Determination of alkylamine carbonate nonionic–anion oil displacement agent in oil-field water using HPLC after derivatization with 4-methoxybenzenesulfonyl fluoride

摘要: In this study, a method for the determination of alkylamine carbonate (AAC) nonionic–anion oil displacement agent in oil-field water was developed first time, involving pre-column derivatization using novel labeling and HPLC with diode-array detection. The chromatographic separation conditions were investigated thoroughly. analyte labeled 4-methoxybenzenesulfonyl fluoride at 50 °C 20 min. When applied C18A5C (an AAC containing eighteen alkyl five amino groups) linear calibration curve obtained from 1.0 to 100.0 μg mL−1 correlation coefficient more than 0.999 detection limit 0.05 mL−1. real samples, recovery range 91.8% 96.2%, intra-day inter-day relative standard deviations 2.9–3.5% 3.8–4.3%, respectively. experimental results demonstrate that method, its merits simplicity pretreatment, rapidity derivatization, stability derivatives, can be employed analysis has potential application other surfactants groups. It is great significance develop fast, easy-to-operate, sensitive reliable environmental impact assessment.