with an automated ion selective electrode ise system this system included three orion ion selective electrodes sulfide ammonium and hydrogen ions maintained at 25 u00b0 c in a constant temperature water bath chemical mixing equipment and electronic output instrumentation the liquid streams were analyzed for co 2 with a beckman model 915 total inorganic carbon tic analyzer both the ion selective electrode system and the inorganic carbon analyzer were rountinely calibrated between analyses in order to minimize instrument drift vapor streams were analyzed for co 2 air and water with a hewlett packard model 530a gas chromatograph gc equipped with a thermal conductivity tc detector a 1 8 in teflon lined aluminum column packed with chromosorb 104 was installed in this chromatograph this instrument was calibrated in the field to give a quantitative analysis for co 2 water and air were analyzed qualitatively only a wet chemical method was used to analyze for h 2 s in the vapor the sampling train consisted of two cold bubblers in series followed by a dessicant tube to collect residual water the h 2 s was collected in 2 n naoh with ascorbic acid added as an antioxidant and analyzed with the selective ion electrode system table ii__________________________________________________________________________ammonia fixation simulationtest results at 1 9 to 2 8 psia h sub 2 s h sub 2 s co sub 2programsteam water over ppmw in ppmw in ppmw intest no feed feed heads bottoms bottoms condensate bottoms__________________________________________________________________________1 128 110 126 112 lt lt 1 1202 128 110 115 123 lt lt 1 1103 127 110 120 117 lt lt 1 1104 127 120 109 138 lt lt 1 1.