FIELD-EVALUATION OF THE SULFUR CHEMILUMINESCENCE DETECTOR

A field evaluation of the sulfur chemiluminescence detector (SCD) as a real-time total atmospheric sulfur detector is presented. The SCD was installed in a monitoring trailer along with a flame photometric detector (FPD), fluorescent SO2 monitor (Fluor), and a suite of other monitoring instruments. The performance of the analyzers was compared for (1) baseline stability, (2) response stability, (3) interferences, (4) sensitivity, and (5) environmental temperature effects. The SCD exhibited the best baseline stability and sensitivity, but had a drift in sensitivity larger than the other analyzers. The FPD and Fluor both showed interference effects, but none were observed for the SCD. Ambient temperature variations altered both the baseline and sensitivity of the FPD and the sensitivity of the Fluor. The SCD showed no ambient temperature dependence on either the baseline or sensitivity. © 1990, American Chemical Society. All rights reserved.