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Type of publication: research article
Type of publication (PDB): Straipsnis recenzuojamoje Lietuvos tarptautinės konferencijos medžiagoje / Article in peer-reviewed Lithuanian international conference proceedings (P1e)
Field of Science: Chemija / Chemistry (N003)
Author(s): Sirtautas, Ramūnas;Maruška, Audrius;Mažeika, Romas
Title: Gas chromatographic and mass spectrometric analysis of corrosion inhibitors used in the fertilizer industry
Is part of: The Vital Nature Sign : 3rd International Conference, Kaunas, Lithuania, May 22-23, 2009 : proceedings. Kaunas : Vytautas Magnus university, 2009
Extent: p. 152-156
Date: 2009
Keywords: Gas chromatographic;Spectrometric analysis;Corrosion inhibitors;Fertilizer industry
ISBN: 9789955125426
Abstract: Liquid fertilizers are widely manufactured, stored and shipped in metallic tanks, which can completely corrode in a few months if corrosion inhibitor is not added. Corrosion inhibitors are chemical compounds which protect metallic surface by forming a protection layer. It protects metallic surface from reaction with liquid fertilizers compounds and can save millions of dollars, since there are no need to replace or repair the tanks. The chemical composition of corrosion inhibitors depends on particular liquid fertilizer for which they are designed to protect metallic surface. Such corrosion inhibitors commonly consist of some fatty acids, amines, surfactants etc. In this work several ways to analyze corrosion inhibitors using gas chromatography - mass spectrometry were applied: (I) analysis of the samples using derivatization reaction with trifluoroacetic acid anhydride (derivatization is needed for synthesis of amides, which do not strongly interact with the stationary phase and are volatile and thermally stabile); (II) applying solid-phase micro extraction; (III) direct injection of methanol solution of the corrosion inhibitor
Affiliation(s): Biochemijos katedra
Vytauto Didžiojo universitetas
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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