Reduction of Acoustic Noise in ICP Emission by the Addition of a Chimney
- 1 September 1991
- journal article
- Published by SAGE Publications in Applied Spectroscopy
- Vol. 45 (8) , 1368-1371
- https://doi.org/10.1366/0003702914335869
Abstract
Noise-amplitude spectra were measured for inductively coupled plasma (ICP) atomic emission spectrometry. These spectra indicate that a significant reduction of noise in the emission signal can be obtained by positioning a chimney over the ICP discharge. In this fashion, noise was reduced in the 200–500 Hz region of the frequency spectrum. The chimney had little effect on flicker (1/f) noise.Keywords
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