Hydride preconcentration for inductively coupled plasma optical emission spectrometry. Interim report
Technical Report
·
OSTI ID:5739244
Studies are presented describing an improved application of the NaBH4 reduction of soluble arsenite to form arsine as a preconcentration approach for ultra-trace level arsenic determination by inductively coupled plasma optical emission spectrometry (ICP-OES). Specialized analyte introduction techniques are described for elimination of reaction by-products that would normally extinguish a medium power plasma discharge. An approach is presented to minimize the need for back ground correction and facilitate a superior arsenic detection limit (< or = 0.03 ng/mL) in a relatively inexpensive 1.2 kW ICP system.
- Research Organization:
- Arizona Univ., Tucson (USA). Dept. of Chemistry
- OSTI ID:
- 5739244
- Report Number(s):
- AD-A-067864
- 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 SPECTRA
ABSORPTION SPECTROSCOPY
ARSENIC
BOROHYDRIDES
BORON COMPOUNDS
CHEMICAL REACTIONS
ELEMENTS
EMISSION SPECTROSCOPY
HYDRIDES
HYDROGEN COMPOUNDS
LABORATORY EQUIPMENT
REDUCTION
SAMPLERS
SAMPLING
SEMIMETALS
SENSITIVITY
SPECTRA
SPECTROSCOPY
TRACE AMOUNTS
400104* -- Spectral Procedures-- (-1987)
ABSORPTION SPECTRA
ABSORPTION SPECTROSCOPY
ARSENIC
BOROHYDRIDES
BORON COMPOUNDS
CHEMICAL REACTIONS
ELEMENTS
EMISSION SPECTROSCOPY
HYDRIDES
HYDROGEN COMPOUNDS
LABORATORY EQUIPMENT
REDUCTION
SAMPLERS
SAMPLING
SEMIMETALS
SENSITIVITY
SPECTRA
SPECTROSCOPY
TRACE AMOUNTS