Extraction, spectrophotometric, and atomic absorption spectrophotometric determination of selenium with n-phenylbenzohydroxamic acid

Journal Article · Tue Dec 31 23:00:00 EST 1985 · Anal. Lett.; (United States)

DOI:https://doi.org/10.1080/00032718608066238· OSTI ID:6143006

Agrawal, Y K; Desai, K H

Solvent extraction spectrophotometric and atomic absorption spectrophotometric methods for the determination of selenium(IV) in microgram quantities are described. The selenium(IV) forms yellow colored complex with N-phenylbenzohydroxamic acid (PBHA) extractable into chloroform from 7 M HClO/sub 4/. Se-PBHA complex has maximum absorbance at 345 nm with a molar absorptivity 1.5 x 10/sup 5/ l mol/sup -1/ cm/sup -1/ and Sandell's sensitivity 0.000526 ..mu..g/cm/sup 2/. Effect of molarity, reagent concentration, diverse ions of the extraction of selenium complex were studied. The selenium is determined in presence of tellurium. 20 references, 5 tables.

• Research Organization: Univ. of Baroda, India
• OSTI ID: 6143006
• Journal Information: Anal. Lett.; (United States), Journal Name: Anal. Lett.; (United States) Vol. 19:1-2; ISSN ANALB
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400104* -- Spectral Procedures-- (-1987)
400105 -- Separation Procedures
ABSORPTION SPECTROSCOPY
AMINES
COMPLEXES
DATA
ELEMENTS
EXPERIMENTAL DATA
EXTRACTION
HYDROXAMIC ACIDS
HYDROXY COMPOUNDS
INFORMATION
NUMERICAL DATA
ORGANIC COMPOUNDS
SELENIUM
SELENIUM COMPLEXES
SEMIMETALS
SEPARATION PROCESSES
SOLVENT EXTRACTION
SPECTROPHOTOMETRY
SPECTROSCOPY
TELLURIUM
TRACE AMOUNTS