Abstract:

The determination of triclosan in antimicrobial textiles was established by a gas chromatography(GC) method coupled with an electron capture detector(ECD). As for the positive samples, GC/MS was used for the confirmation of triclosan. Triclosan in antimicrobial textiles was microwave-assisted extracted using dichloromethane as the extraction solvent. This method was rapid, accurate and sensitive. The detection limit was 1 μg/kg at the signal to noise ratio of 3(S/N=3). The recovery ratio varied from 90% to 106%, while the RSD was all less than 6%. Triclosan in commercially available antimicrobial textiles was analyzed using the established method, and the results showed that a large amount of triclosan existed in some commercially available antimicrobial textiles.

Key words: gas chromatography-electron capture detector, Microwave-assisted extraction, Antimicrobial textile, Triclosan