Issue 3, 1994

Direct solid sampling for analysis with inductively coupled plasma using a novel electronic spark source

Abstract

A solid sampling accessory, using a spark discharge for introduction of analyte material into an inductively coupled plasma (ICP) torch, has been developed. The device uses a novel electronic design which results in a dramatic simplification of the hardware compared with previously described arrangements. A simple cell consisting of a tungsten electrode adjacent to the sample in a flowing inert gas atmosphere completes the unit as an extremely compact benchtop accessory. This device has been optimized for stable operation over a minimum of 12 min; relative standard deviations for signals over that period are typically ⩽3%. Precisions of ⩽4% were found for the determination of trace elements in National Institute of Standards and Technology Standard Reference Materials with limits of detection in the single digit ppm range.

Article information

Article type
Paper

J. Anal. At. Spectrom., 1994,9, 263-266

Direct solid sampling for analysis with inductively coupled plasma using a novel electronic spark source

C. Webb, C. B. Cooper, A. T. Zander, J. T. Arnold, E. S. Lile and S. E. Anderson, J. Anal. At. Spectrom., 1994, 9, 263 DOI: 10.1039/JA9940900263

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