4Zoltan M,Ralph S.Solid phase microextraction as a tool for trace element determination.Comprehensive Analytical Chemistry,2003,41:371-391.
5Mitsushi S,Taizou T.Applicability of headspace solid phase mierocxtraction to the determin-ation of multi-class pesticides in waters.J Chmmatogr A,2004,1028:63-74.
8Ong CN, Chia SE, Phoon WH, et al. Biological monitoring of oc- cupational exposure to tetrahydmfuran[ J]. Br J Ind Med, 1991, 48(9) : 616 -621.
9American Conference of Governmental Industrial Hygienists. TLVs and BEIs : Based on the documentation of the Threshold Limit Val- ues for chemical substances and physical agents and Biological Ex- posure Indices[ M ]. Cincinnati: Ohio, 2014 : 56.
10Mester Z, Sturgeon R, Pawliszyn J. Solid phase microextraction as a tool for trace element speciation[ J]. Speetrochim Acta B, 2001, 56(3) : 233 -260.
