| 气相色谱法测定苜蓿青贮料中的有机酸 |
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| 引用本文： | 王洪丽,李成云.气相色谱法测定苜蓿青贮料中的有机酸[J].饲料工业,2008,29(16). |
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| 作者姓名： | 王洪丽 李成云 |
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| 作者单位： | 延边大学农学院科学系,133400,吉林龙井 |
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| 摘 要： | 使用四甲基氢氧化铵/碘甲烷对青贮料浸出液进行甲酯化反应,采用程序升温的方法,同时测定青贮料中乳酸、乙酸、丙酸、丁酸的含量。结果表明:该方法分离效果好,各组分的回收率在97.8%～101.2%之间,重复性好,标准曲线线性关系良好R2=0.9990～0.9997,所以采用此方法测定苜蓿青贮料中有机酸是较为理想的方法。
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| 关 键 词： | 青贮苜蓿 气相色谱 有机酸 甲酯化 |
A determination method based on gas chromatography for analysis of organic acids in alfalfa silage |
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| Wang Hongli,Li Chengyun.A determination method based on gas chromatography for analysis of organic acids in alfalfa silage[J].Feed Industry,2008,29(16). |
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| Authors: | Wang Hongli Li Chengyun |
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| Abstract: | This article uses the tetramethyl ammonium hydroxide∕methyl iodide for methyl esterification and the method of temperature program ,determine the content of lactic acid, ethanoic acid, propionic acid, butyric acid.The results showed that: This method separation effect is good, various components recovery rate between 97.8%～101.2%,the duplication is good and having high correlation coeficients of 0.999 0 and 0.999 7. Therefore, this would be an ideal way to determinate the organic acids of alfalfa silage. |
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| Keywords: | gas chromatography organic acids alfalfa silage methyl esterification |
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