, soil property, fertilizer and vegetative cover also affected the inorganic element concentrations in the roots of Plumbago zeylanica L. Notably,cultivated samples showed different inorganic element concentrations comparedto the wild samples. The implications for the quality control and pharmacologyof Plumbago zeylanica L. are discussed.
Keywords：Chemometrics,Inorganic elements,ICP-OES,Plumbagozeylanica L.