查询词典 chromatographic

The pre-treatment method of samples and the chromatographic conditions of the analysis were critically examined in experiment.

对样品前处理条件和色谱分离条件进行了详细的研究和优化。

With the aid of modern electronic and microcomputer technique, an advanced chromatographic data-collecting system was constructed.

利用现代电子和微机技术，建立了一套较为先进的色谱数据采集系统。

To develop a simple and rapid reversed-phase high performance liquid chromatographic method for the determination of dehydroandrographolide in Andrographis and Clerodendron compatible preparation in mice plasma.

建立一种简单、快速的反相高效液相色谱法测定穿心莲、路边青配伍药液中脱水穿心莲内酯在小鼠血浆中的浓度。

In order to isolate the active compounds in ethyl acetate fraction of Psoralea corylifolia L., activity-guided isolation was performed along with chromatographic techniques. Four active compounds were isolated from ethyl acetate fraction and identified by their NMR spectral data and physical-chemical properties. They are corylin and bavachin, which showed stimulating effect on osteoblastic proliferation and differentiation, isopsoralen and psoralen exhibited activity of promoting cell differentiation in some degree.

为了追踪分离补骨脂乙酸乙酯萃取物中的活性成分，本实验采用多种色谱分离技术，以活性测试为导向，结合波谱技术及理化数据，从补骨脂乙酸乙酯萃取物中分离并鉴定了4个活性化合物的化学结构，它们是具有促进细胞增殖和分化作用的补骨脂异黄酮和补骨脂二氢黄酮，对细胞分化有一定促进作用的异补骨脂素和补骨脂素。

The article proposed a method of the gas chromatographic determination for methyl cyanoacetate and intermidiates.

提出了用 6 。5 %吐温+ 5 。5 %邻苯二甲酸二壬酯涂于 10 2白色硅烷化担体上的不锈钢色谱柱，对氰乙酸甲酯合成的中间体和产品进行定量分析，取得较满意的效果。

A sample-pretreated method of ether-extraction-precolumn-derivation was established, and the chromatographic conditions, which was used for determinating the derivant of extracted UDCA, were decided to be Hypersil C_(18) column(250×4.6mm, 10μm), acetonitrile-methol-0.005mol·L~(-1) phosphoric buffer-triethylamine(50:27:42:0.25, adjusted to pH3.0±0.1 by phosphoric acid) as mobile phase with detective UV wavelength at 247nm and column temperature at 35℃.

建立了乙醚提取-柱前衍生化血浆样品预处理方法，采用Hypersil C_(18)柱(250×4.6mm，10μm)，乙腈-甲醇-0.005mol·L~(-1)NaH_2PO_4缓冲液-三乙胺(50：27：42：0.25，磷酸调节pH3.0±0.1)为流动相的HPLC法，以溴苯乙酮为衍生化试剂，在247nm处测定家兔血浆中熊去氧胆酸衍生化产物。

The HBsAg in culture supernatant was purified by the same method, and their chromatographic and electrophoretic profiles were compared.

采用相同条件纯化培养上清中的HBsAg，比较二者的层析图谱及纯化抗原的电泳图谱。

Three polyphenols, scopoletin , rutin and esculetin, could be successfully separated by using micellar electrokinetic capillary chromatographic method with non-ionic surfactant Tween 20 could successfully separate 3 polyphenols, scopoletin , rutin and esculetin.

采用非离子表面活性剂Tween20胶束电动毛细管色谱法，成功分离了莨菪亭、芸香苷和七叶亭3种多酚化合物。

METHODS: Galanga Resurrectionlily Rhizome volatile oil was extracted by wet distillation method and determined by GC-MS , and the relative content of different constituents was determined by chromatographic peak area normalization method.

采用水蒸气蒸馏法提取山柰挥发油，用气相色谱-质谱联用技术进行测定，并用色谱峰面积归一法确定各化学成分的相对含量。

The chromatographic fingerprint of Gentiana straminea Maxim in Qingzang plateau was established by high performance liquid chromatography.

利用高效液相色谱法建立了青藏高原秦艽的色谱指纹图谱。

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。