This paper describes a capillary column gas chromatography method for quantitative analysis of an 0.8 % solution of transfluthrin repellent.
本文描述了用毛细管气相色谱对0.8％四氟菊酯驱蚊药液的定量分析方法。
Silica gel column chromatography and solvent extraction were used to separate grease and abradant in a kind of excellent polishing paste for plastics, respectively.
分别采用硅胶柱色谱法和溶剂抽提，分离优质塑料抛光膏中的油脂和磨料部分。
By solvent extraction, column chromatography, and crystallization, fexofenadine (96.3% purity) was obtained with yield 63.5%.
通过对发酵液进行溶媒抽提、柱层析、重结晶，得到纯品，收率达到63.5%，纯度96.3%。
Using polyamide column chromatography, gathering effluent fraction of ethanol, applying rutin as standard curve, we estimated the content of crude flavonoids.
乌蕨提取物经过聚酰胺柱层析，收集乙醇洗脱部分，以芦丁作标准曲线，用比色法测定总黄酮。
The conversion rate from AA into PGG2 and PGH2 by chemical reaction and column chromatography was about 34%. The purity of endoperoxide products was more than 90%.
通过化学反应和柱层析，AA转变为PGG_2和PGH_2的转换率大约为34%，前列腺素内过氧化物的纯度可达90%以上。
The method of extracting the auxin in seaweeds with organic solvent, separating and purifying the auxin by ether extraction method and column chromatography has been established.
确立了以有机溶剂提取海藻中的生长素，以乙醚萃取法和柱层析法对生长素进行分离纯化的方法。
Their homogeneity was determined by gel column chromatography and electrophoresis.
凝胶柱色谱和聚丙烯酰胺凝胶电泳鉴定纯度。
This paper is to discuss the feasibility of refining taurine in the extract of Meretrix meretrix by column chromatography and determination of taurine by spectrophotometry.
作者主要探索用离子交换树脂柱析法提纯文蛤提取液中牛磺酸及用吸收光谱法测定牛磺酸的可行性。
The soybean phosphatidylethanolamine and phosphatidylinositol were prepared by combining methods of solvents extraction and silica gel column chromatography from soybean oil sediment.
采用溶剂萃取法和柱色谱法相结合的工艺，从大豆油脚中制备肌醇磷脂，研究了不同洗脱剂对柱色谱分离脑磷脂和肌醇磷脂效果的影响。
The extracts were separated by silica gel column chromatography, thin-layer chromatography and paper chromatography.
提取液经柱层析分离及薄层层析和纸层析进一步纯化。
Bio-transforming the canrenone with the enzyme system of Aspergillus ochraceus SIPI-4411; By solvent extraction and silica gel column chromatography, the compound SIPI-CANR was obtained.
应用赭曲霉SIPI-4411的羟化酶系统对化合物坎利酮进行生物转化，通过溶剂萃取、硅胶柱层析，获得转化产物SIPI-CANR化合物的纯品。
Methods: (1)To separate stilbene glycoside by using silica gel column chromatography with gradient elution consisting of ethyl acetate and petroleum ether.
方法：（1）以硅胶柱色谱法，乙酸乙酯-石油醚梯度洗脱，自何首乌中提取分离二苯乙烯苷单体成分。
METHODS CTX-dwas fractionated and purified from Naja naja atra venom by column chromatography and RP-HPLC.
方法应用柱层析及RP- HPLC，从眼镜蛇毒粗毒中分离纯化细胞素素（CTX）。
Method: Compound were isolated by solvent-extraction together with column chromatography and the structure were determined by spectroscopic analysis.
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。
The troublesome separation of column chromatography would be avoided as crude product recrystallized inn-butanol.
粗产物采用正丁醇重结晶，避免使用较繁琐的柱层析分离。
Methods:The isolation and purification were carried out by repeated silica gel column chromatography, and the chemical structures were determined by physicochemical properties and spectral analysis.
方法：采用反复硅胶柱色谱、葡聚糖凝胶色谱等分离纯化，通过理化常数和波谱分析鉴定其化学结构。
A type of column chromatography in which proteins are separated according to charge. Column is loaded with ions.
根据蛋白质所带电荷的不同而进行分离的一种柱层析技术。层析柱用离子装填。
Method the compounds were isolated by column chromatography and purified by recrystallization and the structures were identified by NMR spectral data and other methods.
方法通过反复柱色谱分离和重结晶纯化，并利用核磁共振波谱技术进行结构鉴定。
METHOD: the chemical constituents were isolated by using polyamide, silica gel column chromatography and HPLC, and the chemical structures were elucidated by UV, IR, NMR and MS.
方法：采用聚酰胺、硅胶柱色谱、高效液相色谱分离化学成分，UV、IR、NMR、MS等方法进行结构鉴定。
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。
Methods: the compounds were isolated by silica gel column chromatography, and their structures were elucidated by spectral methods.
方法：利用硅胶柱色谱法对化合物进行分离，运用波谱方法确定结构。
The inhibin plasmid DNA was extracted and purified by alkaline lysis method and DEAE-fiber column chromatography and its concn.
采用碱裂解法与DEAE -纤维柱层析法提取与纯化抑制素质粒dna，用分光光度法测定其浓度和纯度。
Method:Compounds were isolated by column chromatography and elucidated on the basis of spectroscopic analysis and comparison of references.
方法：柱色谱分离化合物，光谱分析和对照品比较鉴定结构。
Methods: to isolate the alkaloids, the solvent-extraction together with the column, chromatography and thin-layer chromatography methods were used.
方法：采用了溶媒分离法结合柱层析法、薄层层析法进行成分分离。
In purifying phase, the extracts were disposed by silica gel column chromatography and preparation lamella chromatography, then crystaled by N-Hexane.
纯化阶段，硅胶柱色谱及制备型薄层色谱处理提取物，正己烷沉淀结晶。
Methods The compounds were isolated by silica gel, ODS, and macroporous resin column chromatography and their structures were determined by means of spectral analysis.
方法利用正相、反相硅胶柱和大孔树脂柱色谱分离，并通过波谱技术进行结构鉴定。
Method: The compounds were extracted with solvents, isolated by various column chromatography and identified by spectroscopic methods.
方法：溶剂提取及各种柱色谱法分离，光谱技术鉴定结构。
METHODS ? The isolation and purification was performed by silica gel column chromatography and the structures were identified by spectral analysis.
用硅胶柱层析法分离纯化，用光谱法进行结构鉴定。
Pure TS99 could be obtained from pretreatment fermentation broth through macroreticular adsorbent, silica gel column chromatography and thin-layer chromatography.
发酵液经过预处理后，依次用大孔树脂吸附，硅胶柱吸附层析和薄层层析等分离方法即可获得农用抗生素TS99纯品。
Pure TS99 could be obtained from pretreatment fermentation broth through macroreticular adsorbent, silica gel column chromatography and thin-layer chromatography.
发酵液经过预处理后，依次用大孔树脂吸附，硅胶柱吸附层析和薄层层析等分离方法即可获得农用抗生素TS99纯品。
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