The factors of temperature and time are analyzed in ultrasonic extracting method and the content of flavonoids are detected.
结果采用超声波法提取鱼腥草总黄酮较佳，其含量随温度的升高和时间的延长而有所增加。
The chemical constituents of essential oil of Nanguoli pear with ultrasonic extracting was analyzed with GC-MS method.
采用超声波提取南果梨挥发油，利用GC/MS法分析其化学成分及相对百分含量。
Ultrasonic-microwave synergistic extraction technique applied in extracting flavonoids of Glycyrrhiza is better than regular method.
结论：甘草黄酮的提取可优选超声-微波协同萃取法。
A soil sample preparation method was established for extracting phenol with the aid of ultrasonic energy.
以合成土样为对象，研究了超声波辅助提取苯酚的条件及其提取效率。
A new method was built to determine the POV of powdered oils by broking the wall with ultrasonic and then extracting the oil to determine the POV.
建立了一种简单、重复性好的超声波破壁提油测定粉末油脂中油脂过氧化值的新方法。
Results Ultrasonic with methanol was the best extracting method for both emodin and chrysophanol.
结果甲醇超声波提取大黄素和大黄酚的效率最高。
Results Ultrasonic with methanol was the best extracting method for both emodin and chrysophanol.
结果甲醇超声波提取大黄素和大黄酚的效率最高。
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