A simple titration technique for determining atomic hydrogen concentrations in fast flow discharge systems

✍ Scribed by Tadeusz E. Kleindienst; Barbara J. Finlayson-Pitts

• Publisher: Elsevier Science
• Year: 1979
• Tongue: English
• Weight: 602 KB
• Volume: 61
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(79)80648-x

✦ Synopsis

Hydrogen atom concentrations are typifaily determined in flow dischxge systems by adding NO2 and following the reaction H + NO* -. OH + NO. We show that the increase in the hydroxyl radical concentrations with increased NO2 concentrations also can be used lo measure initiaI hydrogen atom concentrations in the range = (0.5-S) X lo'* moIeculescm-3_ This technique. accurate to f: 20%. is comenient in rhat atomic hydrogen. v.hich is more difticuh to detect than OH, need not be fdowcd directly_ I _ Introduction In fast Bow discharge systernx, atomic hydrogen is frequentIy used as P precursor for the production of