| Summary |
606 sample of chicken were collected from markets of nine counties in Taiwan during the period of August 1994 to April 1995 for analysis of sulfa drugs residues. After homogenized and weighed, tissue sample were extracted with solvent and determined by HPLC for residues of several sulfa drugs frequently used in chicken. The investigated concentrations and the numer of positive sample for various sulfa drugs were as follows : Sulfathiazole below 0.05 ppm (5) ; Sulfamethazine below 0.1 ppm (5), between 0.1 to 0.5 ppm (4) ; Salfadimethoxine below 0.1 ppm (3), between 0.1 to 0. 5 ppm (2) ; Salfaquinoxaline below 0.1 ppm (2), between 0.1 to 0.5 ppm (2), between 0.5 to 1 ppm (2), above 1 ppm (1).
There were 12 cases investigated in chicken to be above 0.1 ppm which was the allowed residual concentration of sulfa drug in normal products according to the official regultions of Department of Health. The detection percentage was estimated to be 1.98 % (12/606). On the basic of the findings of our survey, we concluded that the situation in residue of sulfa drug in chicken in Taiwan was acceptable.
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