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建立饲料中雌二醇、炔雌醇和己烯雌酚含量测定的高效液相色谱法。采用常用的C18色谱柱(250.0 mm×4.6 mm,5.00μm),以乙腈+水(50+50)为流动相,检测波长205 nm,流速1.0 m L/min,用外标法定量。高效液相色谱方法最低检测限为5.0 mg/kg,0.5~50.0 mg/L质量浓度范围内线性关系良好(r≥0.999),平均回收率超过75.0%,变异系数低于10.0%,可用于饲料中雌二醇、炔雌醇和己烯雌酚含量的测定。
The establishment of feed estradiol, ethinyl estradiol and diethylstilbestrol determination of high performance liquid chromatography. The standard C18 column (250.0 mm × 4.6 mm, 5.00 μm) was used. The mobile phase consisted of acetonitrile + water (50 + 50) with a detection wavelength of 205 nm and a flow rate of 1.0 m L / min. The limit of detection (LOD) was 5.0 mg / kg and the linear range was 0.5-50.0 mg / L (r≥0.999). The average recovery was over 75.0% and the coefficient of variation was less than 10.0% Determination of estradiol, ethinylestradiol and diethylstilbestrol in rats.