Identification and Structural Elucidation of Corrosion Inhibiting Long-Chain N-1-Alkyl-1,3-propanediamines by GC–MS |
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Authors: | Peter Kusch Gerd Knupp Marian Kozupa Maria Majchrzak |
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Affiliation: | 1. Department of Applied Natural Sciences, Hochschule Bonn-Rhein-Sieg, University of Applied Sciences, von-Liebig-Str. 20, 53359, Rheinbach, Germany 2. Institute of Heavy Organic Synthesis “Blachownia”, ul. Energetyków 9, 47-225, K?dzierzyn-Ko?le, Poland
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Abstract: | Gas chromatography–mass spectrometry has been used to identify long-chain (C8–C18) N-1-alkyl-1,3-propanediamines after derivatization with trifluoroacetic anhydride. Electron impact ionization and negative chemical ionization mass spectra of trifluoroacetylated derivatives of the identified N-1-alkyl-1,3-propanediamines are presented for the first time. The corrosion inhibiting long-chain N-1-alkyl-1,3-propanediamines were applied in the preparation and investigation of a new anticorrosive and antifouling formulation for water–steam circuit of energy systems in the power industry. Using the GC–MS data, it was possible to identify residues of the N-1-alkyl-1,3-propanediamines in complex samples of boiler water from the power plant after solid-phase extraction and acylation. |
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