TY - SER AU - Es' haghi,Zarrin AU - Ebrahimi,Mahmoud AU - Hosseini,Mohammad-Saeid TI - Optimization of a novel method for determination of benzene, toluene, ethylbenzene, and xylenes in hair and waste water samples by carbon nanotubes reinforced sol-gel based hollow fiber solid phase microextraction and gas chromatography using factorial experimental design N1 - YA2011 M07 Sources - Journal of Chromatography A Sources - 1218 (21) 2011 : 3400-3406 ISSN - 0021-9673 ER -