Study on the Determination of Trace Elements in Bitter Almond by Inductively Coupled Plasma Mass Spectrometry
LIU Hong-wei1, XIE Hua-lin2*, NIE Xi-du1, 3
1. College of Material and Chemical Engineering, Hunan Institute of Technology, Hengyang 421002, China 2. College of Chemistry and Chemical Engineering, Yangtze Normal University, Fuling 408100, China 3. School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
Abstract：Samples of bitter almond were digested by microwave digestion, and trace elements amounts of B, Na, Mg, Al, P, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Se, Rb, Sr, Mo, Cd, Ba and Pb in sample solutions were determined by inductively coupled plasma mass spectrometry (ICP-MS). HNO3+H2O2 was used to achieve the complete decomposition of the organic matrix in a closed-vessel microwave oven. The working parameters of the instrument were optimized. The results showed that the relative standard deviation (RSD) was less than 4.79% for all the elements, and the recovery was 90.00%～109.30% by adding standard recovery experiment. This method was simple, sensitive and precise and can perform simultaneous multi-elements determination for bitter almond, which could satisfy the sample examination request and provide scientific rationale for determining inorganic elements in bitter almond.
Key words：Bitter almond;Inductively coupled plasma mass spectrometry;Microwave digestion;Trace elements
刘宏伟1，谢华林2*，聂西度1, 3 . ICP-MS法测定苦杏仁中微量元素的研究 [J]. 光谱学与光谱分析, 2013, 33(05): 1354-1356.
LIU Hong-wei1, XIE Hua-lin2*, NIE Xi-du1, 3 . Study on the Determination of Trace Elements in Bitter Almond by Inductively Coupled Plasma Mass Spectrometry. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2013, 33(05): 1354-1356.
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