溶剂提取
- solvent-extraction
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方法:采用溶剂提取和柱层析色谱分离,根据化合物理化性质和光谱数据鉴定其结构。
Method : Compound were isolated by solvent-extraction together with column chromatography and the structure were determined by spectroscopic analysis .
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为了对胡桃楸中抗肿瘤活性成分进行分析,采用溶剂提取法和两相溶剂萃取法对其进行初步分离.同时采用细胞实验观察其分离组分的活性。
In order to analyze the anti-tumor active composition of juglans mandshurica , the preliminary separation of it was carried out by using solvent-extraction process and two-phase extraction methods ; simultaneously the separation composition of anti-tumor activity was observed by using cell experiment .
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超临界CO2和有机溶剂提取艾蒿叶中风味物质的研究
Study on extracting flavor effective component of artemisia argyi with solvent extraction and supercritical fluid extraction
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方法尿液经有机溶剂提取,HPLC荧光检测法。
METHODS The urine samples were extracted with organic solvent and determined by HPLC RF .
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以超临界CO2为溶剂提取天津冬菜中的呈色物质。
This paper is focused on extraction of present-color materials in Tianjin-DongCai by supercritical CO2 .
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提取方法主要包括传统的溶剂提取法、微波法、超临界CO2萃取法;
The method of extraction mainly includes organic solvents extraction , microwave extraction and supercritical carbon dioxide .
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同时研究了不同的提取方法,采用特殊的PR混合溶剂提取挥发油。
Different extraction methods were also compared .
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同时对不同溶剂提取的黄酮类化合物做了薄层层析(TLC)的研究。
Flavonoid extracted with different solvents were also studied by TLC ( thin-layer chromatography ) .
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番茄红素的提取方法主要包括:有机溶剂提取法、酶反应法、超临界CO2萃取法等。
The extracted methods of lycopene mainly include : organic solvent extraction , enzymatic reaction extraction and supercritical CO2 extraction .
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结果表明,两种溶剂提取的醇溶蛋白SDS-PAGE带谱均较简单,品种间差异小,难以把各供试品种互相区分开来。
The results showed that SDS-PAGE patterns of the two kinds of zeins both simple and differences among varieties were small .
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方法:用不同溶剂提取的部位,采用TLC、GC、HPLC及氨基酸分析仪对其配方颗粒与传统煎剂中化学成分进行定性鉴别比较。
Methods : To analyse chemical constituents in compatible granule and traditional decoction of Er Chen Tang by TLC . GC and HPLC .
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方法尿样经β葡萄糖醛酸酶水解后,用有机溶剂提取,再以N,O双三甲硅烷基三氟乙酰胺进行衍生化,衍生物用GC/ECD法分析。
Method The urine samples were hydrolyzed with β - glucuronidase were extracted in organic solvent . The extractives were derived with BSTFA and the analytes as trimethylsilyl derivatives were determined by GC .
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为建立三黄痔疮膏中大黄素的质控标准。采用HPLC的方法进行含量测定,以乙醇为溶剂提取有效成分,去除基质。
To establish quality control standards for emodin in " San Huang Zhi Chuang Ointment ", HPLC method was applied to assay the content of emodin in the ointment .
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方法:采用溶剂提取结合中性氧化铝进行样品前处理,用HPLC法,以蒸发光散射检测器测定黄芪甲苷含量。
METHODS : Pre-processing of sample was performed by solvent extraction and neutral aluminum oxide , the content was determined with evaporate light scattering detector ( ELSD ) by HPLC .
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加速溶剂提取法(Acceleratedsolventextraction,ASE)是一种新型提取法,其特点是省时,省溶剂,高效,污染小。
Accelerated solvent extraction ( ASE ) is a new extraction method . It is not only fast , efficient but also it makes little pollution and save organic solvent .
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用Chelex100法及有机溶剂提取法联合提取DNA扩增STR基因座的比较研究
The comparison of DNA extraction methods by using Chelex 100 only and the combination using of both Chelex and organic solvent extraction method in case of STR polymorphism study
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采用有机溶剂提取总磷脂,高效薄层层析分离PC和PE,进一步用不同展开体系分离纯化非缩醛磷脂和缩醛磷脂。
The total phospholipids were extracted and PC , PE were separated as above , non - plasmalogens and plasmalogens were separated and purified by the method of HPTLC with different developing system .
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结果表明,用70%乙醇溶剂提取4h总黄酮含量最高,不同产地的三七茎叶中总黄酮的含量差别不大。
Results showed that using 60 % alcohol for 4 hours of extraction could achieve the highest contents of total flavonoids .
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丁香油的传统提取方法为水蒸气蒸馏和有机溶剂提取等,近年来新兴的超临界CO2萃取技术被认为是提取天然植物挥发油的高效洁净工艺。
Traditional extraction methods for clove oil are steam distillation and solvent extraction . Supercritical carbon dioxide extraction ( SFE ) is considered as a new and green process for the essential oil extraction .
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采用HPLC法进行齐墩果酸的检测,研究了木瓜中齐墩果酸的提取方法,发现以无水酒精等有机溶剂提取效果最好。
The content of oleanolic acid was detected by HPLC and the extraction method of oleanolic acid from Chinese floweringquince was investigated . The optimal extraction results were got with organic solvent such as water-free ethanol .
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辛香料油树脂是通过溶剂提取法从辛香料中萃取出色香味等成分,脱除溶剂后得到的产品。ABS树脂色母粒黑点产生的原因及其解决方法
Oleoresin extracted with solutions from spices contains pigment , aroma and taste of spice . THE REASONS AND THE SOLUTIONS FOR THE FORMATION OF BLACK STAIN IN THE PRODUCTION OF ABS PIGMENT DISPERSIONS
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目的研究大黄超临界CO2萃取后药渣的提取工艺。方法番泻苷A为指标,以单因素考察确定药渣溶剂提取与树脂精制条件。
OBJECTIVE To study the extraction for rhubarb residue after SFE-CO2 . METHODS Indicated by the content of sennoside A , the conditions of residue solvent extraction and resin purification were determined by single factor trial .
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方法利用溶剂提取、萃取、柱色谱和化学衍生化方法进行分离,根据化合物的光谱数据(IR,MS,1HNMR,13cNMR)和理化性质鉴定其结构;
The compounds were isolated by various column chromatography and identified by their spectral data ( IR , MS , 1H-NMR , 13 C-NMR ) and physicochemical properties respectively . According to the clinical efficacy of E.
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在100℃的温度条件下,用加速溶剂提取(ASE)提取样品中的有机氯农药,用凝胶渗透色谱(GPC)结合Florisil柱净化,以RTX-5MS毛细管色谱柱分离、ECD检测器测定。
The method was based on accelerated solvent extraction at 100 ℃, gel permeation chromatography ( GPC ) combined with Florisil cartridge clean-up prior to GC / ECD .
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方法:以药材不同溶剂提取和萃取浸膏作为受试样品,进行体外抗DPPH·自由基活性实验并采用UV法测定其总黄酮的含量,筛选活性部位;对有效部位进行分离。
Methods : Different solvents extractions of the medicine as samples of UV spectrophotometer for content determination of flavonoids and in vitro activity anti DPPH ? free radical experiments , select and separate effective parts of the herb .
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研究结果表明:经微波处理10min桑叶,以70%乙醇作溶剂提取桑叶总黄酮的浸出率最高。
The results showed that the highest extraction rate occur in pretreatment for 10 minutes by microwave and solvent extraction by 70 % alcohol .
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用有机溶剂提取和水煎提取两种方法得到血竭α葡萄糖苷酶抑制剂若干不同部位,测得其对α葡萄糖苷酶的半抑制量ID50;
Dragon 's blood α - glucosidase inhibitor was obtained by organic solvent extracting and water decocting and their ID 50 was determined .
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其中SFE-CO2提取总皂苷的提取率可达到2.88%,远高于其它的溶剂提取方法;
The extracting efficiency of SFE-CO2 is the highest ( 2.88 % ), which is far greater than other solvent extraction methods .
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结果HPV-DNA经柴胡水提物作用后,其PCR扩增检测为阴性,最低有效浓度为0.2g/mL,而用其他有机溶剂提取部分PCR扩增检测为阳性。
Results After the water extracts of Bupleurum Chinese reacted with HPV-DNA , the PCR amplification showed negative with the minimum effective concentration 0.2 g / mL. But the other organic solvents extracts from Bupleurum Chinese were positive .
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与溶剂提取法和索氏提取法相比,微波提取虎杖色素的每次提取时间分别由24h和2h减小为300s,提取率分别从91.0%和73.5%增加到97.2%。
Compared with the solvent or soxhlet extraction , microwave extraction reduced the extraction time from 24 h or 2 h to 300 s and increased extraction rate from 91.0 % or 73.5 % to 97.2 % , respectively .