查询词典 chromatography

A high performance liquid chromatography method for the determination of quercetin and kaempferol in Stamen Neulumbinis was studied.

莲须为睡莲科植物莲的干燥雄蕊，能固肾涩精，可用于治疗遗精滑精、带下、尿频等。

STUDY OF THE QUANTITATIVE METHOD IN KATHAROMETER GAS CHROMATOGRAPHY BY USING AIR AS STANDARD

以空气作标准的热导池气相色谱定量方法的研究

D limonene was distributed among the culture flasks (200 mg/L). The flasks were incubated at 28oC on a rotary shaker (r/min=120) for 5 days. On completion, the culture broth were successively extracted with EtOAc. The extract was quantitatively measured by gas chromatography mass spectrometry analysis, The results showed that biocatalytic reactions were comprised of oxidation, including hydroxylation and ketonization which occurred at different positions of the D limonene, as well as hydrogenation, hydrolyzation, esterification and cyclic cleavage. These bacteria strains possess the distinctive biocatalytic capacities towards the D limonene. A series of terpenoids, including sesqui , di and tri terpernoids were also observed,which was accounted for D limonene had influence on the metabolites of marine bacteria.

以2216E为培养基，添加200mg/L的柠檬烯，在28℃，以120 r/min摇瓶培养5 d，用乙酸乙酯提取培养液，经GC MS分析其转化产物，结果显示，这些细菌能在柠檬烯的不同位置进行羟基化、羰基化等，并伴随有还原、水解、酯化、开环等反应，但转化能力和转化程度不同；在产物中，还检测到系列结构不同的其它萜类：包括倍半萜、二萜以及三萜等，这些萜类化合物的产生跟柠檬烯的加入有关，说明柠檬烯能影响细菌代谢产物的产生。

Under the conditions of konjak gum water solution 150 g/L,β-mannanase 50 IU/g konjak gum, hydrolytic temperature 50℃ and hydrolytic time 6 h, the hydrolysate is oligo-saccharides and mono-saccharides analyzed by thin-layer chromatography and HPLC analysis.

酶解的工艺条件为：魔芋胶浓度150g/L，加酶量50IU/g，酶解温度50℃，酶解时间6h。所获酶解产物经薄板层析和HPLC检测，主要为低聚糖以及少量单糖。

A method of high performance liquid chromatography-fluorescence detection for the simultaneous determination of kynurenine and kynurenic acid in serum was developed.

建立了在线衍生、双波长高效液相色谱-荧光检测器同时检测血清中犬尿氨酸(kynurenine， Kyn)和犬尿喹啉酸(kynurenic acid， KYNA)含量的方法。

Objective To develop a method of high-performancc liquid chromatography for the measurement of urine kynurenic acid and to observe the urine KYNA of spontaneously hypertensive rats and WKY rats with different ages.

目的 建立高效液相色谱荧光法测定尿液中犬尿喹啉酸含量的方法，观察不同周龄自发性高血压大鼠及其正常对照大鼠的尿KYNA含量变化。

Schizophrenia;kynurenine;kynurenic acid;high performance liquid chromatography

精神分裂症；犬尿氨酸；犬尿喹啉酸；高效液相色谱法

The twig of Lagerstroemia floribunda Jack were extracted with ethanol and isolated with silica gel column chromatography.

多花紫薇的枝经乙醇冷浸提取，依次用石油醚、乙酸乙酯和正丁醇萃取。

The stem barks of Lagerstroemia calyculata Kurz were extracted with methanol and isolated with silica gel column chromatography.

副萼紫薇的茎皮经甲醇冷浸提取，依次用石油醚、乙酸乙酯和正丁醇萃取。

The procedure of thin layer chromatography-spectrophotometry analysis of total triterpene in Lagerstroemia specious L.

采用薄层色谱分离-分光光度法测定大叶紫薇叶中的总三萜含量。

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。