Preliminary results with a high-resolution inductively coupled plasma Fourier transform spectrometer

Abstract

This paper presents some preliminary results obtained by monitoring the optical emission from an argon radiofrequency inductively coupled plasma using a Fourier transform spectrometer. The system is shown to be capable of obtaining high (picometer) resolution data over a large wavelength range (>100 nm) in a relatively short period of time (ca. 6 min). The possibility of monitoring several wavelengths simultaneously in order to provide an averaged emission value for a particular element is analysed and results are presented to show that this can offer some improvement in signal to noise ratio.