Determination of polymeric functional additives in diesel fuel by gel penetration chromatography

Current article is devoted to the development of a method for determining polymer functional additives and their molecular weight characteristics in diesel fuel by gel penetration chromatography. The objects study were solutions “C5A”, “Maxoil D”, “Detersol”, polymethymethacrylate “D” (PMAD), “Keropur D ”, Antigel “Difron 3319” “Superantigel” individual as well produced “Kuban Oil Gas Company - Ilskiy Refinery”, LLC. conditions chromatographic separation determination polymeric determined considering analyzed matrix, working range separated masses weights analytes, composition eluent applicable wide analytes. system was calibrated using narrowly dispersed analytical standard polystyrene samples with 1000, 2000, 4000, 10000, 30,000, 50,000, 70,000 Da respectively. calculated each additive from polystyrene. GPC fuel, along concentration characteristics, also makes it possible determine parameters additives; therefore, promising monitoring quality fuel. proposed scheme tested analysis real sample “Keroflux 3699” depressant-dispersant included preparation solid-phase extraction, calibration samples, components, calculation characteristics. depressant dispersant have been established number average equivalent 10,300 8800 respectively, polydispersity index 1.17.