TY - JOUR T1 - A sweeping-micellar electrokinetic chromatography method for direct detection of some aromatic amines in water samples. AU - Zhang,Jianhua, AU - Wu,Xiaoping, AU - Zhang,Wei, AU - Xu,Liangjun, AU - Chen,Guonan, PY - 2008/1/19/pubmed PY - 2008/6/3/medline PY - 2008/1/19/entrez SP - 796 EP - 802 JF - Electrophoresis JO - Electrophoresis VL - 29 IS - 4 N2 - A simple and rapid sweeping method for the online improvement of detection limit of some aromatic amines has been developed in this work. The optimum sweeping and separation conditions for 4-methylaniline, 3,4-dichloroaniline, 4-chloroaniline, and 4-aminophenyl were investigated in detail. Under the optimum conditions, the detection limits of these four aromatic amines ranged from 5.4 x 10(-10) to 4.6 x 10(-8)mol/L (S/N = 3), which was about 80-1090-folds lower than those of conventional sample injections. Linear response range were in the range of 2.5 x 10(-8)-2.0 x 10(-6)mol/L with the correlation coefficient between 0.9965 and 0.9994. Baseline separation was achieved within 10 min. After validation, the developed method was applied to determine 4-methylaniline, 3,4-dichloroaniline, 4-chloroaniline, and 4-aminophenyl in river water sample with average recoveries of 79.6-88.7%. SN - 0173-0835 UR - https://www.unboundmedicine.com/medline/citation/18203255/A_sweeping_micellar_electrokinetic_chromatography_method_for_direct_detection_of_some_aromatic_amines_in_water_samples_ DB - PRIME DP - Unbound Medicine ER -