The Characterization of an Electrothermal Vaporization-Direct Current Plasma Atomic Emission Spectrometer for the Determination of Boron, Cadmium, Copper, Iron, and Lead

Timothy S Schroeder; Andrew R Mahon; Timothy S Conver; Tricia Hahn; Kristine Ramsay; Tracy Ambrose; Steven C Ringwald; Grayden Johnson; David L McCurdy

doi:10.1081/SL-120030852

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The Characterization of an Electrothermal Vaporization-Direct Current Plasma Atomic Emission Spectrometer for the Determination of Boron, Cadmium, Copper, Iron, and Lead

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The Characterization of an Electrothermal Vaporization-Direct Current Plasma Atomic Emission Spectrometer for the Determination of Boron, Cadmium, Copper, Iron, and Lead

Timothy S Schroeder, Andrew R Mahon, Timothy S Conver, Tricia Hahn, Kristine Ramsay, Tracy Ambrose, Steven C Ringwald, Grayden Johnson and David L McCurdy

Spectroscopy Letters, Vol.37(2), pp.175-190

01/04/2004

DOI: 10.1081/SL-120030852

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Abstract

A graphite rod electrothermal vaporizer used to introduce microliter-sized samples into a direct current plasma (DCP) atomic emission spectrometer is reported in this work. Several important experimental conditions were found to be important in achieving good analytical performance from the electrothermal vaporization (ETV-DCP) system. A combination of lowered plasma electrode sleeve gas flow rates, when compared to that commonly used in the DC plasma jet, and relatively low carrier gas flow rates resulted in very good analytical performance. Relative precision for the ETV-DCP instrument using B, Cd, Cu, Fe, and Pb solutions ranged between 4% and 10%. Limits of detection (LOD) lower than 100 pg were achieved for these elements, roughly an order of magnitude better than other ETV-DCP studies that used commercial graphite boat/furnace combinations. In addition, good calibration linearity was observed, with 2-4 orders of magnitude linearity for the elements investigated.

Direct current plasma

Electrothermal vaporization

Atomic emission spectrometry

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Details

Title: Subtitle: The Characterization of an Electrothermal Vaporization-Direct Current Plasma Atomic Emission Spectrometer for the Determination of Boron, Cadmium, Copper, Iron, and Lead
Creators: Timothy S Schroeder - Department of Physical Science & Technology , Southern Arkansas University
Andrew R Mahon - Department of Biological Sciences , Old Dominion University
Timothy S Conver - Cardinal Health
Tricia Hahn - Division of Science , Truman State University
Kristine Ramsay - Division of Science , Truman State University
Tracy Ambrose - Division of Science , Truman State University
Steven C Ringwald - Eastman Chemical Co
Grayden Johnson - Sigma Chemical Co
David L McCurdy - Division of Science , Truman State University
Resource Type: Journal article
Publication Details: Spectroscopy Letters, Vol.37(2), pp.175-190
DOI: 10.1081/SL-120030852
ISSN: 0038-7010
eISSN: 1532-2289
Publisher: Taylor & Francis Group
Language: English
Date published: 01/04/2004
Academic Unit: Chemistry
Record Identifier: 9983985873502771

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