Determination of tau‐fluvalinate residues in honey

A capillary column gas chromatographic method is described for the determination of tau‐fluvalinate in honey samples. The method involves solid phase extraction of the sample with two RP C‐8 cartridges in series, purification of the extract, if necessary, on a silica cartridge, and detection of the active ingredient with an electron capture detector. The method is rapid and overcomes the problem of emulsion formation in liquid/liquid partition often found in traditional systems. The detection limit in actual samples is 0.01 mg kg−1 and mean recoveries for fortified samples prepared with or without clean‐up are greater than 85%.