目的研究超声萃取法萃取银杏外种皮中白果酸的工艺过程。
AimTo study the technical process to extract ginkgolic acids in the exotesta of Ginkgo Biloba L.
本发明提供的是一种超声萃取蒸馏分离苯―环己烷及苯―正庚烷物系的方法。
The invention provides a method in separating benzene from cyclohexane and from heptane by ultrasonic extractive distillation, comprising steps as ultrasonic processing and extractive distillation.
建立了7%右旋苯氰菊酯杀虫烟雾剂的超声萃取前处理方法和气相色谱分析方法。
A method was established for determination of a 7% d-cyphenothrin insecticidal aerosol using an ultrasound extraction pretreatment followed by gas chromatography (GC).
与传统的超声萃取法相比,超声雾化萃取法具有溶剂用量较小、萃取时间较短的优势。
Compared with ultrasonic extraction (UE), the amount of extraction solvent and extraction time can be reduced when the UNE was applied.
将萃取方法也进行了比较,结果表明,与超声萃取和搅拌萃取相比,微波萃取法快速、高效。
Compared with the ultrasound-assisted extraction method and stirring extraction method, the microwave-assisted extraction method was time saving and more efficient.
方法1 051份疑似肺结核病人的痰液样品,同时应用涂片、漂浮集菌、超声萃取三种方法检测。
Methods Sputum specimens of 1 051 cases of suspected pulmonary tuberculosis were simultaneously detected by smear preparations, collection of floating bacteria and ultrasound extraction.
何首乌用70%甲醇超声提取浓缩后,用氯仿萃取分离出游离和结合型蒽醌,得到定量用试液。
Using 70% methanol, the Polygonum multiforum extract was concentrated by ultrasonic method . Then concentrated extract was leached with chloroform and separated into free and bound anthraquinones.
综述了超声在萃取植物中酶、中草药和茶叶中特定成分、溶液中金属等所产生的影响。
The effects of ultrasound on the enzyme in plants, herbal medicine, inclusion of tea and metallic solvent are also reviewed.
从实验和理论上对超声强化超临界流体萃取的机理进行了研究。
The extraction mechanism of ultrasound-enhanced supercritical fluids was studied theoretically and experimentally.
采用低频超声波处理大豆浆体以提高其蛋白质和固形物的萃取率。
Soybean slurry was processed by low frequency ultrasonic for enhancing the extraction rates of proteins and solids.
结果表明:超声强化超临界流体萃取的机理不是源于超声空化,而是超声在微环境内产生的机械波动效应和热效应。
The results show that the extractive enhancement mechanism in USFE is primarily mechanical fluctuant effect and thermal effect of ultrasonic in microenvironment rather than that of cavitary effect.
超临界CO2流体声速随压力和温度变化规律,对超声技术强化超临界流体萃取应用具有理论指导作用。
The laws of ultrasonic velocity with respect to pressure and temperature in supercritical fluid CO2 can provide a theoretical guide in ultrasonic enhancing supercritical fluid extraction.
本文就超声波萃取的原理、优点及其在茶叶深加工的应用作一综述,并展望了它在未来茶叶深加工中的应用前景。
The principles of the ultrasonic technology were reviewed and prospects of its application to extraction of tea were discussed in the present paper.
方法以甲醇为萃取溶剂,采用超声提取法对样品进行前处理,采用气相色谱-质谱联用法进行检测。
Methods The organic residues were extracted from samples by ultrasonic extraction with methanol and analyzed by gas chromatography-mass spectrometry.
结论:甘草黄酮的提取可优选超声-微波协同萃取法。
Ultrasonic-microwave synergistic extraction technique applied in extracting flavonoids of Glycyrrhiza is better than regular method.
从提取效率、油的得率及绿色环保几个因素综合考虑,超声波提取法和超临界二氧化碳萃取法是比较理想的两种提取方法。
Considering factors of extraction efficiency, oil yield and environmental protection, the ultrasonic extraction and the supercritical carbon dioxide fluid extraction are the appropriate methods.
采用索氏提取法、超声波强化提取法和超临界CO2萃取法分别提取大豆胚芽油。
Soybean germ oil was extracted by Soxhlet extraction, ultrasonic-assisted extraction and supercritical CO2 extraction, respectively.
比较了传统有机溶剂萃取法和超声波破碎浸提法在提取芦荟苦素方面的差异。
In comparison with the solvent extraction technology, the technology of extracting Aloesin by using of supersonic was studied.
对土壤样品中吡虫啉快速压力溶剂萃取技术(PSE)与传统提取方法(超声波萃取、振荡提取和索氏萃取)进行了对比研究。
Pressurized solvent extraction (PSE) of imidacloprid in soil comparing to traditional method such as ultrasonic extraction, shaking extraction and Soxhlet extraction were studied.
前言: 目的:研究超声法萃取黑水缬草精油的实验条件。
Objective:To establish the conditions for the supersound extraction of volatile oil from Valeriana amurensis Smirn.
研制了中药有效成分超声波双频湍动萃取装置。
An ultrasonic double-frequency turbulent extraction equipment has been developed for extracting effective ingredients in medicinal plants.
对微波、超临界协同超声波萃取技术进行了讨论。
The microwave and supercritical synergistic extraction methods are also discussed.
研究了样品萃取量、超声波萃取时间、以及不同萃取溶剂对微量挥发性成分萃取效果的影响。
The effects of sample concentration, ultrasonic extraction time, and different extracting solvent on the extraction of volatile microconstituents were also investigated.
方法:采用超声波萃取法提取多糖成分。
实验对超声波辅助萃取技术与传统萃取技术进行了对比,得出超声辅助萃取制得的产品中丙酮不溶物含量平均高于传统萃取技术3.3%,萃取时间大大缩短。
The result showed that AI% of ultrasonic assistant extraction technique was higher than traditional extraction technique about 3.3% averagely, and extraction time was shortening obviously.
采用气相色谱-质谱联用技术(GC - MS)分析比较了超临界流体萃取法、水蒸气蒸馏法、索氏提取法及超声提取法所得提取物中的挥发性化学成分,分别鉴定出37,45,27及37种化学成分。
The volatile compounds of extracts obtained by SFE, steam distillation, soxhlet extraction and ultrasound extraction were analyzed by GC-MS. 37, 45, 27 and 37 compounds were identified respectively.
研究了超声振荡技术应用于乙酸萃取硅灰石时的钙离子萃取率。
The use of ultrasonic vibration in acetic acid extraction of Ca2+ from wollastonite increased obviously the extraction ratio of Ca2+ ion.
分别考察回流法提取法、超声波萃取法及微波萃取法。选择最优提取工艺,对样品进行含量测定。
The backset current extraction, ultrasonic-assisted extraction and microwave extraction were tested to select the optimum extraction and the quantitative analysis of specimen was made.
本文探讨并确定了最佳的萃取干燥方式,结果表明萃取干燥的最佳方式是:先超声多次萃取,再适温张紧干燥。
The optimum of the mode was discussed and determined in this paper. The result shows that the best mode is ultrasonic-extracting for several times and then drying tightly.
索氏萃取法、微波萃取法、超声波萃取法高粱红色素的产率分别为16.5%、15.03%和13.38%。
Theyield rate of traditional Soxhlet, microwave-assisted and supersonic extraction are 16.5%, 15.03% and 13.38% respectively.
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