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

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)279-285
Number of pages7
JournalAnalytica Chimica Acta
Volume278
Issue number2
DOIs
Publication statusPublished - 1993

Fingerprint

Arsenic
Microwaves
Hydrides
arsenic
Plasmas
plasma
arsenite
Liquid nitrogen
Photodiodes
Spectrometry
Byproducts
spectrometry
Limit of Detection
Spectrum Analysis
Nitrogen
Detectors
liquid
nitrogen
microwave
arsine

Cite this

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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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Application of hydride generation to the determination of trace concentrations of arsenic by capacitively coupled microwave plasma. / Hueber, Dennis M.; Masamba, Wellington R.L.; Spencer, Bill M.; Winefordner, James D.

In: Analytica Chimica Acta, Vol. 278, No. 2, 1993, p. 279-285.

Research output: Contribution to journalArticle

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T1 - Application of hydride generation to the determination of trace concentrations of arsenic by capacitively coupled microwave plasma

AU - Hueber, Dennis M.

AU - Masamba, Wellington R.L.

AU - Spencer, Bill M.

AU - Winefordner, James D.

PY - 1993

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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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JO - Analytica Chimica Acta

JF - Analytica Chimica Acta

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