A numerical simulation and high-speed photographic study of the audio-frequency noise in an analytical ICP source

Abstract

Signal noise is a crucial factor connecting instrument design and analytical performance in ICP-MS. The audio-frequency (a.f.) noise observed in the signal noise power spectra is caused by the turbulent...

Atomic spectrometry update: review of advances in atomic spectrometry and related techniques

“…Xie et al 96 numerically modelled the gas dynamics in a an ICP generated with a Fassel-type torch. A high-speed camera was used to image the gas pulsation, which was found to be insensitive to: sample type; sample gas flow rate; and auxiliary flow rate, but increased with the r.f.…”