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1)  Acetonitrile-ultrasonic extraction
乙腈-超声波提取
2)  ultrasonic extraction
超声波提取
1.
Technology of the ultrasonic extraction of avermectin B_(1a);
超声波提取阿维菌素B_(1a)的工艺
2.
Determination of Pyrethroids Residues in Tea by High Performance Liquid Chromatography with Ultrasonic Extraction;
超声波提取-高效液相色谱测定茶叶中拟除虫菊酯农药残留
3.
Ultrasonic extraction on yellow pigment from rapeseed flowers and antiseptic application in apple juice;
超声波提取油菜花黄色素及其防腐作用研究
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3)  Ultrasonic wave extraction
超声波提取
1.
Three different extraction methods,including conventional solvent extraction,ultrasonic wave extraction and microwave-assisted extraction were compared.
研究对比了常规溶剂浸提、超声波提取及微波辅助提取等方法对原花青素提取得率的影响。
2.
The results indicated that the best technological conditions of extracting the total flavonoids from the stems and leaves of yellow ginger by ultrasonic wave extraction were:ethanol concentration 85%,ratio of solid to liquid 1:30,and extracting time 60min.
实验结果表明:黄姜茎叶总黄酮超声波提取的最佳工艺条件为:乙醇浓度为85%,料液比(g/mL)为1∶30,超声波提取时间为60min。
3.
Experiment was conducted on total flavonoid from flower bud of Chrysanthemum indicum with water as solvent by ultrasonic wave extraction.
以总黄酮为指标,以水为溶剂采用超声波提取技术,通过单因素试验和正交试验确定菊米的最佳提取方法。
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4)  ultrasonic wave treatment
超声波提取
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5)  ultrasonic-assisted extraction
超声波提取
1.
Ultrasonic-assisted extraction produced similar level of icariin as Soxhlet extraction,but with dramatically shortened extraction time and less solvent required.
以淫羊藿叶为原料,用正交试验法优化了淫羊藿苷的超声波提取工艺,所得最佳工艺条件为:提取温度50℃、提取溶剂60%甲醇溶液、液固比35∶1(mL/g)、超声波作用时间20 min。
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6)  ultrasound extraction
超声波提取
1.
Response surface methodology (RSM) was employed in the work and a second order quadratic equation for propolis flavones by ultrasound extraction.
采用了响应曲面法(response surface methodology,RSM)建立了超声波提取蜂胶黄酮的二次多项式数学模型,并验证了模型的有效性。
2.
Objective To explore a way to extract the red pigment and green pigment from the edible amaranth by ultrasound extraction.
方法利用苋菜中红色素在水中溶解度较大,不溶于乙醇,绿色素不溶于水,在乙醇中溶解度较大的性质可对两种色素分别进行提取分离,并通过单因素和正交实验考察了超声波提取绿、红色素的工艺参数和提取效果,并与常用溶剂浸泡法做了对比。
3.
The results showed that the optimum ultrasound extraction conditions for juglone were as follows:extraction time was 1.
采用响应面法优化超声波提取胡桃楸中胡桃醌的条件。
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补充资料：乙腈
    结构式CH3CN．分子量41．05。无色透明液体，有醚的气味。相对密度(20 ℃／4℃)1. 7822，凝固点-43．8℃，沸点81．6℃、闪点5．6℃。折射率1.3441．粘度(20 ℃)0.35mPa·s，表面张力(20℃)1 9．10×10-3N／m，临界温度274．7℃，临界压力4．83MPa。能与水、甲醇、醋酸甲酯、醋酸乙酯、丙田酮、乙醚、氯仿、四氯化碳、氯乙烯以及各种不饱和烃相混溶。与水形成共沸混合物。易燃，爆炸极限3．0％-16％(vol)。有毒人LD503800mg／kg。空气中最高容许浓度3mg／m3。
   用作树脂和橡胶的良溶剂。
   贮存阴凉、通风、干燥的库房内，远离火种、热源，防止日光直射。   
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
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