Citation
Nx. Wang et al., SIMULTANEOUS DETERMINATION OF NEODYMIUM, ERBIUM AND HOLMIUM IN RARE-EARTH MIXTURES WITH 2-PHENYLTRIFLUOROACETONE AND OCTYLPHENOL POLY(ETHYLENEGLYCOL) ETHER BY 3RD-DERIVATIVE SPECTROPHOTOMETRY, Talanta, 43(4), 1996, pp. 589-593
Citations number
13
Journal title
Talanta
ISSN journal
00399140
→ ACNP
Volume
43
Issue
4
Year of publication
1996
Pages
589 - 593
Database
ISI
SICI code
0039-9140(1996)43:4<589:SDONEA>2.0.ZU;2-C
Abstract
The complexes of the rare earth metals with 2-phenyltrifluoroacetone i
n the presence of TX-100 are reported. The characteristic absorbances
of neodymium, holmium and erbium complexes can be increased by factors
of 8.5, 31 and 15 respectively, compared to those of the cholrides. T
he third-derivative spectra have been used to eliminate the interferen
ce of cerium, and the sensitivities are increased again by factors of
7.4, 5.5 and 6.5. A method for the direct determination of neodymium,
erbium and holmium in rare earth mixtures is proposed.