silica column

Hyphenation of C_ ( 18 ) Gel Silica Column and Flow Injection with Inductively Coupled Plasma-Mass Spectrometry and Its Application on the Seawater Analysis

碳18键合硅胶柱流动注射电感耦合等离子体质谱联用技术及其在海水分析中的应用

Methods Compounds were isolated by silica column chromatography , and their structures were elucidated by spectral methods .

方法用硅胶柱层析进行分离，用有机波谱学的方法进行结构鉴定。

The hardness of the silica column increased with the increase of aging time .

延长陈化时间，硅胶整体柱的硬度随之增大。

Research of the Influence of Modifier on Monolithic Silica Column

改性剂对硅胶整体柱结构性能的影响

This paper studied the method for silica column chromatography method for analysis and quantity of alkanolamide .

本文通过两个不同方法数学模型的建立定量地分析配送中心的选址。

Preparation of Monolithic Silica Column and Separation of Benzene Substituted Compounds

硅胶整体柱的制备及对苯取代物的分离

Study of Microchip Analytical System with Micro-Nano Monolithic Silica Column as Pretreatment Functional Part

含微纳结构硅胶整体柱的预处理芯片分析系统的研究

Preparation and Evaluation of Monolithic Silica Column by Sol-gel Technology for Capillary Electrochromatography

溶胶-凝胶技术制备毛细管硅胶整体柱及其应用

Preparation of Monolithic Silica Column and the Effect of Preparative Conditions on Monolithic Column

硅胶整体柱的制备及制备条件对整体柱的影响

Preparation Approach of Monolithic Silica Column

硅胶整体柱芯的制备方法研究

But the crack and deformation of column bed during the preparation of monolithic silica column were the serious problem .

常规硅胶整体柱的制备首先要解决制备过程中柱体开裂和变形弯曲等技术难题。

Preparation and Evaluation of Aryl-Bonded Monolithic Silica Column

芳基键合硅胶整体柱的制备及性能评价

Preparation and Evaluation of Organic-inorganic Hybrid C_ ( 16 ) Monolithic Silica Column for Capillary Electrochromatography

杂化硅胶基质C（16）整体柱制备及电色谱性能

It was purified by Sephadex G50 / Silica column chromatography .

用SephadexG50及硅胶柱层析对其进行了纯化，得率为5‰。

The resulting extracts were then purified by silica column chromatography for analyzing arachidonic acid ( AA ) content by HPLC .

方法：采用柱层析法从刺叶提灯藓植株中分离提取，并用高效液相色谱法测定其花生四烯酸含量。

Isolation by silica column : a - acid , lupulone purity is 78.95 % , recovery rate is 76.56 % .

硅胶柱层析法：蛇麻酮的纯度为78.95%，回收率为76.56%。

The influence of different TMOS / PEG ratio and concentration of porogenic diluent on monolithic silica column was also discussed .

探讨了原料比例和不同制孔剂浓度对整体柱结构的影响。

The claded monolithic silica column was applied to the separation of benzene substituted compounds which were baseline-separated in normal-phase chromatography .

由此制备的硅胶整体柱床经包覆后制成硅胶整体柱，该柱在正相色谱模式下分离了苯取代化合物，效果令人满意。

The alcoholic extract of French landaise geese gall was extracted by petroleum ether and isolated by silica column chromatography respectively , a white oily component could be obtained .

朗德鹅胆经乙醇浸提得醇提物，然后经石油醚萃取，硅胶柱层析分离得到白色油状组分，采用气相色谱-质谱联用技术进行了组成及相对含量分析。

Isolation , Purification and Identification of apigenin-7-O - β - D glucuronide in Marchantia convoluta with Silica Column Chromatography , RP-HPLC and LC-ESI-MS

硅胶柱色谱/RP-HPLC/LC-ESI-MS分离纯化鉴定拳卷地钱中芹菜素-7-O-β-D-葡萄糖醛酸苷

As temperature raised , retentions of all solutes decreased gradually on diol silica column , while had a different variation trend in aminopropyl and δ - glucolactone bonding silica column .

随着温度的升高，在二醇硅胶中，溶质保留均降低；而在氨丙基硅胶和δ-葡萄糖酸内酯键合硅胶中，各个溶质表现出不同的变化趋势。

By adding amine modifier to the mobile phase and comparing with a bare silica column , it is found that the silanol groups on the surface of silica matrix in the new stationary phase were sheltered successfully .

通过向流动相中加入胺改性剂和与裸硅胶柱进行比较，发现聚合在硅胶基质表面的聚多巴胺层可以很好地掩蔽硅羟基，避免了硅羟基与分析物的次级作用力。

Objective : The methods of silica column chromatography , RP HPLC , UV , IR and LC ESI MS for isolating , purifying and identifying apigenin 7 O β D glucuronide in Marchantia convoluta was established in this article .

目的：建立分离纯化鉴定拳卷地钱中芹菜素-7-O-β-D-葡萄糖醛酸苷的硅胶柱色谱/RP-HPLC/LC-ESI-MS方法。

Methods A mixture of 7-epi-10-deacety taxol , taxol , cephalomannine was efficiently separated through a normal phase silica column using t-butyl acetate as a mobile phase , and 7-epi-taxol was transformed to taxol in the presence of the alkaline Al2O3 at 40 ℃ .

方法用乙酸叔丁酯为单流动相，硅胶为填充柱的正相色谱系统分离。使用碱性氧化铝，在40℃对7-表-紫杉醇进行催化而转化成紫杉醇。

Preparation of Low Viscosity Stationary Liquid Fused Silica Capillary Column

几种低粘度固定液熔凝硅石毛细管柱的制备

METHOD : Using silica gel column chromatography and re-crystallization .

方法：工业酒精提取、硅胶柱层析和重结晶等方法进行提取分离，化学和光谱法鉴定结构。

The Investigation of Double Peak Phenomenon in Fused Silica Capillary Column Gas Chromatography

石英毛细管气相色谱中的双峰现象&一种可能的溶剂效应

Using silica gel column chromatography made the further separation to chloroform extract .

采用硅胶柱层析的方法对最有效部位进行进一步的分离。

Preparation and Application of the Crosslinked Fused Silica Capillary Column

交联键合型石英毛细管柱的研制及其应用

Further purification by Silica gel Column Chromatogram was used .

因此进行了以后的硅胶柱层析纯化。