Observation of the frequency dependence of ICP radiation noise
- 14 February 1989
- journal article
- Published by IOP Publishing in Journal of Physics D: Applied Physics
- Vol. 22 (2) , 254-257
- https://doi.org/10.1088/0022-3727/22/2/003
Abstract
Radiation noise power spectra were measured at frequencies from 20 Hz up to 3 kHz in high-frequency inductively coupled plasma (ICP). Aerosol sample radiation excess noise compared to that of argon radiation at frequencies of about 2 kHz and lower was observed. This excess noise is interpreted as a modulation of the radiation intensity by evaporating aerosol droplets. Further understanding and measurements of the noise spectra can be useful in both sample flow and droplet evaporation rate studies and analysis of possible ways to reduce ICP sample radiation or fluorescence detection limits.Keywords
This publication has 10 references indexed in Scilit:
- A check on the continuity of analyte transport in the chemical ICP torchSpectrochimica Acta Part B: Atomic Spectroscopy, 1985
- Correlation of the analytical signal to the characterized nebulizer spraySpectrochimica Acta Part B: Atomic Spectroscopy, 1983
- Noise-power spectra of optical and acoustic emission signals from an inductively coupled plasmaSpectrochimica Acta Part B: Atomic Spectroscopy, 1982
- Analysis of the limiting noise and identification of some factors that dictate the detection limits in a low-power inductively coupled argon plasma systemSpectrochimica Acta Part B: Atomic Spectroscopy, 1981
- Noise power spectra of the inductively coupled plasmaSpectrochimica Acta Part B: Atomic Spectroscopy, 1980
- Characteristic noise spectra of some common analytical spectrometric sourcesAnalytical Chemistry, 1976
- Temperature determination in high−pressure sodium discharges by detection of rf thermal noiseJournal of Applied Physics, 1975
- Inductively coupled plasma-optical emission analytical spectrometryAnalytical Chemistry, 1974
- The behaviour of metal oxides injected into an argon induction plasmaCombustion and Flame, 1969
- Induction-Coupled Plasma Spectrometric Excitation Source.Analytical Chemistry, 1965