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Citation: Ren Jimin, Jing Fengying, Zhang Shanrong, Pei Fengkui, Wang Wenyun. DETERMINATION OF RARE EARTH IN THE MIXTURE BY NMR[J]. Chinese Journal of Applied Chemistry, ;1993, 10(3): 72-74. shu

DETERMINATION OF RARE EARTH IN THE MIXTURE BY NMR

1.
Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022 Changchun

Received Date: 9 April 1992
Available Online: 17 June 1992
Fund Project:

The rare earth in its mixture has been determined by ¹H and ¹³C NMR in its aqueous halide solution. For samples containing only light lanthanides,both ¹H and ¹³C spectrometry can be used for quantitative determination of individual rare earth in the mixture. For samples containing heavy lanthanides, ¹H spectraometry is unsuitable for accurate determination due to the serious broadening and overlapping of the signals in the spectra and interference from water. ¹³C spectrometry,however,can be used successfully since each complex of Ln (NTA)₂ in the mixture has at least a unique well-re-solved peak.
- rare earth,
- nitrilotriacetate,
- complex
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