Application of hydride generation to the determination of trace concentrations of arsenic by capacitively coupled microwave plasma

Dennis M. Hueber; Wellington R.L. Masamba; Bill M. Spencer; James D. Winefordner

doi:10.1016/0003-2670

Application of hydride generation to the determination of trace concentrations of arsenic by capacitively coupled microwave plasma

Dennis M. Hueber, Wellington R.L. Masamba, Bill M. Spencer, James D. Winefordner

Chemical & Forensic Sciences

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

Studies are presented describing an application of the NaBH4 reduction of soluble arsenite to form arsine for ultra-trace level arsenic determination by capacitively coupled microwave plasma atomic emission spectrometry. The arsine was condensed in a liquid nitrogen cooled trap, and introduced into the plasma after the elimination of reaction by-products that would reduce the excitation efficiency of the plasma. Use of a photodiode array detector provided a means of background correction. The procedure resulted in a limit of detection of 110 pg and linear dynamic range of 104 for arsenic.

Original language	English
Pages (from-to)	279-285
Number of pages	7
Journal	Analytica Chimica Acta
Volume	278
Issue number	2
DOIs	https://doi.org/10.1016/0003-2670
Publication status	Published - 1993

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http://www.sciencedirect.com/science/article/pii/000326709385111V

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title = "Application of hydride generation to the determination of trace concentrations of arsenic by capacitively coupled microwave plasma",

abstract = "Studies are presented describing an application of the NaBH4 reduction of soluble arsenite to form arsine for ultra-trace level arsenic determination by capacitively coupled microwave plasma atomic emission spectrometry. The arsine was condensed in a liquid nitrogen cooled trap, and introduced into the plasma after the elimination of reaction by-products that would reduce the excitation efficiency of the plasma. Use of a photodiode array detector provided a means of background correction. The procedure resulted in a limit of detection of 110 pg and linear dynamic range of 104 for arsenic.",

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AU - Spencer, Bill M.

AU - Winefordner, James D.

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AB - Studies are presented describing an application of the NaBH4 reduction of soluble arsenite to form arsine for ultra-trace level arsenic determination by capacitively coupled microwave plasma atomic emission spectrometry. The arsine was condensed in a liquid nitrogen cooled trap, and introduced into the plasma after the elimination of reaction by-products that would reduce the excitation efficiency of the plasma. Use of a photodiode array detector provided a means of background correction. The procedure resulted in a limit of detection of 110 pg and linear dynamic range of 104 for arsenic.

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DO - 10.1016/0003-2670

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JO - Analytica Chimica Acta

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