查询词典 chromatography

Three developing systems were used for chromatography of TLC. UV 254nm, 366nm and anisaldehyde as a chromogenic agent were used for detecting compounds of these strains.

本研究设计4种内生菌发酵培养基，对89株分离自傣药植物且具有高抗菌活性的内生菌及5株潜在放线菌新种进行摇瓶发酵，发酵液的提取物用3种展层系统作薄层色谱展层，用UV(254nm、366nm)和茴香醛试剂进行检测。

A rapid and sensitive method using gas chromatography has been developed for the determination of the anthelmintic levamisole in edible tissues of swine , poultry and goats.

左旋咪唑为咪唑并噻唑类广谱驱虫药，具有潜在的基因毒性，我国农业部规定以母体药物形式表现的最高残留限量，在牛、羊、禽类和猪的肌肉、肾脏及脂肪中为10μg／kg，在肝脏中为100μg／kg。

Paper chromatography of anthraquinone derivatives in Chinese rhubarb was investigated.

本文研究了中药大黄中蒽醌衍生物纸上层析的扩展剂体系和其他条件。

Gas chromatograpHy/mass spectrometry was used to analyze the chemical constituents of TKC antiknock .

采用气相色谱质谱联用技术分析抗爆剂 TKC辅助剂的成分。

The auxiliaries of gasoline antiknock additive TKC were analysed by means of gas chromatography/mass spectrometry.

采用气相色谱/质谱联用技术对汽油抗爆剂 TKC的辅助剂进行了组分分析。

Based on the physical meaning of each term in the linear parameter log I (a constant correlating the affinity of solut e t o stationary phase) of stoichiometric displacement model for retention o f solute, the thermodynamic characteristics of log I of solute in revers ed-phase liquid chromatography were investigated theoretically. This poi nt was tested by experimental data with two linear relationships:(1) plot of log I vs 1/T with apolar, polar small solut es and proteins;(2) plot of log I vs log Po/w (partition co effi cient of solute between n-octanol and water) with apolar and polar smal l solutes.

依据液相色谱中溶质计量置换保留模型及线性参数log I(与1 mol溶质对固定相的亲和势大小有关的常数)，通过作图得知非极性和极性小分子溶质及生物大分子的log I与绝对温度的倒数1/T，以及小分子溶质的log I与其在正辛醇-水中分配系数的对数log Po/w呈线性关系，从两方面进一步证明了log I具有热力学平衡常数的性质。

A high performance liquid chromatography-mass spectrometry analytical method for illicit drugs,apomorphine,sildenafil and alprostadil,in medicines for erectile dysfunction has been developed.

建立了高效液相色谱-电喷雾电离质谱法同时测定性保健品中违禁药物脱水吗啡、西地那非和前列地尔的分析方法。

Analysis of ratio of hydrogen to nitrogen in synthetic cyclic gas by approximate calculation was introduced and compared with gas chromatography.

介绍采用近似计算方法来计算合成塔循环气氢氮比的分析方法，并将其分析结果与气相色谱仪分析方法相比较，表明该分析方法是可行的。

The chloroform layer and the aqueous layer were separated by multiple column chromatography including macroporous resin, silica gel and polyamide column and preparative HPLC. The compounds obtained were identified by mass spectra and NMR data.

大青叶乙醇提取物，用氯仿萃取后得到氯仿层和水层，各层再分别采用硅胶柱、大孔树脂柱、聚酰胺柱、制备液相、葡聚糖凝胶柱层析及重结晶等分离手段进行分离、纯化，并应用化学性质和质谱、波谱法（1H-NMR、13C-NMR、HMBC）鉴定其化学结构。

The distribution of organic matter in sediments is heterogeneous. To study OM enrichment mechanism and interaction of organic matter with inorganic minerals in argillaceous sediments, we employed size grading, microscope, X-ray diffraction and gas chromatography to obtain information on OM and minerals.

在泥质沉积物颗粒分级的基础上，用显微镜检测、XRD和色谱分析等手段获取有机质和无机矿物的特征，探讨了二者间的相互关系以及有机质富集的差异性。

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。