5ZHANG J, SU T, LEE H K. Headspace water-based liquid-phase microextraction[J]. Anal Chem, 2005, 77(7): 1988 - 1992.
6BAGHERI H, KHALILIAN F. Immersed solvent microextraction and gas chromatography - mass spectrometric detection of s-triazine herbicides in aquatic media[J]. Anal Chim Acta, 2005, 37:81 -87.
7ZHAO R S, LAO W J, XU X B. Headspace liquid-phase microextraction of trihalomethanes in drinking water and their gas chromatographic determination [J]. Talanta, 2004, 62 : 751 - 756.
8SHEN G, LEE H K. Hollow fiber-protected liquid-phase mieroextraction of triazine herbicides[J]. Anal Chem, 2002, 74 ( 3 ) : 648 - 654.
9LOPEZ - BLANCO M C, NLANCO - CID S, CANCHO - GRANDE B, et al. Application of single-drop microextraction and comparison with solid-phase microextraction and solid-phase extraction for the determination of a- and b-endosulfan in water samples by gas chromatography -electron-capture detection[J]. J Chromatogr: A, 2003, 984:245 -252.