Spectrophotometric determination of erbium in a mixture with lanthanum by means of methylthymol blue and cetyltrimethylammonium bromide

Journal Article · Mon Oct 01 00:00:00 EDT 1973 · Zh. Anal. Khim., v. 28, no. 10, pp. 1958-1961

OSTI ID:4411017

Poluzktov, N S; Ovchar, L A; Lauer, R S

The formation of ternary complexes in the interaction of rare earth ions with methylthymol blue in the presence of cetyltrimethylammonium bromide has been studied spectrophotometrically. A pH range of the existence of the complexes and a component ratio have been determined. A method has been developed for determining Er/sub 2/O/sub 3/) in Er/sub 2/O/sub 3/ + La/sub 2/O/sub 3/. The method i s based on higher siability of yttrium group in comparison with lanthanum ones. The sensitivity is 1 to 2%. The coefficient of variation is 2 to 16%. (auth)

• Research Organization: Inst. of General and Inorganic Chemistry, Odessa
• NSA Number: NSA-29-009820
• OSTI ID: 4411017
• Journal Information: Zh. Anal. Khim., v. 28, no. 10, pp. 1958-1961, Journal Name: Zh. Anal. Khim., v. 28, no. 10, pp. 1958-1961; ISSN ZAKHA
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

*ERBIUM-- SPECTROPHOTOMETRY
AMMONIUM COMPOUNDS
BROMIDES
ERBIUM OXIDES
HYDROCARBONS
LANTHANUM
LANTHANUM OXIDES
METHYLTHYMOL BLUE
N40120* --Chemistry--Analytical & Separations Chemistry-- Chemical & Spectral Procedures
PH VALUE
QUANTITATIVE CHEMICAL ANALYSIS
QUATERNARY COMPOUNDS
SENSITIVITY