| 干燥蒜粉中苯甲酸检测的假阳性分析 |
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| 引用本文： | 郑成荣,范艳红,孙洪峰,罗之纲.干燥蒜粉中苯甲酸检测的假阳性分析[J].食品研究与开发,2009,30(7). |
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| 作者姓名： | 郑成荣 范艳红 孙洪峰 罗之纲 |
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| 作者单位： | 顶新国际集团中央研究所基础研究中心,天津,300457 |
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| 摘 要： | 以GB/T5009.29-2003液相色谱条件检测干燥蒜粉样品里的苯甲酸时,出现引起误判的干扰性物质,当HPLC方法经过适当的调整(梯度洗脱条件:0min,5%B,流速0.7mL/min;5min,5%B,流速0.7mL/min;7min,7%B,流速1mL/min;12min,5%B,流速1mL/min;15min,5%B,流速1 mL/min;30min,5%B,流速1mL/min,B相为甲醇),可避免这个问题.
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| 关 键 词： | 蒜粉 生鲜大蒜 苯甲酸 液相 质谱 梯度洗脱 |
THE FALSE POSITIVE ANALYSIS OF BENZOIC ACID DETECTION IN DRY GARLIC POWDER |
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| ZHENG Cheng-rong,FAN Yan-hong,SUN Hong-feng,LUO Zhi-gang.THE FALSE POSITIVE ANALYSIS OF BENZOIC ACID DETECTION IN DRY GARLIC POWDER[J].Food Research and Developent,2009,30(7). |
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| Authors: | ZHENG Cheng-rong FAN Yan-hong SUN Hong-feng LUO Zhi-gang |
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| Abstract: | There are some interfering matter as detecting benzoic acid in dry garlic powder by the method of GB/T 5009.29-2003. As adjusting the method of HPLC properly (the condition of gradient elution: 0 min, 5% B, velocity of flow: 0.7mL/min; 5 min, 5 %B, velocity of flow: 0.7 mL/min; 7 min, 7 %B, velocity of flow: 1 mL/ min; 12 min,5 %B, velocity of flow: 1mL/min; 15 min,5 %B, velocity of flow: 1 mL/min;30 min,5 %B,velocity of flow: 1 mL/min B:ethanol), the problem can be avoided. |
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| Keywords: | garlic powder fresh garlic benzoic acid LC Mass gradient elution |
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