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据报道,1980年K.Jung,H.Specker 曾以乙醚/P_(204)硝酸(体积比为100:3:2)作展开剂,用薄层色谱法分离了若干稀土元素。1984年郁嘉妹等也用薄层色谱法分离了轻、重稀土中的一些元素。本文乃以P_(204)/二氧六圜/乙酸乙酯/硝酸(体积比为1.1:2.0:2.4:0.4)作展开剂,用硅胶H/硝酸铵/羧甲基纤维素(CMC)(重量比为5.0:0.64:0.16)薄层板,在重稀土存在下,一次展开,很好地分离了镧、铈、镨、钕、钐等轻稀土元素。这给独居石矿样中轻稀土的定性和定量分析开辟了一条新途径。
It has been reported that in 1980, K. Jung, H. Specker used ether / P 204 nitric acid (volume ratio of 100: 3: 2) as a developing agent, and separated several rare earth elements by thin layer chromatography. In 1984, Yu Jiamei et al. Also separated some elements from light and heavy rare earths by thin-layer chromatography. In this paper, silica gel H / ammonium nitrate / carboxymethylcellulose (CMC) (P (superscript 2 +) / H 2 O 3 / Weight ratio of 5.0: 0.64: 0.16) lamella, in the presence of heavy rare earth, once unfolded, a good separation of lanthanum, cerium, praseodymium, neodymium, samarium and other light rare earth elements. This opens up a new avenue for qualitative and quantitative analysis of light rare earths in monazite ore samples.