Simultaneous GC Determination of Diazepam and Triazolam in Animal Feedstuffs

Residual amounts of diazepam and triazolam in animal feedstuffs were determined by GC with electron capture detector.The sample was extracted with organic solvent and separated on SE-54 capillary column (30 m×0.32 mm,0.32 μm).External standard calibration was adopted in the determination.Linear relationships between values of peak area and mass concentration of diazepam and triazolam were obtained in the range of 0.3-60 mg·L-1,with their detection limits (2S/N) of 0.007 1 and 0.021 3 mg·L-1 respectively.The values of recovery were in ranges of 79.5%-93.1% (diazepam) and 81.6%-91.8% (triazolam),and values of RSD′s (n=8) found were in ranges of 2.11%-4.02%,2.09%-4.61%,respectively.