title: [Study on the determination of 28 inorganic elements in sunflower seeds by ICP-OES/ICP-MS].
abstract: The present paper describes a simple method for the determination of trace elements in sunflower seeds by using inductively coupled plasma optical emission spectrometry (ICP-OES) and inductively coupled plasma spectrometry (ICP-MS). HNO3 + H2O2 were used to achieve the complete decomposition of the organic matrix in a closed-vessel microwave oven. The contents of 10 trace elements (Al, B, Ca, Fe, K, Mg, Na, Si, P and S) in sunflower seeds were determined by ICP-OES while 18 trace elements (As, Ba, Cd, Co, Cr, Cu, Li, Mn, Mo, Ni, Pb, Rb, Sr, Sn, Sb, Ti, V and Zn) were determined by ICP-MS. The rice reference material (GBW10045) was used as standard reference materials. The results showed a good agreement between measured and certified values for all analytes. The concentrations of necessary micro elements Ca, K, Mg, P and S were higher. This method was simple, sensitive and precise and can perform simultaneous multi-elements determination of sunflower seeds.
authors.affiliation: College of Material and Chemical Engineering, Hunan Institute of Technology, Hengyang 421002, China. hwl0466@163.com
authors.forename: Hong-Wei
authors.initials: HW
authors.lastname: Liu
authors.forename: Zong-Hui
authors.initials: ZH
authors.lastname: Qin
authors.forename: Hua-Lin
authors.initials: HL
authors.lastname: Xie
authors.forename: Shu
authors.initials: S
authors.lastname: Cao
mesh_terms: D002118:Calcium / Q000032:analysis; D006368:Helianthus / Q000737:chemistry*; D007477:Ions / Q000032:analysis*; D008274:Magnesium / Q000032:analysis; D013058:Mass Spectrometry / Q000379:methods*; D011188:Potassium / Q000032:analysis; D012639:Seeds / Q000737:chemistry*; D013054:Spectrophotometry, Atomic / Q000379:methods*
chemical_list: D007477:Ions; D008274:Magnesium; D011188:Potassium; D002118:Calcium