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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;Borissova, Maria;Kaljurand, Mihkel
Title: Analysis of corrosion inhibitors, used in fertilizers industry, by high performance liquid chromatography - electrospray ionization mass spectrometry
Is part of: The Vital Nature Sign : 3rd International Conference, Kaunas, Lithuania, May 22-23, 2009 : proceedings. Kaunas : Vytautas Magnus university, 2009
Extent: p. 157-159
Date: 2009
Keywords: Corrosion inhibitors;Fertilizers industry
ISBN: 9789955125426
Abstract: Liquid fertilizers are stored, manufactured, and transported in metallic tanks which can completely corrode if corrosion inhibitor is not added. Corrosion inhibitors form a protection layer which protects metallic surface from corrosion. The use of these protecting compounds in fertilizers industry has a huge economical importance. Depending on the chemical origin of fertilizers, different composition corrosion inhibitors are used. Usual ingredients of corrosion inhibitors are fatty acids, amines, surfactants, glycols. Amines are very difficult to analyze by high performance liquid chromatography (HPLC), because they strongly interact with column packing and separation of compounds becomes impossible. In order to determinate these compounds a derivatization is needed. Fatty acids and surfactants can be separated by HPLC-MS without any derivatization. In some cases, when the mixture is not complex (contains up to 5 compounds) it is useful to apply direct injection electrospray ionization and mass spectrometry (ESITOF- MS). It provides a possibility of direct injection and covers a broader scope of analytes
Affiliation(s): Biochemijos katedra
Vytauto Didžiojo universitetas
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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