| 气相色谱法测定饲料中BHT和EQ两种抗氧化添加剂 |
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| 引用本文： | 董茂锋,白冰,饶钦雄,宋卫国,杨海锋,赵志辉.气相色谱法测定饲料中BHT和EQ两种抗氧化添加剂[J].中国饲料,2012(8):40-42. |
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| 作者姓名： | 董茂锋 白冰 饶钦雄 宋卫国 杨海锋 赵志辉 |
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| 作者单位： | 上海市农业科学院农产品质量标准与检测技术研究所 |
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| 基金项目： | 国家标准饲料添加剂乙氧基喹啉资助(20100297-Q-469) |
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| 摘 要： | 建立了饲料中BHT(2,6-二叔丁基对甲酚)和EQ(乙氧基喹啉)两种抗氧化剂的气相色谱检测方法。经过前处理优化后,样品经过异丙醇超声提取4 h,用气相色谱氢焰离子化检测器(GC-FID)测定。结果表明,在50~900 mg/L浓度范围内,BHT和EQ的峰面积均与其浓度呈线性相关,R2≥0.999,BHT和EQ方法检出限分别为0.015%和0.02%,添加回收率为77.89%~90.53%,相对标准偏差为2.27%~8.35%。
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| 关 键 词： | 抗氧化剂 2 6-二叔丁基对甲酚 乙氧基喹啉 气相色谱法 |
Determination for BHT and EQ in feed by gas chromatogram |
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| Institution: | Dong Maofeng,Bai Bing,Rao Qinxiong,et al. |
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| Abstract: | A method was established by gas chromatography(GC) for determine dibutylhyfroxy toluene(BHT) and ethoxyquin(EQ) in feed.The samples were extracted with isopropanol by ultrasound for 4 h and then detected by chromatogaph-flame ionization detection(GC-FID).In the range of 50 ~ 900 μg/mL,there was a good linear correlation(R2 ≥ 0.999) between the peak area and concentration of BHT and EQ.The method detection limit of BHT and EQ were 0.015 % and 0.02 %,the recoveies of BHT and EQ were 77.89 % ~ 90.53 %,and the relative standard deviations(RSD) of BHT and EQ were 2.27 % ~ 8.35 %. |
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| Keywords: | antioxidant BHT EQ GC |
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