Use of solid extractants based on DI-2 ethylhexylphosphoric acid for preconcentration and separatio of beryllium in luminescence and photometric determination

Journal Article · Tue Oct 01 04:00:00 EDT 1985 · J. Anal. Chem. USSR (Engl. Transl.); (United States)

OSTI ID:6953430

Bykhovtsova, I V; Bykhovtsova, T T; Tserkovnitskaya, I A

A solid extractant based on D2EHPA is used for preconcentration and separation of beryllium from interfering elements in its determination in different natural and industrial materials. Beryllium was determined by luminescence or by photometric method, using chlorophosphonazo R (4-(4-chloro-2-phosphonophenyl)azo)-3-hydroxy-2,7-naphthalendisulfonic acid) as reagents. It is shown that beryllium can be separated from other elements on a solid extractant under both dynamic and static conditions by stirring the solution with a magnetic stirrer or by shaking the solution with the extractant. It was found that under optimal absorption conditions of beryllium Al, Co(II), Ni, Cr(III), Zn, Pb, Mn(II), Re(VII), Ba, Ca, Mo, Fe(II), Nb(V), and Ta(V) are practically not extracted by the solid extractant and their presence does not influence the behavior of beryllium at pH 2-3. A determination of beryllium in natural waters is also performed.

• Research Organization: A.A. Zhdanov Leningrad State Univ.
• OSTI ID: 6953430
• Journal Information: J. Anal. Chem. USSR (Engl. Transl.); (United States), Journal Name: J. Anal. Chem. USSR (Engl. Transl.); (United States) Vol. 40:5,PT. 1; ISSN JACUA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
ALKALINE EARTH METALS
BERYLLIUM
ELEMENTS
ESTERS
EXTRACTION
EXTRACTIVE METALLURGY
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
LUMINESCENCE
METALLURGY
METALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
ORGANIC SOLVENTS
ORGANIC SULFUR COMPOUNDS
PHOSPHONIC ACID ESTERS
PHOSPHORIC ACID
PHOTOMETRY
QUANTITY RATIO
SEPARATION PROCESSES
SOLVENT EXTRACTION
SOLVENTS
SULFONIC ACIDS