title: Determination of mineral elements in Gentiana rigescens from different zones of Yunnan, China.
abstract: The concentrations of nine mineral elements were determined by atomic absorption spectroscopy in Gentiana rigescens from three zones (middle, southeast, and northwest zones) of Yunnan province in China. The average concentrations of mineral elements were found in the order K>Ca>Mg>Fe>Na>Zn>Cu>Cr>Se. Samples collected from the middle zone of Yunnan were enriched in Na (242.24 ± 50.80 mg/kg) and Mg (959.78 ± 54.60 mg/kg). However, materials from the southeast zone were particularly enriched in Ca (3,448.70 ± 749.82 mg/kg), but depleted in Se. Whereas those from the northwest zone were plentiful of K (2,746.89 ± 84.84 mg/kg), Fe (923.06 ± 127.52 mg/kg), Zn (261.38 ± 53.05 mg/kg), Cu (110.08 ± 46.23 mg/kg), and Se (53.99 ± 22.38 mg/kg).
authors.affiliation: Institute of Medicinal Plants, Yunnan Academy of Agricultural Sciences, Kunming, China. jyzhang2008@126.com
authors.forename: Jinyu
authors.initials: J
authors.lastname: Zhang
authors.forename: Tianjun
authors.initials: T
authors.lastname: Yuan
authors.forename: Yuanzhong
authors.initials: Y
authors.lastname: Wang
authors.forename: Yanli
authors.initials: Y
authors.lastname: Zhao
authors.forename: Ji
authors.initials: J
authors.lastname: Zhang
authors.forename: Hang
authors.initials: H
authors.lastname: Jin
mesh_terms: D002118:Calcium / Q000032:analysis; D002681:China; D002857:Chromium / Q000032:analysis; D003300:Copper / Q000032:analysis; D030012:Gentiana / Q000737:chemistry*; D005843:Geography; D007501:Iron / Q000032:analysis; D008274:Magnesium / Q000032:analysis; D008903:Minerals / Q000032:analysis*; D010946:Plants, Medicinal / Q000737:chemistry*; D011188:Potassium / Q000032:analysis; D012643:Selenium / Q000032:analysis; D012964:Sodium / Q000032:analysis; D013054:Spectrophotometry, Atomic; D014131:Trace Elements / Q000032:analysis*; D015032:Zinc / Q000032:analysis
chemical_list: D008903:Minerals; D014131:Trace Elements; D002857:Chromium; D003300:Copper; D012964:Sodium; D007501:Iron; D012643:Selenium; D008274:Magnesium; D015032:Zinc; D011188:Potassium; D002118:Calcium