摘要
采用ICP-AES法(电感耦合等离子体发射光谱法)测定苦荞麦中Fe、Cr、Hg、Pb、Cu、Zn、As、Cd、Ca、Mg、Sn、Mo、Se等13种矿物元素,并采用高压消化罐法、干法进行样品处理。试验表明,高压消化罐消化样品消化完全、省时、省力、环保,而且精密度高,测定值准确,该方法的回收率为96%~102%,RSD小于5%。并通过与普通小麦的对比分析,发现苦荞麦中Fe、Cr、Ca、Mg、Se等对人体有功能作用的元素均高于普通小麦。
The contents of Fe, Cr, Hg,Pb, Cu, Zn, As,Cd, Ca, Mg,Sn, Mo, Se in tartary buckwheat were determined by inductively coupled plasma Atomic-emission spectroscopy (ICP- AES). Samples were processed separately by the high-pressure digestion method and the dry method. The results showed that samples could be digested fully through the high-pressure digestion method, and featured with time saving, labor saving, environmental protection, high precision and accurate measured value. The recovery rate by this method was 96% ~ 102% and the relative standard deviation (RSD) was less than 5%. The results also indicated the contents of inorganic elements (Fe, Cr, Ca, Mg, Se) beneficial to human health in tartary buckwheat were higher than that of the ordinary wheat.
出处
《粮食与饲料工业》
CAS
北大核心
2008年第8期45-46,共2页
Cereal & Feed Industry