發(fā)布時(shí)間：2019-01-01 21:29

【摘要】：取自蒙古國(guó)境內(nèi),自然放牧和喂食添加稀土飼料的羊,宰殺后,立即取出內(nèi)臟,利用微波消解儀溶解樣品,電感耦合等離子體質(zhì)譜法測(cè)定其中的稀土元素。研究了稀土元素在心、肝、脾、胃、腎中的分布特征。結(jié)果表明,稀土總量∑REE0.31μg/g~4.59μg/g,平均為1.85μg/g,輕重稀土比值在5.10~19.57之間,平均為11.88,由LREE/HREE值可以看出輕稀土含量明顯高于重稀土,這可能與包頭地區(qū)的稀土分布有關(guān);用稀土飼料喂養(yǎng)的羊的內(nèi)臟中的稀土含量明顯優(yōu)于自然放牧的,尤其是肝和腎;包頭地區(qū)的稀土主要以輕稀土為主,只有少量的重稀土,但肝臟中Gd、Tb、Er通過稀土飼料喂養(yǎng)后,相對(duì)富集;腎臟中Gd、Tb、Dy、Er、Y通過稀土飼料喂養(yǎng)后,相對(duì)富集。
[Abstract]:Sheep grazed and fed with rare earth feed were collected from Mongolia. After slaughtering, the viscera were taken out immediately, the samples were dissolved by microwave digestion apparatus, and the rare earth elements were determined by inductively coupled plasma mass spectrometry (ICP-MS). The distribution of rare earth elements in heart, liver, spleen, stomach and kidney was studied. The results show that the total amount of rare earth 鈭，

本文編號(hào)：2398123