Effect of Argon Atmosphere on Self-Absorption of a Spectral Line in Laser Microprobe Analysis
- 1 August 1990
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 29 (8R), 1568
- https://doi.org/10.1143/jjap.29.1568
Abstract
The effect of the reduced argon atmosphere on the self-absorption of a spectrum was studied with the use of a normal laser microprobe by changing the gas pressure and the observation height of spectral lines. At 150 Torr, a spectral line virtually free of self-absorption and a resultant high emission intensity were obtained about 1.5 mm above the sample surface. Using this condition, the linear calibration curve with unit slope was obtained for the analysis of copper (concentration:1–20%) in aluminium samples.Keywords
This publication has 8 references indexed in Scilit:
- Atomic Emission Characteristics of Laser-Induced Plasmas in an Argon Atmosphere at Reduced PressureApplied Spectroscopy, 1989
- Studies on the analysis precision of laser microprobe analyser. II. Improvement of analysis precision by correcting self-absorption.Journal of the Spectroscopical Society of Japan, 1987
- Characteristics of the plasma induced by the bombardment of N2 laser pulse at low pressuresSpectrochimica Acta Part B: Atomic Spectroscopy, 1984
- An assessment of the laser microprobe analyzer as a tool for quantitative analysis in atomic emission spectrometrySpectrochimica Acta Part B: Atomic Spectroscopy, 1979
- Studies on the Spectrochemical Analysis of Metal Samples by means of the Laser MicroprobeJournal of the Spectroscopical Society of Japan, 1974
- Atmospheric Influences on Q-Switched Laser Sampling and Resulting PlumesApplied Spectroscopy, 1971
- Effect of atmosphere on spectral emission from plasmas generated by the laser microprobeAnalytical Chemistry, 1971
- Laser induced plasmas for analytical spectroscopySpectrochimica Acta Part B: Atomic Spectroscopy, 1970