title: [Speciation of 9 trace elements in a traditional Chinese medicine long dan cao by flow injection-inductively coupled plasma mass spectrometry with a focused microwave assisted extraction system].
abstract: A method based on focused microwave extraction for leaching 9 trace elements in traditional Chinese medicine Long Dan Cao was introduced. An online C18 enrichment-separation system and an HP4500 ICP mass spectrometer with a flow injection system was established for the separation and determination of inorganic speciation and organic speciation of the selected elements. Orthogonal design was applied for the optimization of microwave leaching conditions. The results showed that the temperature was the major factor for the leaching recoveries.
authors.affiliation: Key Laboratory of Analytical Sciences of MOE, Department of Chemistry, Xiamen University, Xiamen 361005, China.
authors.forename: Xi-hong
authors.initials: XH
authors.lastname: Wu
authors.forename: Da-hai
authors.initials: DH
authors.lastname: Sun
authors.forename: Chao-yong
authors.initials: CY
authors.lastname: Yang
authors.forename: Zhi-xia
authors.initials: ZX
authors.lastname: Zhuang
authors.forename: Xiao-ru
authors.initials: XR
authors.lastname: Wang
mesh_terms: D002118:Calcium / Q000032:analysis; D003300:Copper / Q000032:analysis; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D017022:Flow Injection Analysis / Q000379:methods; D030012:Gentiana / Q000737:chemistry*; D007501:Iron / Q000032:analysis; D013058:Mass Spectrometry / Q000379:methods; D008872:Microwaves; D018517:Plant Roots / Q000737:chemistry; D013054:Spectrophotometry, Atomic / Q000379:methods; D013696:Temperature; D014131:Trace Elements / Q000032:analysis*
chemical_list: D004365:Drugs, Chinese Herbal; D014131:Trace Elements; D003300:Copper; D007501:Iron; D002118:Calcium