Abstract
A copper wire coated with copper sulfide (CuS) was investigated as fiber for solid-phase microextraction (SPME). The fibers seem very effective for extraction of aliphatic alcohols and amines from aqueous samples. Optimum conditions for the preparation and conditioning of the fibers are presented. Scanning electron microscopy shows the formation of a porous CuS layer with a thickness of ca. 9 μm. The calibration graph for benzyl alcohol was linear in the range 10–100 ppb. The detection limit for benzyl alcohol and GC-FID was 2 ppb (S/N=3).
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