查询词典 chromatography

Chromatography , liquid drug monitoring antitussive CEPS

色谱法，液相，药物监测，止咳药

Objective: To establish the gas chromatography in drinking water chloroacetate detection.

目的：建立气相色谱法测定生活饮用水中氯乙酸的检测方法，并应用于水样的检测。

Leaves by derivatization with 9-fluorenylmethyl chloroformate followed by reversed-phase high-performance liquid chromatography［J］.

施新琴，崔为正，裘立群，等。用反相高效液相色谱-紫外检测法测定1-脱氧野尻霉素的含量［J］。

Methods Determination of DNJ by derivatization with 9-fluorenylmethyl chloroformate and followed by reversed-phase high-performance liquid chromatography and a fluorescence detector; the inhibitory curves on α-glucosidase at the enzymatic level and the activities to α-aglucosidase in vitro were observed in the everted sac experiment.

以氯甲酸药甲酯柱前衍生RP-HPLC荧光检测法对DNJ进行分析；在酶水平测定样品的α-糖苷酶抑制曲线，在离体水平用反转肠囊实验测定样品的α-糖苷酶抑制活性。

Objective:To develop a method for determination of chlorogenic acid in Yan Shu Tangjiang by high performance liquid chromatography.

目的：采用高效液相色谱法，建立咽舒糖浆中绿原酸的含量测定方法。

These three kinds of Bile extraction were qualitatively detected by using the paper chromatography and infrared spectral scanning method, and the results show that These extractions have the same Rf value and infrared spectra's characteristic absorption peak as choleic acid, glycocholic acid and taurocholic acid standard preparation which can prove that These three kinds of Bile extraction are choleic acid, glycocholic acid and taurocholic acid respectively.

采用薄层层析法和红外光谱扫描法对提取物进行定性检测，结果证明三种提取样品分别与胆酸、甘氨胆酸及牛磺胆酸标准品显色斑点Rf值相同，红外光谱特征吸收峰均一致，表明提取出的三种样品分别为胆酸、甘氨胆酸、牛磺胆酸结晶体。

The steroids of cholest 4 ene 3 one and cholestane 3,6 dion in Yisheng Capsules were determined by capillary gas chromatography. The results provide a reference to work out its quality standard.

采用毛细管气相色谱法测定了益肾胶囊中胆甾-4-烯-3-酮、胆甾-3，6-二酮的含量，为该制剂制度质量标准提供了参考依据。

Morphometry of numerical density and electron probe X-ray quantitative microanalysis were adopted to measure the alterations in the number and calcium content of chromaffin granules in adrenal medulla cells during the agonist treatment. Secretion of epinephrine was detected by the high performance liquid chromatography.

运用细胞立体形态计量法计算分泌过程中的嗜铬颗粒数目的变化，运用电镜X射线显微分析法测量分泌过程中嗜铬颗粒内钙含量的变化，并运用高压液相色谱分析法测定离体细胞在激动剂作用后的肾上腺素分泌情况。

High-speed countercurrent chromatography is reported for the preparative isolation and purification of a chromone from aloe vera. The crude extract was obtained by a series of pretreatment of aloe vera leaves and extracted from decolorizing active carbon with methanol.

以芦荟全叶为原料，经过一系列的预处理手段，从脱色剂活性炭中获得芦荟色酮粗提物，再经过溶剂分配和富集后采用高速逆流色谱对其中的色酮成分进行分离纯化。

The free radical scavenging properties of six Aloe species are to be investigated in some modified chemical system. The antioxidant was purified by silica column and thin layer chromatography and analyzed by HPLC. A fraction was purified from A. brevifolia Mill showed the most effective scavenging activities on 〓 and ·OH (66. 01% and 38. 98% respectively). With the analysis of IR spectrum, UV spectrum and mass spectrum, the structure of FA was identifed as 8-C-D-glucopyranosyl-2- [2-hydroxy] propyl-5-methyl-7-hydroxychromone. Its scavenging activity on free radicals is higher than that of aloe-emodin. Its antioxidant activity may be due to the phenoxyl on glucosyl chromone which can be react with free radicals and form relatively stable free radicals.

本研究利用分别产生超氧阴离子自由基和羟自由基的化学模型体系研究比较了不同品种芦荟提取物的清除活性氧自由基的抗氧化作用，进一步利用硅胶柱结合薄层层析法和反相高压液相色谱法，从短叶芦荟叶子中首次分离了具有较强自由基清除能力（超氧阴离子自由基和羟自由基清除率分别为66.01％和38.98％）的成分FA，利用红外光谱、紫外光谱和质谱等仪器分析结果推断出该活性成分的分子结构为8-C-吡喃葡萄糖-2-[2-羟基]-丙基-5-甲基-7-羟基对氧萘酮，它的自由基清除能力高于芦荟大黄素，是一种天然抗氧化剂。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。