Extractive spectrophotometric method for the determination of vanadium(V) in steels and titanium base alloy
Journal Article
·
· Anal. Chem.; (United States)
Vanadium(V) forms anionic chelates with 4-(2-pyridylazo)-resorcinol (PAR) at pH 5.0-7.8, which can be quantitatively extracted into nitrobenzene as an ion pair with xylometazolonium cation (XMH). The ternary system has an absorption maximum at 540 nm and obeys Beer's law in the range 0-1.8 /sup +/g of vanadium/mL with a molar absorptivity 4.56 x 10/sup 4/ L mol/sup -1/ cm/sup -1/. The Job's method of continuous variations indicated a composition of 1:1:1 for vanadium: PAR:XMH for the extracting species. In the presence of 1,3-diaminocyclohexanetetraacetic acid as a masking agent, the extraction becomes highly selective, and this method can be applied for the determination of vanadium(V), in the presence of various metal ions in synthetic mixtures, in steels, and in titanium base alloy.
- Research Organization:
- Nagarjuna Univ., India
- OSTI ID:
- 5630620
- Journal Information:
- Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 58:7; ISSN ANCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400104* -- Spectral Procedures-- (-1987)
ABSORPTION SPECTROSCOPY
ALLOYS
AROMATICS
CHELATES
CHEMICAL ANALYSIS
COMPLEXES
DATA
DEVELOPERS
ELEMENTS
EXPERIMENTAL DATA
EXTRACTION
HYDROXY COMPOUNDS
INFORMATION
IRON ALLOYS
IRON BASE ALLOYS
METALS
NUMERICAL DATA
ORGANIC COMPOUNDS
PH VALUE
PHENOLS
POLYPHENOLS
QUANTITATIVE CHEMICAL ANALYSIS
RESORCINOL
SEPARATION PROCESSES
SOLVENT EXTRACTION
SPECTROSCOPY
STEELS
TITANIUM ALLOYS
TITANIUM BASE ALLOYS
TRANSITION ELEMENTS
VANADIUM
400104* -- Spectral Procedures-- (-1987)
ABSORPTION SPECTROSCOPY
ALLOYS
AROMATICS
CHELATES
CHEMICAL ANALYSIS
COMPLEXES
DATA
DEVELOPERS
ELEMENTS
EXPERIMENTAL DATA
EXTRACTION
HYDROXY COMPOUNDS
INFORMATION
IRON ALLOYS
IRON BASE ALLOYS
METALS
NUMERICAL DATA
ORGANIC COMPOUNDS
PH VALUE
PHENOLS
POLYPHENOLS
QUANTITATIVE CHEMICAL ANALYSIS
RESORCINOL
SEPARATION PROCESSES
SOLVENT EXTRACTION
SPECTROSCOPY
STEELS
TITANIUM ALLOYS
TITANIUM BASE ALLOYS
TRANSITION ELEMENTS
VANADIUM