title: [Determination of inorganic elements in different parts of Sonchus oleraceus L by flame atomic absorption spectrometry].
abstract: Flame atomic absorption spectrometry with air-acetylene flame was used for the determination of inorganic metal elements in different parts ( flower, leaf, stem and root) of Sonchus oleraceus L. The contents of Ca, Mg, K, Na, Fe, Mn, Cu, Zn, Cr, Co, Ni, Pb and Cd in the flower, leaf, stem and root of Sonchus oleraceus L were compared. The order from high to low of the additive weight (microg x g(-1)) for the 13 kinds of metal elements is as follows: leaf (77 213.72) > flower (47 927.15) > stem(42 280.99) > root (28 131.18). From the experimental results it was found that there were considerable differences in the contents of the metal elements in different parts, and there were richer contents of Fe, Zn, Mn and Cu in root and flower, which are necessary to human health, than in other parts.
authors.affiliation: Center for Experiment, College of Chemistry and Chemical Engineering, Shandong University, Ji'nan 250100, China. naixingwang@163.com
authors.forename: Nai-Xing
authors.initials: NX
authors.lastname: Wang
authors.forename: Xue-Gui
authors.initials: XG
authors.lastname: Cui
authors.forename: Ai-Qin
authors.initials: AQ
authors.lastname: Du
authors.forename: Hong-Zhi
authors.initials: HZ
authors.lastname: Mao
mesh_terms: D003300:Copper / Q000032:analysis; D004365:Drugs, Chinese Herbal / Q000737:chemistry; D035264:Flowers / Q000737:chemistry; D006801:Humans; D007501:Iron / Q000032:analysis; D008345:Manganese / Q000032:analysis; D008670:Metals / Q000032:analysis*; D018515:Plant Leaves / Q000737:chemistry; D018517:Plant Roots / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry; D018514:Plant Structures / Q000737:chemistry*; D031184:Sonchus / Q000737:chemistry*; D013054:Spectrophotometry, Atomic / Q000379:methods*; D015032:Zinc / Q000032:analysis
chemical_list: D004365:Drugs, Chinese Herbal; D008670:Metals; D008345:Manganese; D003300:Copper; D007501:Iron; D015032:Zinc