• 目的研究超声萃取萃取银杏外种皮中白果酸工艺过程

    AimTo study the technical process to extract ginkgolic acids in the exotesta of Ginkgo Biloba L.

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  • 发明提供是一超声萃取蒸馏分离―环己烷苯―正庚烷物系的方

    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.

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  • 建立了7%右旋苯氰菊酯杀虫烟雾剂超声萃取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).

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  • 与传统的超声萃取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.

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  • 萃取方法也进行了比较,结果表明,超声萃取搅拌萃取相比,微波萃取快速、高效

    Compared with the ultrasound-assisted extraction method and stirring extraction method, the microwave-assisted extraction method was time saving and more efficient.

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  • 方法1 051份疑似肺结核病人痰液样品同时应用涂片、漂浮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.

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  • 何首乌70%甲醇超声提取浓缩,用氯仿萃取分离游离结合型醌,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.

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  • 综述超声萃取植物中草药茶叶特定成分、溶液金属等所产生影响

    The effects of ultrasound on the enzyme in plants, herbal medicine, inclusion of tea and metallic solvent are also reviewed.

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  • 实验理论上超声强化超临界流体萃取机理进行了研究。

    The extraction mechanism of ultrasound-enhanced supercritical fluids was studied theoretically and experimentally.

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  • 采用低频超声处理豆浆提高蛋白质固形物萃取

    Soybean slurry was processed by low frequency ultrasonic for enhancing the extraction rates of proteins and solids.

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  • 结果表明超声强化超临界流体萃取机理不是源于超声空化,而是超声微环境产生机械波动效应热效应

    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.

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  • 超临界CO2流体声速压力温度变化规律,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.

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  • 本文超声萃取原理、优点及其茶叶深加工应用作一综述,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.

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  • 方法甲醇萃取溶剂,采用超声提取法样品进行前处理,采用气相色谱-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.

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  • 结论:甘草黄酮提取可优选超声-微波协同萃取

    Ultrasonic-microwave synergistic extraction technique applied in extracting flavonoids of Glycyrrhiza is better than regular method.

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  • 提取效率得率绿色环保几个因素综合考虑,超声提取法超临界二氧化碳萃取比较理想两种提取方法

    Considering factors of extraction efficiency, oil yield and environmental protection, the ultrasonic extraction and the supercritical carbon dioxide fluid extraction are the appropriate methods.

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  • 采用索氏提取法、超声强化提取法和超临界CO2萃取分别提取大豆胚芽

    Soybean germ oil was extracted by Soxhlet extraction, ultrasonic-assisted extraction and supercritical CO2 extraction, respectively.

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  • 比较了传统有机溶剂萃取超声破碎浸提法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.

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  • 土壤样品虫啉快速压力溶剂萃取技术(PSE)与传统提取方法超声萃取振荡提取索氏萃取进行对比研究。

    Pressurized solvent extraction (PSE) of imidacloprid in soil comparing to traditional method such as ultrasonic extraction, shaking extraction and Soxhlet extraction were studied.

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  • 前言: 目的:研究超声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.

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  • 研制中药有效成分超声双频湍萃取装置

    An ultrasonic double-frequency turbulent extraction equipment has been developed for extracting effective ingredients in medicinal plants.

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  • 微波超临界协同超声萃取技术进行了讨论。

    The microwave and supercritical synergistic extraction methods are also discussed.

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  • 研究样品萃取量、超声萃取时间以及不同萃取溶剂微量挥发性成分萃取效果影响

    The effects of sample concentration, ultrasonic extraction time, and different extracting solvent on the extraction of volatile microconstituents were also investigated.

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  • 方法采用超声萃取法提取多糖成分。

    Method:The Polysaccharide was extracted by ultrasonic wave.

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  • 实验超声辅助萃取技术传统萃取技术进行了对比,得出超声辅助萃取制得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.

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  • 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.

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  • 研究了超声振荡技术应用乙酸萃取灰石时离子萃取率。

    The use of ultrasonic vibration in acetic acid extraction of Ca2+ from wollastonite increased obviously the extraction ratio of Ca2+ ion.

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  • 分别考察回流法提取法、超声萃取微波萃取法。选择优提取工艺,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.

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  • 本文探讨确定最佳萃取干燥方式结果表明萃取干燥最佳方式:先超声多次萃取温张紧干燥。

    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.

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  • 索氏萃取法、微波萃取超声萃取法高粱红色素分别为16.5%、15.03%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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