[Simultaneous analysis of multi-elements in vegetation oils by inductively coupled plasma atomic emission spectrometry].
A simple, accurate and sensitive method for the simultaneous analysis of eleven trace elements (Fe, Cu, Co, Ni, Pb, Al, Zn, Cd, Cr, Mn and Mg) in vegetation oils by ICP-AES has been developed. The oils were digested by H2 SO4 ashing method. The detection limits (MDLs) of the method for the eleven elements were in the range of 0.1-3.6 microg x kg(-1). The average recoveries at three concentrations of 0.1, 0.5 mg x kg(-1) were between 70.4% and 113% with the RSD in the range of 1.01%-10.6%. The proposed method has been applied to the determination of the above elements in soy, peanut, sesame, rape, tea and blended oils with satisfactory results.
Guo
Lan
L
Key Laboratory of Food Science of Ministry of Education, Nanchang University, Nanchang 330047, China.
Xie
Ming-Yong
MY
Yan
Ai-Ping
AP
Xiahou
Jian-Yun
JY
D010938:Plant Oils / Q000737:chemistry*; D011786:Quality Control; D013054:Spectrophotometry, Atomic / Q000379:methods*; D014131:Trace Elements / Q000032:analysis*
D010938:Plant Oils; D014131:Trace Elements