查询词典 chromatography

A method for determination of basic nitrogen-containing compounds in mainstream smoke was established. In the condition of basic substance barium hydroxide powder and extractant chloroform, 18 basic nitrogen-containing compounds were analyzed by gas chromatography-selective ion monitored-mass spectrometry, such as pyridine, 2-methylpyridine, 2-methylpyrazine, quinoline and indole, etc.

在氢氧化钡碱性环境中，以三氯甲烷为萃取剂，采用气相色谱－选择离子监测－质谱法测定吡啶、2-甲基吡啶、2-甲基吡嗪、喹啉、吲哚等18种碱性含氮化合物。

Methods OASIS solid-phase extraction column was used to extract HP-HPLC in the plasma after basification; reverse high performance liquid chromatography was applied for determination.

血浆经碱化后，用OASIS固相萃取小柱提取血浆中丁螺环酮，采用反相高效液相色谱法紫外检测器检测。

By capillary gas chromatography of soil and bellflower in the content of DDT and heptachlor.

采用毛细管气相色谱法测定土壤和桔梗中七氯和滴滴涕的含量。

Benzene hexachloride, dichlorodiphenyltrichoroethane and organophosphorus pesticides in 103 soil samples collected from Wutongqiao district of Sichuan were detected by gas chromatography. Spatial distribution characteristics of residual pesticide in soils of transitional zone from mountain to plain was evaluated by employing the methods of GIS and geostatistical techniques.

以四川省五通桥区为例，利用气相色谱法检测丘陵平原过渡区103个样点的土壤样品中六六六、滴滴涕和10种有机磷农药残留量，利用地统计方法和GIS技术，评价研究区域内的土壤农药残留空间分布特征。

To establish gas chromatography for the determination of benzene series in the quality control samples.

目的 建立质控样品中苯系物的气相色谱测定方法。

Using solvent relief absorption gas Chromatography to estimate the concentration of the Benzene and benzene series in the room air.

采用气相色谱法测定室内空气中的苯和苯系物。

Benzene series in surface water was detected by purge and trap gas chromatography - mass spectrometry.

采用吹扫捕集和气相色谱-质谱联用对地表水中苯系物进行检测。

In this paper, a method of analysis which was based on thin layer chromatography was introduced. Benzimidazole derivative and amine were separated at first.

文中采用薄层层析法分离苯并咪唑衍生物及杂质，首先分离出苯并咪唑衍生物，然后用非水滴定方法分析含量，得到了准确的分析结果。

A method for the determination of sorbic acid and benzoic acid in meat product by gas chromatography was studied.

建立了肉制品中山梨酸和苯甲酸的气相色谱毛细管色谱柱检测方法。

A new method for the determination of benzoic acid and caffenine in drinks was developed by using high performance liquid chromatography .

本文提出高效液相色谱法同时测定饮料中苯甲酸和咖啡因的新方法。

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。