Development of a sensitive monitor for hydrazineThe development of hand-held, ambient-temperature instruments that utilize ion mobility spectrometry (IMS) in the detection of hydrazine and monomethylhydrazine is reviewed. A development effort to eliminate ammonia interference through altering the ionization chemistry, based on adding 5-nonanone as dopant in the ionization region of the IMS, is presented. Calibration of this instrument conducted before and after STS-37 revealed no more than a 5 percent difference between calibration curves, without any appreciable loss of equipment function.
Document ID
19920039173
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Eiceman, Gary A. (New Mexico State University Las Cruces, United States)
Limero, Thomas (New Mexico State Univ. Las Cruces, NM, United States)
James, John T. (NASA Johnson Space Center Houston, TX, United States)