Abstract: Base on the previous work in laboratory, a novel polyaniline doped
with polydimethylsiloxane coating was developed on a stainless steel wire for
solid phase microextraction (SPME) by electroplating method. This
electroplating method not only has advantages of ease preparation and simple
equipments required, but also increases the lifetime of the SPME fiber. The
composite fiber (polyaniline/polydimethylsiloxane (PANI/PDMS)) was evaluated by
analyzing n-tridecane, n-tetradecane and n-pentadecane in aqueous sample. The
new fiber coating showed comprehensive abilities to extract alkanes compounds.
The relative standard deviations were found to be 6.8%–10.33%.