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- W2387647688 abstract "The present paper aims at introducing the passive sampling incorporating UV method for measuring ozone concentrations in ambient air. It is a common sense that sodium nitrite can be used for measuring the performance of an ozone passive sampler as a trapping reagent, which can in turn be used by UV method. What the passive sampling has to measure is the daily average ozone concentration. Our measuring results show that the extent of measured ozone concentration is from 20 to 100 μg/m~3 and the linear extent of nitrate concentration is from 0 to 0.6 mmol/L. Since the excessive sodium nitrite is added to the absorbing aqua, both nitrite and nitrate have the absorption at 220 nm with UV method. When nitrate concentrations are measured, nitrite can be a source of serious interference. However sulfamic acid can offset its interference effectively, as shown in our experiment, in so far as the nitrite concentration is within 0 to 0.8 mmol/L. Thus, the experiments demonstrate that our method is suitable for measuring ozone inside and outside under all climatic conditions." @default.
- W2387647688 created "2016-06-24" @default.
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- W2387647688 date "2004-01-01" @default.
- W2387647688 modified "2023-09-28" @default.
- W2387647688 title "Passive sampling incorporating UV method for measuring ozone concentrations in ambient air" @default.
- W2387647688 hasPublicationYear "2004" @default.
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