谱色

In this study,a HPLC system equipped with an Aminex HPX-87H column was applied to determine oxalic acid in bleaching filtrates.

本研究以一个基于阴离子交换柱的离子交换色谱法作为对照方法，利用一套配备了AminexHPX-87H液相色谱柱的高效液相色谱系统测定漂白废液中的草酸浓度。

For the determination of five carbamate pesticide residues by high performance liquid chromatography with gel permeation chromatography purification, sample was extracted with acetonitrile and purified with gel permeation chromatography. Methanol-water was used as the mobile phase by gradient elution, flow rate of 1.0mL/min, using a fluorescence detector and quantitating with external standard method.

凝胶渗透色谱-液相色谱法测定5种氨基甲酸酯类农药残留中，实验采用乙腈提取，凝胶渗透色谱柱对样品进行净化，以甲醇-水为流动相，进行梯度洗脱，流速1.0mL／min，荧光检测器检测，外标定量测定。

The TLC of them were concordance.They presented the same color fluorescence in the corresponding position at the ultraviolet light(365nm). After the vanillic aldehyde sulphuric acid ethanol solution developed, violet color spots presented at the same place. Reference substance of Polysaccharide presented violet color ,but in the corresponding position the crude and the prepared didn't show the spots .

生远志正丁醇部位色谱和蜜远志正丁醇部位色谱基本一致：紫外灯（365 nm）下二者在相应位置呈相同颜色荧光，香草醛硫酸乙醇溶液显色后二者在相应位置的几个斑点均呈紫罗兰色，且远志皂苷元对照品斑点呈紫罗兰色，而在与其相应位置生远志供试品和蜜远志供试品均未检视到相应斑点。

The TLC of them were concordance.They presented the same color fluorescence in the corresponding position at the ultraviolet light(365nm). After the vanillic aldehyde sulphuric acid ethanol solution developed, violet color spots presented at the same place.

生远志正丁醇部位色谱和蜜远志正丁醇部位色谱基本一致：紫外灯（365 nm）下二者在相应位置呈相同颜色荧光，香草醛硫酸乙醇溶液显色后二者在相应位置的几个斑点均呈紫罗兰色，且远志皂苷元对照品斑点呈紫罗兰色，而在与其相应位置生远志供试品和蜜远志供试品均未检视到相应斑点。

Our company also supply SunTech column, the column theoretical plate number up to 80,000 / m and above, PH 2.0-9.2 around tailing factor 0.90-1.12, while the prices of imports of the same specification, only the other half of the column .

我公司另外还供应suntech 色谱柱，此色谱柱理论塔板数可达80000块/米以上，PH 2.0-9.2左右，拖尾因子0.90-1.12，而价格只有其他相同规格进口色谱柱一半。

The QSRR modelings have good stability and accuracy for prediction of retention indexes of hydrocarbons on the different polar stationary phases.

所建立的在不同极性色谱柱上的烃类化合物的色谱保留QSRR模型预测烃类化合物的色谱保留值时具有较好的稳定性和准确性。

Because of good selectivity to anions in solution of calix[4]pyrroles, the synthesis of calix[4]pyrrole-bonded stationary phase will also provide new means for separation to anions and neutral substances in chromatography and promote the development in supramolecular chemistry.

基于杯[4]吡咯化合物在溶液中对阴离子的选择性识别性能，利用其对色谱固定相进行改性以合成针对阴离子和中性小分子化合物的色谱柱将为色谱分离技术提供新的手段，推动超分子化学在分析化学中的应用并促进杯吡咯化学的发展。

In our research, through derivatization of stable calix[4]pyrroles, active substituting units were jointed on the calixpyrrolic skelecton. After acylamide and free radical transfer reaction, the preparation of new calix[4]pyrrole-bonded stationary phases were fulfilled. the separation abilities of them to inorganic and organic anions and medicines were exploited and new analytical methods were established. The separation mechanisms were discussed. At the same time, through using calix[4]pyrroles as additives in CZE to influence the electrophoresis of inorganic anions, the recognition mechanisms and influencing factors in supramolecular chemistry were also studied.

本项目以新型杯吡咯大环化合物分子识别化学研究为基础，设计合成了含活泼取代基的官能化杯[4]吡咯化合物，通过酰胺化反应和原位自由基链转移反应制备了新型的杯[4]吡咯色谱固定相，系统研究了具有阴离子识别功能的杯[4]吡咯大环化合物作为离子色谱的分离介质对无机、有机离子型化合物和药物分子的色谱分离性能，建立了新的分析方法，对分离机理进行了探索和验证；同时将杯[4]吡咯化合物用作毛细管电泳流动相添加剂，利用其对无机阴离子电泳行为的影响探讨超分子化学中分子识别的机理和影响因素。

A detailed discuss in selection of detector, chromatographic column, method of preconcentration in gas chromatographic determinations, which is the most practical technique among analysis of sulphur-containing compounds, and prospects of analytical testing techniques for volatile organic sulfur in water are presented in this paper.

气相色谱技术是测试该类物质的实用技术，从检测器的选择、色谱柱的选择和预富集方法三个方面详细介绍了采用气相色谱分析水中微量挥发性有机硫化物过程中遇到的主要问题和解决方法，并展望了水中微量挥发性有机硫化物分析测试技术的发展方向。

A detailed discuss in selection of detector, chromatographic column, method of preconcentration in gas chromatographic determinations, which is the most practical technique among analysis of sulphur-containing compounds, and prospects of analytical testing techniques for volatile organic sulfur in water are presented in this paper. Contents

气相色谱技术是测试该类物质的实用技术，从检测器的选择、色谱柱的选择和预富集方法三个方面详细介绍了采用气相色谱分析水中微量挥发性有机硫化物过程中遇到的主要问题和解决方法，并展望了水中微量挥发性有机硫化物分析测试技术的发展方向。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。