Photodiode Array Studies of near Infrared and Red Atomic Emissions of C, H, N, and O in the Argon Inductively Coupled Plasma

Preliminary qualitative multielemental inductively coupled plasma atomic spectra of C, H, N, and O are presented using a low dispersion, near infrared and red photodiode array spectrometer. Simple spectra of reasonable intensity are obtained with short (4 ms) integration times. Sensitivity and dispersion considerations are sharply contrasted with those conventionally associated with ultraviolet photodiode array spectra of metals in the inductively coupled plasma.