查询词典 spectrophotometry

Dinitrophenol;; Charge?transfer reaction;; Spectrophotometry 毕业论文 http://www.dxsip.com

二硝基苯酚；荷移反应；分光光度法毕业论文 http：//www.dxsip.com

It is a method most in use to analyze drugs.This paper chooses the antibiotics intending to be registered as research topics to study their identification, tests and assay by ultraviolet spectrophotometry. These antibiotics includes Metronidazole Buccal Tablets, Metronidazole Disodium Phosphate for Injection, Ceftriaxone Sodium for Injection, Clarithromycin Tablets, Potassium Sodium Dehydroandroan Drographolide Succinate.

本文选择拟注册的抗生素类药物甲硝唑口颊片、注射用甲硝唑磷酸二钠(Metronidazole Disodium Phosphate for Injection)、注射用头孢曲松钠(Ceftriaxone Sodium for Injection)、克拉霉素片和炎琥宁(Potassium Sodium Dehydroandroan Drographolide Succinate)为研究对象，应用紫外分光光度法进行鉴别、检查和含量测定研究。

Thirty individuals of red swamp crayfish were collected from the ponds and rivers in Hefei City, Feixi County, and Feidong County of Anhui Province in May 2005, and the residual amounts of Cd, Pb and Cr in a total of 84 ectoskeleton, liver, and muscle samples were determined by atomic absorption spectrophotometry.

2005年5月在合肥市、肥东县、肥西县的池塘河沟采集雌雄组克氏原螯虾共30只，分离出几丁质外骨骼、肝脏和腹部肌肉组织样品84份，用原子吸收法测定其中Cd、Pb、Cr的残留量。

The effect of current density on the composition, structure and morphology of Ni-W alloy electrodeposit obtained in pyrophosphate bath were studied by the methods of spectrophotometry, X-ray diffraction and metallurgical microscope.

采用分光光度法、X射线衍射和金相显微镜等方法研究在焦磷酸盐体系中，电流密度影响下所获得的Ni-W合金电沉积层的组成、结构和表面形态。

Results There was almost no flavonoid in eluate of 30% ethanol,the concentration of eluate of 95% ethanol was 0.956mg/ml by U-V Spectrophotometry.

结果 经定性检测，30％乙醇洗脱液几无黄酮，紫外分光光度法测量95％洗脱液中总黄酮的含量为0.956mg/ml。

Results The re was almost no flavonoid in eluate of 30% ethanol,the concentration of eluate of 95% ethanol was 0.956mg/ml by U-V Spectrophotometry.

结果 经定性检测，30％乙醇洗脱液几无黄酮，紫外分光光度法测量95％洗脱液中总黄酮的含量为0.956mg/ml。

The experimental results were compared with those obtained by traditional methods of water _ bath heating saponification and enzymology _ spectrophotometry.

目前采用最多的皂化方法是将待测物与KOH的甲醇溶液加热回流1 h[ 3]，但由于其耗时长，不适应于大量样品的测定。

Methods The LPL cDNA was isolated from the human epiploon adipose tissue by means of RT-PCR. The LPL cDNA was ligated into the pcDNA3.1Zeo. The recombinant pcDNA3.1Zeo-LPL cDNA was identified by endonucleases, PCR and DNA sequencing. COS-1 cells were transfected with the recombinant LPL gene plasmid using Lipofectamine 20001M The LPL mass in cells and the culture medium were determined by a Markit-M LPL Kit. Spectrophotometry was used to measure the LPL activity.

采用RT-PCR法从人大网膜脂肪组织获取LPL cDNA基因，以pcDNA3.1Zeo质粒作为载体，运用基因克隆技术构建野生型人LPL cDNA重组质粒，限制性内切酶酶切、PCR以及双向测序鉴定重组质粒；运用Lipofectamine 2000将重组pcDNA3.1 Zeo-LPL cDNA质粒导入COS-1细胞，RT-PCR法检测LPL mRNA，ELISA法和比色法分别检测细胞裂解液及细胞培养基中LPL浓度及活性。

We first studied the interaction mechanism of Erythrosin B with proteins by spectrophotometry and fluorospectrophotometry, calculated their binding number, binding constants and binding site, and estimated their binding type.

将分光光度法和荧光光度法结合，首次研究了四碘荧光素与蛋白质的作用机理，计算了结合数、结合常数和结合位置，判断出结合类型。

Objective］ The aim of this research was to study the detection method of ester and lactone by spectrophotometry.

［目的］研究酯和内酯的分光光度检测方法。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。