1) ultrasonic extraction-infrared photometric method
超声波提取-红外光度法
3) ultrasonic extraction technology
超声波提取法
1.
Orthogonal design method and ultrasonic extraction technology were used for studying the effect of alcohol concentration, rate of solid to solution, ultrasonic time and times.
方法以儿茶素的提取含量为评价指标,采用超声波提取法,通过正交试验研究不同浓度乙醇、提取次数、提取时间、料液比4个因素对儿茶素提取的影响,并筛选出最佳提取条件;用高效液相色谱法测定含量,以甲醇-水-乙酸(25∶74。
4) ultrasonic extraction
超声波提取法
1.
Conclusion For extracting naringin,the ultrasonic extraction method is superior to the Soxhlet extraction method,which is collected in the Chinese Pharmacopoeia with more convenience and time saving.
目的比较索氏提取法与超声波提取法提取化橘红中柚皮苷的效果。
5) supercritical carbon dioxide extraction
超声波提取法
1.
were systematically investigated and compared in detail in this paper, including supercritical carbon dioxide extraction, ultrasonic extraction, microwave-assisted extraction and traditional solvent extraction.
693%;超声波提取法,以60%乙醇为溶剂,料液比为1∶9,超声波作用时间为30min,超声波功率为200W,苦楝素的提取率为0。
6) Ultrasonic-Enzyme method
超声波-酶提取法
补充资料:超声
超声
UltrasofliCS
是指超出人耳听力范围的高频声(频率超过20000Hz)。超声具有与一般声音共同的物理性质,还具有一些其他重要的物理特性,如能够成束发射,直线传导,方向性好。传导过程中遇有声阻抗不同的反射界面时产生反射、折射、聚焦和散焦等现象。用于临床诊断的超声频率一般为2~7.5MHz。频率越高,对组织结构的分辨力越强,但远场声能容易被组织吸收、衰减,不易穿透较深的层次。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条