[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].
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.
Wu
Xi-hong
XH
Key Laboratory of Analytical Sciences of MOE, Department of Chemistry, Xiamen University, Xiamen 361005, China.
Sun
Da-hai
DH
Yang
Chao-yong
CY
Zhuang
Zhi-xia
ZX
Wang
Xiao-ru
XR
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*
D004365:Drugs, Chinese Herbal; D014131:Trace Elements; D003300:Copper; D007501:Iron; D002118:Calcium