Abstract
An investigation was made of the absorption of nitrogen dioxide (NO 2) by the triethanolamine (TEA) plate method, which is simple for determination of NO 2 in air. NO 2, generated from a permeation tube was exposed to a TEA plate and to TEA-coated glass beads. One of the reaction products was found to be N-nitrosodiethanolamine (NDEA). It was also detected on a TEA plate subjected to exposure to NO 2 in air, as in the case with the permeation tube reaction. The product was positive to the Liebermann nitroso reaction, and the product and NDEA synthesized by NO 2 and diethanolamine were identified by gas chromatography, gas chromatography—mass spectrometry and UV spectrometry.
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