摘要

The production of radicals in the ozonolysis of ethene in air in a flow tube was monitored directly by a chemical amplification instrument at room temperature (298 2) K and 1 X 10(5) Pa. The radical yield is 0.50 +/- 0.08 (sigma) and found to be independent of CO. The result shows that the indirectly measured radical yields for the ozonolysis of ethene may be underestimated by a factor of 2.