Gow-Mac Instrument's series 900 toxic gas analyser is a highly selective and precise analytical instrument engineered for quantifying trace amounts of toxic gases in industrial gas applications
The principle of this automated, fully digital instrument is based on aqueous scrubbing of the target gas by a coil sampler coupled with a gas-liquid separator, followed by derivatisation of the analyte to form a highly light-absorbing chromophore in an on-line reactor.
The derivative is then quantified by means of a colorimetric detector.
Any gas species with potential to be derivatised can be determined by the series 900 toxic gas analyser; eg: HF, NH3, HONO, HCl, SO2, H2S, HCHO and aldehydes, etc.
The analyser is not only able to determine trace level toxic gases in air, but also to quantify the ppb/ppm level impurities in industrial processing and electronic gases, such as N2, N2O, NF3, CxHy, etc.
Custom applications based upon the customer's specific needs are available for evaluation upon request.
Features of the series 900 include continuous, digital readout; uses standard chemical procedures; colorimetric detector; internal sample pump; adjustable flow rate and light intensity; 4-20mA or voltage output; is entirely self-contained in a 19inch rack mount design; and has a detection range of 5ppb to 10ppm (application dependent).