LUMINESCENT METHOD FOR DETERMINATION OF DYSPROSIUM Russian patent published in 2002 - IPC

Abstract RU 2186028 C1

FIELD: analytical methods. SUBSTANCE: dysprosium is converted into complex compound with organic reagent, in particular sulfosalicyl-S-(4- bromoanylide) methyl ester, in presence of cationic surfactant, namely decylpyridinium chloride. Dysprosium/organic solvent/surfactant ratio is 1: 2: 20, pH = 7.8 +/- 0.08. Simultaneously, Tb, Dy, Sm, and Eu can be determined. EFFECT: increased selectivity and reproducibility. 2 cl

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RU 2 186 028 C1

Authors

Ul'Basheva R.D.

Alakaeva L.A.

Naurzhanova F.Kh.

Ehl'Cheparova S.A.

Gurdaliev Kh.Kh.

Dates

2002-07-27—Published

2001-03-19—Filed