Environmental status of bismuth and its trace analysis in alloys plant tissues, animal tissues and waters as ternary complex with N-p-methoxyphenyl-2-furylacrylohydroxamic acid and a pyridylazo reagent
A new series of reagents, N-phenyl-2-furylacrylohydroxamic acid and its eight analogues, together with eight pyridylazo reagents, were explored for the selective extraction and sensitive spectrophotometric determination of bismuth (III) in standard alloys and environmental matrices. Bismuth was first extracted with a hydroxamic acid into chloroform and a pyridylazo reagent was added to the extract to form an intensely colored ternary complex for spectrophotometric analysis. The combination of N-p-methoxyphenyl-2-furylacrylohydroxamic acid (MFHA) and 5-iodo-5-(dimethylamino)-2-(2-pyridylazo) phenol (IDEPAP) provided the maximum selectivity and sensitivity (epsilon = 6.5 x 10/sup 4/ 1 mol/sup -1/ cm/sup -1/ at 590 nm). The enrichment attained through solvent extraction together with the intense color of the ternary complex enabled analysis of bismuth at levels of 1ppb (0.001 ppm) and lower.
- Research Organization:
- Centre for Water Resources Development and Management, Kerala (India)
- OSTI ID:
- 7148914
- Journal Information:
- Anal. Lett.; (United States), Journal Name: Anal. Lett.; (United States) Vol. 21:3; ISSN ANALB
- Country of Publication:
- United States
- Language:
- English
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400102 -- Chemical & Spectral Procedures
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520200 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
550200 -- Biochemistry
59 BASIC BIOLOGICAL SCIENCES
ABSORPTION SPECTROSCOPY
ALLOYS
AMINES
BISMUTH
BODY
CHEMICAL ANALYSIS
COMPLEXES
DATA
ELEMENTS
EXPERIMENTAL DATA
EXTRACTION
HYDROGEN COMPOUNDS
HYDROXAMIC ACIDS
HYDROXY COMPOUNDS
INFORMATION
METALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
QUANTITATIVE CHEMICAL ANALYSIS
SEPARATION PROCESSES
SOLVENT EXTRACTION
SOLVENT PROPERTIES
SPECTROSCOPY
TISSUES
TRACE AMOUNTS
WATER