Laser-Induced-Fluorescence Detection of Sodium Atomized by a Microwave-Induced Plasma with Tungsten Filament Vaporization

Yuji Oki, Hisanori Uda, Chikahisa Honda, Mitsuo Maeda, Jun Izumi, Takashi Morimoto, Masazumi Tanoura

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

The laser-induced-fluorescence (LIF) technique is applied to the detection of Na atoms In pure water for a concentration range down to pg/cm3. Na compounds are dissociated by a microwave-Induced plasma of He with a tungsten filament vaporization system. Calibrating the absolute density at the observing region, the efficiency of this atomizer Is estimated. It Is shown that the atomizer can generate high atomic densities by filament heating. For example, the number density reaches 107 atoms/cm3 for a 10-μL sample of 1 pg/cm3.

Original languageEnglish
Pages (from-to)680-683
Number of pages4
JournalAnalytical chemistry
Volume62
Issue number7
DOIs
Publication statusPublished - Mar 15 1990

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry

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