Beitr. Tabakforsch. Int./Contrib. Tob. Research, 2005, 21-7, p. 390-401., ISSN.0173-783X
A low-cost system for measuring ppb-level NO2
KT&G Research Institute, Daejeon, South Korea
A low-cost system to measure low-level nitrogen dioxide (NO2) in an atmosphere was developed. Its major component included a sensor comprising filter paper treated with 3,3'-dimethylbenzidine ( o -tolidine), a compound that reacts with NO2 to...