title: [Determination of thirteen metal elements in the plant Foeniculum vulgare Mill. by flame atomic absorption spectrophotometry].
abstract: The objective of the paper is to determine the amount of metal elements of Na, K, Mg, Ca, Cu, Zn, Mn, Fe, Co, Ni, Cd, Cr and Pb in the planted Foeniculum vulgare Mill. by flame atomic absorption spectrophotometry (FAAS), after the cinefaction and the digestion with HNO3-HClO4 (phi 4:1) at 90-95 degrees C and normal pressure. The optimum parameters of FAAS and the effects of solution medium on the results were investigated. The analytical results show that the amount of Na, K, Mg, Ca, Mn, Fe, Cu, Zn and Pb was 1508.7, 27653.0, 2036.0, 4848.1, 24.8, 323.5, 15.2, 23.7 and 10.8 microg x g(-1), respectively, and that of Co, Ni, Cd and Cr was not checked out in the samples. The recovery of standard addition is 97.45%-102.50%, the relative standard deviation (n=9) was 0.34%-2.77%. The characteristic method is quick, simple and convenient and the results are satisfactory.
authors.affiliation: Department of Chemistry, Key Laboratory of Resources and Environment Chemistry of West China, Hexi University, Zhangye 734000, China.
authors.forename: Guo-qing
authors.initials: GQ
authors.lastname: Xue
authors.forename: Qing
authors.initials: Q
authors.lastname: Liu
authors.forename: Yu-qi
authors.initials: YQ
authors.lastname: Han
authors.forename: Hui-guang
authors.initials: HG
authors.lastname: Wei
authors.forename: Ting
authors.initials: T
authors.lastname: Dong
mesh_terms: D030001:Foeniculum / Q000737:chemistry*; D008670:Metals / Q000032:analysis*; D013054:Spectrophotometry, Atomic
chemical_list: D008670:Metals