摘要
取自蒙古国境内,自然放牧和喂食添加稀土饲料的羊,宰杀后,立即取出内脏,利用微波消解仪溶解样品,电感耦合等离子体质谱法测定其中的稀土元素。研究了稀土元素在心、肝、脾、胃、肾中的分布特征。结果表明,稀土总量∑REE0.31μg/g^4.59μg/g,平均为1.85μg/g,轻重稀土比值在5.10~19.57之间,平均为11.88,由LREE/HREE值可以看出轻稀土含量明显高于重稀土,这可能与包头地区的稀土分布有关;用稀土饲料喂养的羊的内脏中的稀土含量明显优于自然放牧的,尤其是肝和肾;包头地区的稀土主要以轻稀土为主,只有少量的重稀土,但肝脏中Gd、Tb、Er通过稀土饲料喂养后,相对富集;肾脏中Gd、Tb、Dy、Er、Y通过稀土饲料喂养后,相对富集。
The sample was dissolved by microwave digestion instrument, and determination of rare earth elements in sheep viscera was conducted by inductively coupled plasma mass spectrometry. Distribution characteristics of rare earth elements in heart, liver, spleen, stomach and kidney of sheep was investigated. The results show that the total REE content in sheep viscera is 0.31 × 10-6 -4.59 × 10-6 ,the average is 1.85× 10-6 ,the light REE and heavy REE ratio is between 5.10 - 19.57 with the average of 11.88, thus the light rare earth content is significantly higher than that of heavy rare earth. Levels of rare earth in viscerac （ especially in liver and kidney） of sheep eating feed containing rare earth are significantly higher than that merely grassed. Concentrations of Gd ,Tb,Er in liver and Gd ,Tb, Dy, Er,Y in kidney are higher than that in Bsotou rare earth ore.
出处
《稀土》
EI
CAS
CSCD
北大核心
2016年第6期134-138,共5页
Chinese Rare Earths
