液液萃取-气相色谱法快速测定发酵液中的己酸含量
Food Research and Development(2020)
Abstract
对液液萃取-气相色谱法测定发酵液中己酸的方法进行研究.样品经硫酸酸化后采用萃取剂萃取,上层液再经微孔滤膜过滤.结果表明,乙酸乙酯为最佳萃取剂,发酵液样品最佳pH值为2.处理后样品直接进入白酒分析专用色谱柱(型号FFAP),火焰离子化检测仪(flame ionization detector,FID)检测,进样量0.6μL,以2-乙基正丁酸为内标定量.该方法加标回收效率98.19%~104.43%,相对标准偏差2.19%~3.51%,精密度3.46%,该方法精确度高、准确、可靠,可用于发酵液中己酸含量的快速定量检测.
MoreAI Read Science
Must-Reading Tree
Example
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined