【摘要】 采用硼酸盐-十二烷基硫酸钠胶束电动色谱对油田水中存在的烷基酚进行了分离分析。考察了影响分离的各种不同因素：缓冲液浓度、体系的pH值、胶束溶液浓度、分离电流、管住温度及有机添加剂β-环糊精等。在恒流100μA下，38min内可分离20种烷基酚。采用Cl－TBP萃淋树脂对油田水样进行了浓缩富集预处理。更多还原

【Abstract】 The abundance of alkylphenols in the system of water,oil and rock is of great geochemistry significance. The analysis of alkylphenols in oil field water using micellar electrokinetic chromatography with UV detection is described. The different variables that affect separation were studied and optimized. The results show that better separation was obtained with the borate concentration of 47. 5 mmol/L, the SDS concentration of 70. 0 mmol/L, PH 9. 15, separation current of 100μA, capillary temperature 20℃. The organic additive(β-CD) could partly improve separation. Water sample was introduced into the capillary by pressure of 5kPa for several seconds. Detection wavelength was 200 um and reference wavelength at 350 urn for all experiments.For the oil field water sample, the reproducibility of directly injected oil field water after filtration through a membrane filter of 0. 45μm pore size was far from good and it’s concentrations of alkylphenols were too low to be detected. Therefore, a method of separation and enrichment by a column packed with tributyl phosphate (TBP) extraction resin was applied for analysis of TZ4 oil field water. Qualitative analysis show that there are phenol,o-cresol, m-cresol and p-cresol in this water sample and phenol is the main component and it’s quantity is more than other alkylphenols. it’s recoveries from the oil field water were 91. 5%-95. 3%.The results were satisfactory.更多还原