Development of techniques for measurement of gas-phase hydrogen peroxide
The techniques of measuring gas-phase hydrogen peroxide by impinger and diffusion scrubber have been extensively investigated. The mass transfer of collected peroxide in a diffusion scrubber is discussed. The equation describing collection of soluble substances by diffusion scrubber is given for low and high gas flow rates. Gaseous hydrogen peroxide in ambient air can be collected by impinger or scrubber without artifact formation of hydrogen peroxide if O/sub 3/ is first removed by gas-phase reaction with nitric oxide. Losses of gas-phase hydrogen peroxide in the sampling tubing and in the scrubber have been quantified. In sampling of gas-phase H/sub 2/O/sub 2/ in ambient air at Brookhaven National Laboratory and in Los Angeles, a total of 180 samples were collected by impinger and 330 by diffusion scrubber. The ambient levels and the diurnal variation of gas-phase H/sub 2/O/sub 2/ are discussed and perhaps indicate the range of observed H/sub 2/O/sub 2/ levels. Data collected simultaneously by impinger and scrubber collection methods are compared, and the causes of lower than predicted recovery efficiency from the scrubber are discussed. 24 refs., 15 figs., 11 tabs.
- Research Organization:
- Brookhaven National Lab., Upton, NY (USA)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 7200529
- Report Number(s):
- BNL-52138; ON: DE88009362
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
54 ENVIRONMENTAL SCIENCES
HYDROGEN PEROXIDE
MEASURING METHODS
AQUEOUS SOLUTIONS
COMPARATIVE EVALUATIONS
EFFICIENCY
EQUATIONS
GASES
MASS TRANSFER
RECOVERY
SCRUBBERS
DISPERSIONS
EQUIPMENT
FLUIDS
HYDROGEN COMPOUNDS
MIXTURES
OXYGEN COMPOUNDS
PEROXIDES
POLLUTION CONTROL EQUIPMENT
SOLUTIONS
400201* - Chemical & Physicochemical Properties
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)