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- W348570332 abstract "A single-column ion chromatographic method was developed for separation and detection of aqueous ammonia, C/sub 1/-, C/sub 2/-, and C/sub 3/- alkylamines, ethanolamine, and methyldiethanolamine. A precolumn concentrator was used to take detection of ammonium ion by electrical conductivity to fractional ppB levels and detection of the organic cations to ppB levels. Analysis of ppM ammonia levels in 3 wt % alkanolamine scrubber-type solutions was possible, but resolution of alkylamines was lost. A post-column reaction system for fluorescence detection of primary amine o-phthalaldehyde derivatives with reversed-phase separation allowed amine separation in the presence of large amounts of ammonia. The same system might be used in place of concentration and conductivity for determination of the alkylamine levels. A large variety of oil shale retort by-product waters and one underground coal gasification condensate were screened for alkylamines, but none were detected. 7 refs., 8 figs., 1 tab." @default.
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- W348570332 date "1986-03-01" @default.
- W348570332 modified "2023-09-24" @default.
- W348570332 title "Separation and detection of ammonia, amines, and alkanolamines with single-column ion chromatography. [Alkylamines, ethanolamine and methyldiethanolamine]" @default.
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