Study on the Determination of 28 Inorganic Elements in Sunflower Seeds by ICP-OES/ICP-MS
LIU Hong-wei1, QIN Zong-hui2, XIE Hua-lin2*, CAO Shu3
1. College of Material and Chemical Engineering, Hunan Institute of Technology, Hengyang 421002, China 2. College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100, China 3. Military Economic University of the Chinese People’s Liberation Army, Wuhan 430035, China
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.
Key words：Sunflower seeds;ICP-OES;ICP-MS;Trace elements
刘宏伟1，秦宗会2，谢华林2*，曹 恕3 . ICP-OES/ICP-MS测定葵花子中28种无机元素 [J]. 光谱学与光谱分析, 2013, 33(01): 224-227.
LIU Hong-wei1, QIN Zong-hui2, XIE Hua-lin2*, CAO Shu3 . Study on the Determination of 28 Inorganic Elements in Sunflower Seeds by ICP-OES/ICP-MS . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2013, 33(01): 224-227.
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