查询词典 TLC

749Mg/ml and 0.778u/ml, respectively. 5. Study on the viscosity changes of reaction solution and analysis of enzymatic hydrolysis products by TLC, HPLC showed that ChiB was an endo-type cleavage enzyme. It decreased viscosity of reaction solution, hydrolyzed β-(1, 4) glucosidic bond of chitosan, acted on GlcN-GlcN, GlcN-GlcNAc and/or GlcNAc-GlcN glucosidic bond. It did not act on GlcNAc-GlcNAc glucosidic bond. Hydrolysis products of chitosan were composed of chitotriose, chitotetraose and chitopentose.

通过测定酶解液体系粘度和对酶解产物的TLC、HPLC分析，在国内首次深入地研究并报道了内切、外切壳聚糖酶的酶解作用模式，结果表明：酶ChiB是一种内切酶，以内切方式水解壳聚糖的β-（1，4）糖苷键，即作用于GlcN-GlcN、GlcN-GlcNAc和／或GlcNAc-GlcN糖苷键，不能作用于GlcNAc-GlcNAc糖苷键；酶解终产物以壳三糖、壳四糖、壳五糖为主。

METHODS AK was purified by DEAE ion-exchange cellulose(DEAE-52) and sepharose Cl-4B .The component of the saccharide was determined by GC and TLC.Its MW was measure d by gel filtration.The form of glucosidic bond was detrermined by IR.The conten t of the saccharide was measured by colorimetry.

采用DEAE纤维素(DEAE-52)柱层析和凝胶柱层析分离纯化草乌多糖，气相色谱法和薄层层析法测定其多糖组成，凝胶过滤法测定其相对分子质量，红外光谱测定其苷键类型，比色法测定其糖含量。

The TLC systems can be used to isolate and identify querctin and β-sitostero in Gynura divaricata.

以上薄层色谱条件可以较好地分离和鉴别白子菜中的槲皮素和β－谷甾醇。

Objective To explore the regulation effect of haematoxylin on immunogenic reaction of rats suffered from UC by serum TLC subgroup, IgG and lysozyme level examination.

目的 通过对溃疡性结肠炎大鼠的血清TLC亚群的检测和IgG、溶菌酶含量的测定，探讨苏木对UC大鼠免疫功能的调节作用。

Six experimental stages were designed in our procedure, those are:(1) metabolite recovery and tested sample preparation: the metabolites were recovered by Amberlite XAD-2 absorption, followed by MeOH elution and solvent concentration;(2) antioxidant detection and strain selection: samples were quantitatively analyzed by the inhibition effects on formation of lipid peroxides and TBARS to screen the strains able to produce antioxidants. According to the established screening methods, we chose out a strain of actinomycetes, designed as AMBL-029C;(3) antioxidant purification: the fermentation broth was recovered by a series of separation techniques including centrifugation, Amberlite XAD-2 absorption, followed by MeOH elution and a successive TLC purification. The resulting primary purified compound [temperately designed as AMBL-029C-TS] was further analyzed by HPLC to monitor its purity;(4) physical-chemical characteristics: judging from the acid-base fractionation experiments, and the pH and temperature stability tests, the compound was deduced to be a acidic compound with the properties of low polarity and highly pH and temperature stable;(5) mechanism of the antioxidant: in comparison with some other known antioxidants, TS was subjected to investigate its antioxidant mechanism, together with BHT,-tocopherol, as well as two streptomyces metabolites, homogentisic acid and -phenylpyruvic acid, which were previously isolated as the natural antioxidants in our laboratory.

针对本实验目的，我们设计了以下的实验步骤﹔（1）二次代谢物回收及检测样本处理：我们将发酵所得的培养上清液，利用疏水吸附性树酯Amberlite XAD-2吸附回收，并以甲醇溶离及真空减压浓缩脱水等方式处理，以取得提供抗氧化活性筛选之检测样本；（2）抗氧化活性检测及菌种筛选：以「过氧化脂质」和「硫丙二醯尿」的生成量进行定性定量分析以作为抗氧化物质生产菌筛选之用；经此筛选程序，我们选获了具有抗氧化物质高生产力的菌株，命名为AMBL-029C；（3）抗氧化物质的分离纯化：针对生产菌株的发酵回收处理液，以矽胶薄层色层分离法经物质层析纯化后，并以高效能液相层析法(High performance liquid chromatography；HPLC)分析物质可得一初级纯化物质，命名为AMBL-029C-TS；（4）抗氧化物质的物理化学性质分析：由酸碱转溶（acid-base fractionation）实验得知，此抗氧化物质属於中低极性的强酸性物质，对温度（37℃-100℃）及酸碱度（pH3.0-13.0）均表现出高稳定性；（5）在抗氧化机制探讨方面，我们针对数种不同的抗氧化机制进行探讨，即： 1。

The process does not depends on catalytic hydrogenization method, has simple reaction condition, high reactant yield all over 75%, can use TLC to track the whole reaction process, and is more suitable to the transformation of function group in the organic synthesis field as the result of N-Boc or N-Cbz derivative is easy to loss protective reaction, which has spreading application prospect.

该方法不依赖于催化氢化方法，反应条件简单，反应产物产率高，均在75％以上，反应过程可用TLC进行跟踪，且由于N-Boc或N-Cbz衍生物更易发生去保护反应，在有机合成领域更适宜于官能团的转化，具有广阔的应用前景。

From 30 different strains of fungi 11 strains of Beauveria bassiana and 1 strain of Aspergillus fumigatu were selected out, according to their ability to hydroxylate androst-4-ene-3, 17-dione by TLC for the initial screening.

本实验通过对30株真菌转化4AD甾体类化合物能力的筛选，初筛获得对4AD具有转化能力的球孢白僵菌11株，烟曲霉1株。

The results showed that the utilization ratio of polymer reached 100% and the conversion of leucoquinizarin was more than 99% determined by TLC.

合成反应中高分子利用率为100%，通过薄层色谱分析发现1，4—二羟基蒽醌隐色体的转化率基本达到100%。

Limonin and nomolin from citrus fruits could be obtained to use No.2 solvent extracting in water bath for 60 minutes at 50℃, and identified and determined by TLC and HPLC effectively. The recovery of two components were 90.4% and 91.1% respectively. The HPLC analysis system included: C18 column (4.3mm ×25cm), the elution with methanol : acet...

柠檬苦素类化合物在抗癌、镇痛、调节体内胆固醇水平、防止动脉粥样化和除虫等方面的明显效应问，越来越受到人们的重视，所以，在功能食品、保健品以及

Methods The qualitative identification of Radix Paeoniae Alba,Rhizoma Chuanxiong and Radix Puerariae Lobatae in FBC was carried out by TLC,and the content of paeoniflorin was determined by HPLC.

方法采用薄层色谱法对处方中白芍、川芎、葛根3味中药进行定性鉴别，采用高效液相色谱法对制剂中的芍药苷进行定量测定。

The Porsche Owner: But it's my car!

可，这是我的车呀。

LOX_83}{Oh, another bunch of wackos.

{LOX_83}{呃，又一群怪人。