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Electrochemical Gas Sensors for Mine Atmospheres: Portable Detectors for Carbon Monoxide and for Nitric Oxide/nitrogen Dioxide Mixtures.

Authors
Kosek-JA; Bruckenstein-S
Source
NTIS: PB/81-214934 :212 pages
Link
NIOSHTIC No.
10002124
Abstract
A portable detector for mixtures of nitric oxide and nitrogen dioxide was developed using a porous silver cathode in sulfuric acid supporting electrolyte. Nitrogen dioxide was determined in the gas stream by electro-reduction. The nitric oxide in the gas stream was oxidized to nitrogen dioxide by passing it over cr (VI) on firebrick. Electroreduction gave the sum of no + NO2. Analog circuitry was used to display the amounts of no and NO2 separately. Two ranges available for each gas were, in parts per million, 0 to 10 and 0 to 50 for no, and 0 to 2 and 0 to 10 for NO2.
Publication Date
19790101
Document Type
CP; Final Contract Report;
Fiscal Year
1979
NTIS Accession No.
PB81-214934
NTIS Price
A11
Identifying No.
OFR 58-81
NIOSH Division
PRC;
Source Name
NTIS: PB/81-214934
State
NY;
Performing Organization
State Univ. of New York
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