Hydride Preconcentration for Inductively Coupled Plasma Optical Emission Spectrometry
- 1 July 1979
- journal article
- research article
- Published by SAGE Publications in Applied Spectroscopy
- Vol. 33 (4), 399-404
- https://doi.org/10.1366/0003702794925561
Abstract
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. 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 background correction and facilitate a superior arsenic detection limit (≤0.03 ng/ml) in a relatively inexpensive 1.2 kW inductively coupled plasma system.Keywords
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