Precision of NO2 Photolysis Rate Measurements Russell R. Dickerson”’ and Donald H. Stedman Department of Chemistry, The University of Michigan, Ann Arbor, Michigan 48109
Gas-phase kinetic calculations indicate that actinometric measurements of the rate of solar photolysis of NO2 in nitrogen can be in error by +5 to -15% or more, unless odd oxygen, NzO5 chemistry, and trace oxygen content are considered. A field experiment,confirms that the effect of the quartz tube on the measured Dhotolvsis rate is
