4Font G, Manes J, et al. SPE in multi- residue pesticide analysis of water[ J ]. J. chromatography, 1993,642 : 135-- 161.
5Arthur C, Killam L, et al. Analysis of substituted benzene compounds in ground water using solid phase microextration[ J]. Environ Sci Technol, 1992,26 : 979--983.
6Johnson W E, Fendinger N J, Plimmer J R. Solid-phase extraction of pesticieds form water: possible interference from dissolved organic materia[J]. Anal Chem, 1991,63(15) : 1510--1513.