• 采用溶剂分离结合色谱进行成分分离。

    METHODS:To isolate the flavonoides and sitosterol derivants, the solvent extraction together with the column, chromatography and TLC methods were used.

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  • 采用色谱定性,色谱法分离提纯三氯蔗糖。

    Sucralose was purified by column chromatograph and determined by thin layer chromatograph.

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  • 溶剂提取各种色谱法分离光谱技术鉴定结构。

    Method: The compounds were extracted with solvents, isolated by various column chromatography and identified by spectroscopic methods.

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  • 色谱法分离成分利用光谱数据确定其化学结构

    Methods: Column chromatography was used in the isolation procedure. The structures of isolated compounds were elucidated by spectral data.

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  • 利用硅胶色谱法化合物进行分离,运用波谱确定结构

    Methods: the compounds were isolated by silica gel column chromatography, and their structures were elucidated by spectral methods.

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  • 采用各种色谱进行分离纯化,运用理化性质波谱进行结构鉴定

    Methods the compounds were isolated by column chromatographic methods, their structures were elucidated on the basis of physical properties and spectral analysis.

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  • 溶剂提取硅胶色谱法进行分离理化性质和光谱数据鉴定其结构

    Method: Compounds were separated by solvent extraction and column chromatography with silica gel and structures were elucidated by chemical evidence and spectral analysis.

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  • 分别采用硅胶色谱法溶剂提,分离优质塑料抛光中的油脂和磨料部分。

    Silica gel column chromatography and solvent extraction were used to separate grease and abradant in a kind of excellent polishing paste for plastics, respectively.

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  • 利用硅胶色谱法对牛白藤进行分离纯化,根据理化性质磁共振谱数据鉴定结构。

    Methods the compounds were isolated and purified by repeated silica column chromatography and identified by their physical characteristics and nuclear magnetic resonance spectrum.

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  • 硅胶色谱法乙酸乙酯-石油梯度洗脱,自何首乌中提取分离二苯乙烯单体成分。

    Methods: (1) to separate stilbene glycoside by using silica gel column chromatography with gradient elution consisting of ethyl acetate and petroleum ether.

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  • :(1硅胶色谱法乙酸乙-石油梯度洗脱,自何首乌中提取分离二苯乙烯单体成分。

    Methods: (1)To separate stilbene glycoside by using silica gel column chromatography with gradient elution consisting of ethyl acetate and petroleum ether.

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  • 采用色谱分离,高效液相色谱法细胞膜色谱法联用,并结合体药理实验确定太白花中的有效成分

    METHOD S The effective component was determined by cell membrane chromatography and reversed phase high performance liquid chromatography. The pharmacological actions in vitro were testified.

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  • 采用溶剂提取色谱法分离纯化大豆粉末磷脂(卵磷脂含量14.05%),得到纯度卵磷脂产品(纯度92.80%)。

    Phosphatidylcholine of high purity(PC, content 92.80%) was prepared from market soybean power phospholipids(PC content 14.05%) by using solvent extraction and column chromatography.

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  • 采用RP HPLC对荧光素钠注射液进行成分分析并用硅胶色谱法主要杂质进行分离,根据质核磁共振谱数据进行结构鉴定

    Methods The components were analyzed using RP-HPLC. The main impurities were separated using silica gel column chromatography, which were identified by MS and NMR.

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  • 柠檬鹳草香茅精。香茅醇和香叶醇含量测定填充和毛细色谱

    Oils of eucalyptus citriodora, geranium and citronella. determination of citronellol and geraniol content. gas chromatographic method on packed and capillary column.

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  • 内衍生反应色谱法中,选择分析对象为建筑材料中的甲醛测定

    In in-column derivatization reaction chromatography, the chosen analyte was the free formaldehyde in building materials.

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  • 采用高效液相色谱法,使用反相色谱二极管阵列检测器测定·可湿性粉剂吡虫啉和哒螨灵含量

    Using reversed-phase chromatographic column and diode array detector, content of imidacloprid and pyridaben in their water soluble powder was measured with high effective liquid chromatography.

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  • 实验结果表明,衍生高效液相色谱法适用水产品河豚毒素检测

    From the results of above, detection of TTX in aquatic products by post column derivation HPLC is feasible.

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  • 采用火焰极性毛细管色谱法代替原来填充测定空气和废气中的丁醇。

    Using the hydrogen flame polar capillary vessel gas phase chromatography to replace the original packing column method, isobutyl alcohol in waste gas was determined.

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  • 本文ODS纯水洗脱液,高效液相色谱法(HPLC)测定了大豆粉中的低聚糖

    In this paper, oligosaccharides in soybean flour were determined by HPLC on an ODS column, using pure water as eluent.

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  • 第四章:填充色谱法快速测定獾油中冰片含量。

    In Chapter Four, Fast Analysis of Borneolum in HuanYou by Packed Column Gas Chromatography.

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  • 介绍了双氢火焰离子化检测器同时进样色谱法分析气体样品中非甲烷烃

    Non-methane hydrocarbons in the gas sample are analyzed simultaneously by GC with double columns and double FIDs.

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  • 本文采用高效液相色谱法以甲醇(50:50)作为流动采用ODS-C18色谱成功地测定了克·福种衣剂有效成分含量

    Using HPLC reversed phase column(ODS-C18), methanol:water (50:50) as mobile phase, the contents of two active ingredients of Seed-coating of Kefu were determined successfully.

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  • 提出衍生高效液相色谱检测工业合成牛磺酸及其中间产物2-氨基乙基硫酸酯

    This paper presents a method for separating and determining industrial synthetic taurine and intermediate product 2-aminoethyl sulfate by pre-column high performance liquid chromatography (HPLC).

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  • 前衍生试剂,建立了高效液相色谱法间接测定2-乙酰氧基异丁酰新方

    A rapid reverse high performance liquid chromatography method based on the iso - propyl alcohol as an agent of pre-derivatization is developed for the determination of 2-acetoxyisobutyryl bromide.

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  • 本文介绍了离子色谱测定无机阴离子,对污染严重水样通常采用预处理

    The paper describes the pretreatment of the waste water by using ion chromatography to determine inorganic ions, and discuss the preparation and regeneration of the pre-processing column.

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  • 首次利用半制备采用高效液相色谱法分离制备了洋葱两种主要黄酮类化合物(纯度超过98%)。

    Two main flavonoids in the onion were isolated and prepared by semi-preparative HPLC at the first time (purity more than 98%).

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  • 综述凝胶渗透色谱质油测定中的应用,并采用两支高效聚合物凝胶色谱代替传统的硅胶建立了分子量和程的评价系统。

    The establishment of the gel permeation chromatography method for the the determination of molecular weight of high boiling petroleum was described in detail .

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  • 对于色谱法而言,典型差异不同批号供应商色谱温度流速

    In the case of gas chromatography typical variations are different lots or suppliers of columns the temperature and the flow rate.

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  • 对于色谱法而言,典型差异不同批号供应商色谱温度流速

    In the case of gas chromatography typical variations are different lots or suppliers of columns the temperature and the flow rate.

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