An instrumental system to simultaneously detect one-dimensional atomic or ionic fluorescence images is described. The instrument can also be used to acquire laser light scattering images or laterally resolved emission images. The fluorescence, scattering, or emission image passes through a monochromator and is re-imaged on an intensified diode array detector. Measurement of spatially resolved ground-state populations in inductively coupled plasmas is discussed. Interpretation of the fluorescence data obtained under different plasma operating conditions is considered. Results with the use of laser-induced fluorescence imaging to study the effect of sample transport rate, concomitant species-induced matrix effects, and modulated power plasmas are discussed. Comparison of fluorescence and emission images shows the complementary nature of the information provided by each. Laser light scattering off intact droplets or particles in a 1.0-kW inductively coupled plasma is discussed. Means to minimize the scattering signal are evaluated. Detection of laser light scattering images is discussed.

PDF Article

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access OSA Member Subscription