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   semi-preparative 的翻译结果: 查询用时:0.144秒
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semi-preparative
相关语句
  半制备
     Then purified with SP-Sepharose-FF and semi-preparative HPLC.
     所得粗肽用SP-Sepharose-FF层析柱和半制备型HPLC分离纯化。
短句来源
     In this study, theaflavin(TF1), theaflavin monogallate(TF2+TF3) and theaflavin digallate(TF4) in tea pigments are isolated and purified with high speed counter current chromatography combined with Sephadex LH-20 and semi-preparative HPLC. With the purified theaflavin, the standard curves have been set up by HPLC for theaflavins quantitation.
     应用高速逆流色谱结合Sephadex LH-20和半制备HPLC对茶色素中三种主要茶黄素(茶黄素,TF1;茶黄素单没食子酸酯,TF2+TF3;茶黄素双没食子酸酯,TF4)进行了分离纯化,并以它们为标样,建立了茶色素中三种主要茶黄素的HPLC定量法。
短句来源
     The semi-preparative high-performance liquid chromatographic condition of a new water-sol-uble porphyrin reagent-meso-tetrkis ( 3-bromo-4-sulfophenyl) porphine(meso-BrTPPS_4) hasbeen established.
     建立了meso-四(3-溴-4-磺酸苯基)卟啉(meso-BrTPPS_4)的半制备高效液相色谱分离提纯方法。
短句来源
     Silica gel column chromatography, semi-preparative HPLC and reverse-phase C18 columnchromatography were used to purify the target carotenoid.
     此后采用了柱色谱正相硅胶填充柱、反相C18填充柱、半制备HPLC色谱Si柱来分离纯化色素。
短句来源
     The compounds were isolated by the combination of column chromatographyon silica gel, RP-18, and Sephadex LH-20, preparative thin layer chromatography(PTLC), recrystallization, and semi-preparative HPLC.
     各部分采用常规的硅胶柱层析、制备薄层层析、凝胶Sephadex LH-20柱层析、反相硅胶柱层析、半制备HPLC以及重结晶等手段分离得到28个化合物。
短句来源
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  半制备型
     Comparison of the Separation Performances between Semi-Preparative Chromatographic Column and Chromatographic Pie
     半制备型色谱柱与色谱饼性能的比较
短句来源
     Then purified with SP-Sepharose-FF and semi-preparative HPLC.
     所得粗肽用SP-Sepharose-FF层析柱和半制备型HPLC分离纯化。
短句来源
     Isolation and preparation of five main compounds from the extract of Chinese Herb Epimedii by semi-preparative RP桯PLC were studied. The effects of the type of organic solvents in mobile phase on the separation of the extract was studied and compared.
     用半制备型反相高效液相色谱对淫羊富提取液中的五种主要化合物进行了分离和制备,比较了流动相种类对分离的影响,并对上样方式、流动相中有机溶剂浓度和上样量进行了研究。
短句来源
     A semi-preparative reversed phase liquid chromatography(RPLC) was used to isolate the chemical constituents from the chloroform extract of Patrinia villosa Juss.
     用半制备型反相高效液相色谱(RPLC)对白花败酱草氯仿萃取物进行了分离制备。
短句来源
  “semi-preparative”译为未确定词的双语例句
     A semi-preparative high speed counter-current chromatography with a two-phase solvent system composed of ethyl acetate-ethanol-water(4∶ 1∶5,V/V) was used to isolate and separate isoorientin and isovitexin from Patrinia Villosa Juss. The mobile phase was the lower phase,and operated at a flow rate of 2.0 mL/min,while the apparatus rotated at 800 r/min and the effluent was detected at 254 nm.
     应用高速逆流色谱分离制备白花败酱草中的异荭草苷和异牡荆苷,以乙酸乙酯∶乙醇∶水(4∶1∶5)为两相溶剂系统,上相为固定相,下相为流动相,流速2.0 mL/m in,主机800 r/m in,检测波长254 nm。
短句来源
     Method: The chemical constituents were isolated by silica gel column chromatography and semi-preparative high-performance liquid chromatography,and identified by physicochemical properties and spectral analysis(MS,()~1H-NMR and()~(13)C-NMR).
     方法:硅胶柱和制备液相色谱分离纯化,理化常数和波谱分析(1H-NMR,13C-NMR,MS)确定结构。
短句来源
     Semi-Preparative Separation of the Hydrolysis Products of Vulcanized Calcium Alkylphenol by High Performance Liquid Chromatography
     高效液相色谱用于硫化烷基酚钙添加剂水解物的分离制备
短句来源
     The semi-preparative high performance liquid chromatographic condition of the title compound, a new water soluble prophrin [T(4-MOP)PS4], has been established.
     本文研究了新水溶性5,10,15,20-四(4-甲氧基-3-磺酸苯基)卟啉[T(4-MOP)PS4]的反相高效液相色谱(HPLC)分离条件。
短句来源
     The peptide was purified twice with semi-preparative reversed-phase high performance liquid chromatography(RP-HPLC) to obtain an active fraction with an inhibitory concentration 50%(IC_(50)) of 43.5 μmol/L.
     选取其中活性最高的组分进一步分离,得到2个组分,其中活性较高组分的ACE半抑制浓度为43.5μm o l/L,基本为单一肽组分。
短句来源
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  semi-preparative
Further flash chromatography of the active fraction under alkaline conditions provided a highly active sub-fraction, and semi-preparative HPLC using gradients of water and acetonitrile resulted in the isolation of a single compound.
      
A semi-preparative reversed phase HPLC (Polygoprep 100-30 C18) was chosen as the final purification step.
      
Purification consisted of extraction of plant material with 0.05% trifluoroacetic acid, concentration on a C18 cartridge, and reverse-phase high performance liquid chromatography on a C18 semi-preparative column.
      
Examples of spectra obtained using the most common detectors are also shown and suggestions are made on how to proceed in developing efficient separation and identification methods at the analytical and semi-preparative scales.
      
The use of a semi-preparative gel electrophoretic procedure allows further fractionation of about 100 mg partially purified inhibitor material in a single run.
      
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The compositions of nystatin from different sources including International standard, Chinese working standard and samples of nystatin from manufacturers both inside and outside China were compared by using HPLC.Eight to ten peaks were obtained. The peak areas were processed with Sigma 10 Chromatography Data Station. From the chromatograms, the main components as well as their peak areas of all Chinese samples including Chinese working standard for nystatin differed from those obtained from some foreign countries.The...

The compositions of nystatin from different sources including International standard, Chinese working standard and samples of nystatin from manufacturers both inside and outside China were compared by using HPLC.Eight to ten peaks were obtained. The peak areas were processed with Sigma 10 Chromatography Data Station. From the chromatograms, the main components as well as their peak areas of all Chinese samples including Chinese working standard for nystatin differed from those obtained from some foreign countries.The main components of Chinese working standard for nystatin were peak 9 and peak 13 with peak areas of 55% and 20.1% of the total area respectively, while the main component of International standard for nystatin was peak 11 with peak area of 81% of the total area.The nystatin made in China was obtained from Actinomyces noursei isolated from soil in Guangdong. The nystatin obtained from foreign countries was from Streptomyces noursei. This might account for the difference in the HPLC results.Samples were subject to careful purification with HPLC using a semi-preparative column. The eluents collected were lyophilized and the purified samples from Chinese working standard for nystatin were assayed according to current Chinese Pharmacopoeia. The potency found with the purified sample from peak 13 (nystatin C_2) was 10,800 u/mg (±4.4%), whereas purified sample from peak 9 (nystatin C_1) gaves potency estimated much lower than the parent material.HPLC conditions:For analytical purpose: Column ODS-HC SIL-X-1, 0.26×25 cm; mobile phase MeOH—H_2O (68:32)) flow rate 1.3 ml/min; UV detector at 304 nmFor preparative purpose: Column 10 μm Nucleosil ODS, 0.7×25 cm; flow rate 5 ml/min; the rest of the conditions was same as above.

本文用高效液相色谱法分析了国内外12批制霉菌素,其中包括中国和国际标准品。固定相为10 μm ODS,流动相为甲醇—水(68∶32),流速1.3 ml/min,紫外检测波长为304 nm。制霉菌素可分得8~10个色谱峰。分析结果表明中国制霉菌素的主要组分及其相对含量与外国制霉菌素不同。以HPLC法进行分离制备,收集后的单一组分按中国药典一九七七年版进行初步的效价测定,其中一个主要组分的效价比中国制霉菌素标准品高一倍多。

In previous paper~[5], we reported that the main components C_1, C_2 were contained in Chinese nystatin but nystatin A, was the main component of nystatin outsido China.The purified samples C_1, and C_2(from Chinese working standard for nystatin) and nystatin A_1,(from American product) were prepared by HPLC using a semi-preparative column(0.7× 25cm,10μm Nucleosil ODS).C_1 and C_2 were identified to be nystatin A_3, and polyfungin B respectively by using UV, IR, Fluorescence spectrum, specific rotatory,~1HNMR,...

In previous paper~[5], we reported that the main components C_1, C_2 were contained in Chinese nystatin but nystatin A, was the main component of nystatin outsido China.The purified samples C_1, and C_2(from Chinese working standard for nystatin) and nystatin A_1,(from American product) were prepared by HPLC using a semi-preparative column(0.7× 25cm,10μm Nucleosil ODS).C_1 and C_2 were identified to be nystatin A_3, and polyfungin B respectively by using UV, IR, Fluorescence spectrum, specific rotatory,~1HNMR, FABMS, The potencies were determined according to the Ch. P. (1977) resulted as Follows, C_1, 3217 μ/mg±4.4%, C_2 10879μ/mg±4.4%, nystatin A_1, 3956 ±5.5%. Therefore, in order to distinguish Chinese nystatin from nystatin outside China, we suggested that the new name Chinyfungin replaced the present Chinese nystatin.

本文系统报道了用HPLC半制备柱从中国制霉菌素分离制备得到C_1、C_2和从美国制霉菌素分得A_1的色谱条件、制备方法以及紫外、红外、荧光光谱、旋光度、~1H核磁共振谱、快原子轰击质谱等测试数据。根据中国制霉菌素与国外产品的主要组分不同,前者为C_1(制霉菌素A_3)、C_2(Polyfungin B),后者为制霉菌素A_1,效价和稳定性前者均高于后者,建议中国制霉菌素重新命名为中制霉素(Chinyfungin)。

From the acid degradation:products of silkworm excrement crudechlorophyll mixture,pheophorbide a (58%),pheophorbide a’(11%),and pyrophe-ophorbide a(31%)were separated by semi-preparative HPLC and identified by~1H-NMR and MS.In tumor-bearing mice,this mixture(ppa)was accumulatedselectively in tumor tissues after i.v.administration.Its photodynamic property was three times as potent as that of photocarcinorin.

从蚕沙粗品叶绿素酸降解产物中分离制得在肿瘤中有选择性潴留作用,光动力学活性强于癌光啉的脱镁叶绿甲酯一酸 a 类组分混合物。经 HPLC 制备分离,~1H-NMR 和 MS 证明,它们为脱镁叶绿甲酯一酸 a(58%),脱镁叶绿甲酯一酸 a′(11%)和焦脱镁叶绿酸 a(31%)三种成分。

 
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