光度

The tea polyphenols have been determined by spectrophotometric analysis using the principle of colored compounds produced by the diazonium coupled reaction.

利用芳香族伯胺重氮化偶合生成有色化合物的原理，建立了分光光度法测定茶多酚含量的方法。

Spetrophotometry ; determination/tea polyphenols ; diazonium coupled reaction

分光光度法；测定/茶多酚；重氮化-偶合反应

This method is based on the diazotization of sulfadiazine with sodium nitrite in acidic medium and the coupling reaction with α-naphthylamine.

在盐酸介质中，利用磺胺嘧啶－亚硝酸钠－α-萘胺的重氮化－偶合反应，建立了流动注射光度法测定磺胺嘧啶的新方法。

The reducing product is monoamine and diamine with 72 % yield. Based on the characteristic of mo- noamine with strong fluorescence, this paper has analyzed the content of mo- noamine and diamine by diazotization method combined...

根据单胺具有强烈荧光的特点，采用重氮化法和荧光分光光度法相结合，测出混合胺中的单胺与双胺合量分别为22.54％和67.22％，其余是无机盐。

Cefminox sodium reacted with 2,4 dinitrophenol to form a charge transfer complex in methanol acetone and can be quantitatively determined by spectrophotometric method at 403 nm.

利用头孢米诺钠与2，4 二硝基苯酚在甲醇丙酮介质中反应，形成电荷转移络合物，采用分光光度法测定。

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

Moreover regardless of adopts what kind of existence the existent solution, digit imaging system's latitude must be a certain that cannot be intervened artificially value on the physical level after leaving factory. Some digital cameras are known as alterable latitude, but they change camera's latitude by past treatment through DSP. So users cannot change latitude, light-shade transition or color transition as film camera just by replacing film's type. Now the civil camera's minimum ISO is 50. This value is discommodity for users to photo by the long exposure or other similar mode.

另外无论采取何种目前存在的解决方案，由于目前具有动态范围可调功能的数字照相机都是针对CCD所采集的数据进行再处理，因此，数字成像系统物理层上的宽容度动态范围始终是一个人工不可干预的固定值，这样的话，用户无法像胶片一样仅仅改变胶片型号便能实现宽容度和色彩过渡的改变以方便画面的创意，而且目前民用照相机感光度的最低值一般为ISO50，这个值在进行类似长曝光等方式的创意摄影时仍存在较大的不便之处。

When proceeding the research of drug identification by ultraviolet spectrophotometry, this paper adopts the approaches below: to identify Metronidazole Buccal Tablets and Potassium Sodium Dehydroandroan Drographolide Succinate by ulviolet maximum absorbent wavelength; to identify Metronidazole Disodium Phosphate for Injection by ulviolet maximum absorbent wavelength and minimum absorbent wavelength; to identify Ceftriaxone Sodium for Injection and Clarithromycin Tablets by retention time of high performance liquid chromatography- ultraviolet spectrophotometry.

通过测定紫外最大吸收波长λ_(max鉴别甲硝唑口颊片和炎琥宁、测定紫外最大吸收波长λ_(max和最小吸收波长λ_(min鉴别注射用甲硝唑磷酸二钠，结合高效液相色谱(high performance liquid chromatography-ultraviolet detector，HPLC-UV)中保留时间的测定鉴别注射用头孢曲松钠和克拉霉素片，本文建立了药物鉴别的紫外分光光度法。

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。

In this article, matrix sold-phase dispersion technique was used for extracting and cleaning up five organophosphorus pesticide residues from rapeseed.

采用基质固相分散法从油菜籽中提取、净化油菜生产中常用的5种有机磷农药，用配有火焰光度检测器的气相色谱定性和定量分析。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。