Optimization and evaluation of reduction-aeration/amalgamation for the analysis of mercury in drinking-water by cold-vapour atomic absorption spectrometry (CVAAS)
Journal Article
·
· Anal. Lett.; (United States)
OSTI ID:5788802
A reduction-aeration method is optimized for the analysis of mercury at the ng.1/sup -1/-level in drinking-water. The parameters investigated are: the aeration time, the flow rate of the aeration-gas, the type of gas distributor, the amount of reductant and the mercury concentration. To improve the sensitivity, the mercury aerated is preconcentrated on a gold-coated quartz-sand absorber which is analyzed by thermal desorption and cold vapor-atomic absorption spectroscopy (CVAAS). In this way, the interference by water vapour is avoided and the calibration is simplified. 9 references, 4 figures, 3 tables.
- Research Organization:
- Rijksuniversiteit Gent, Belgium
- OSTI ID:
- 5788802
- Journal Information:
- Anal. Lett.; (United States), Journal Name: Anal. Lett.; (United States) Vol. 18:A2; ISSN ANALB
- Country of Publication:
- United States
- Language:
- English
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OSTI ID:214849
Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400104 -- Spectral Procedures-- (-1987)
400105* -- Separation Procedures
520200 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ABSORPTION SPECTROSCOPY
AERATION
CHALCOGENIDES
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
DATA
DECOMPOSITION
DESORPTION
DRINKING WATER
ELEMENTS
EXPERIMENTAL DATA
FLUIDS
GASES
GOLD
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
HYDROLYSIS
INFORMATION
INORGANIC ACIDS
LYSIS
MERCURY
METALS
MINERALS
NITRIC ACID
NUMERICAL DATA
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
QUANTITATIVE CHEMICAL ANALYSIS
QUARTZ
REDUCTION
SILICON COMPOUNDS
SILICON OXIDES
SOLVOLYSIS
SPECTROSCOPY
SULFURIC ACID
TIN
TRACE AMOUNTS
TRANSITION ELEMENTS
VAPORS
WATER
WATER VAPOR
400104 -- Spectral Procedures-- (-1987)
400105* -- Separation Procedures
520200 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ABSORPTION SPECTROSCOPY
AERATION
CHALCOGENIDES
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
DATA
DECOMPOSITION
DESORPTION
DRINKING WATER
ELEMENTS
EXPERIMENTAL DATA
FLUIDS
GASES
GOLD
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
HYDROLYSIS
INFORMATION
INORGANIC ACIDS
LYSIS
MERCURY
METALS
MINERALS
NITRIC ACID
NUMERICAL DATA
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
QUANTITATIVE CHEMICAL ANALYSIS
QUARTZ
REDUCTION
SILICON COMPOUNDS
SILICON OXIDES
SOLVOLYSIS
SPECTROSCOPY
SULFURIC ACID
TIN
TRACE AMOUNTS
TRANSITION ELEMENTS
VAPORS
WATER
WATER VAPOR