Instantaneous ultrasonic extraction 超声瞬时提取
ultrasonic extraction conditions 超声提取条件
accelerative ultrasonic extraction 超声波加速提取
Ultrasonic-assisted extraction 超声波辅助提取 ; 超声波提取 ; 超声辅助提取 ; 超声辅助萃取
the ultrasonic extraction 超声提取
using ultrasonic extraction 超声提取
The researchers used water and an ultrasonic extraction process, followed by gas chromatography-mass spectrometry to quantify the amount of cocaine in more than 230 bills collected in 17 cities.
研究人员从17个城市收集到230张纸币样本，并使用水和超声波提取方法，再加上气相色谱分析-质谱法对样本进行测试。
Objective:To optimize the ultrasonic extraction for ursolic acid from Paulownia tomentosa(Thunb.
目的：确定毛泡桐中乌索酸的最佳超声提取工艺条件。
Objective to compare impregnation, extraction back to normal, continuous circumfluence, ultrasonic extraction, complex method of extraction of berberine hydrochloride in the Chinese extraction rate.
目的比较浸渍法、一般回流提取法、连续回流法、超声提取法、复合方法提取黄连中盐酸小檗碱的提取率。
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