查询词典 spectrophotometry

TEM, FTIR, spectrophotometry characterized the morphology, structure and dispersion stability of nanoparticles respectively. The results show that the inorganic nanoparticles in the aqueous solution can redisperse more effectively through ultrasonic irradiation than by conventional stirring, which was the basis for monomers to polymerize on the surface of nanoparticles. By selecting proper nanoparticles and monomers, the long-stable latexes were successfully prepared.

研究了超声辐照下多种纳米粒子(SiO〓、Al〓O〓、TiO〓)在水体系中的分散、粉碎及活化等各种行为，采用TEM、FTIR、分光光度法等对纳米粒子的形态、结构、分散稳定性进行了表征，证明超声辐照比常规搅拌更有效地实现无机纳米粒子在液相中的分散，为单体在纳米粒子表面的聚合创造了条件。

The effect of high speed stirring on the properties of starch/PVA blend solution was studied by means of spectrophotometry,microscopy,molecule weight analysis and rheometry etc.

高速搅拌是实现淀粉与PVA溶液共混的良好方法，可明显提高淀粉PVA共混薄膜的力学性能、透明性、耐水性及生物降解性﹝1，2﹞。

Trace Ru could sensitively catalyze the fading reaction of chlorosulphophenol azo rhodanine with KClO3 in H2SO4 medium in water bath at 85 ℃, and the fading level was in direct proportion to Ru in certain content range. Based on this, a novel determination method of trace ruthenium was established by catalytic kinetic spectrophotometry.

H2SO4介质中，水浴85℃条件下，痕量Ru能灵敏地催化KClO3氧化氯磺酚偶氮罗丹宁的褪色反应，且褪色程度与钌含量在一定范围内成正比，据此建立了催化动力学光度法测定痕量钌的新方法。

Methods:We determined total flavonoids contents in leaves of Acer Saccharum by ultraviolet and visible spectrophotometry.

采用紫外-可见分光光度法对糖槭叶中总黄酮含量进行测定。

objective:to determine total flavonoids content in the leaves of acer saccharum.methods:we determined total flavonoids contents in leaves of acer saccharum by ultraviolet and visible spectrophotometry.results:the flavonoids content was 1.035mg/g in the leaves of acer saccharum.conclusion:the flavonoids content is rich in the leaves of acer saccharum and the leaves have pharmic value.

目的：本文对糖槭叶中的总黄酮含量进行测定。方法：采用紫外-可见分光光度法对糖槭叶中总黄酮含量进行测定。结果：糖槭叶中总黄酮含量为1.035mg/g。结论：糖槭叶中含有丰富的黄酮类化合物，具有可观的药用开发价值。

A method for the micro determination of germanium by flow injection－spectrophotometry with CCD diode array detector is reported, based on the color reaction between germanium and salicyl fluorone in the presence of cetyl trimethyl ammonium bromide. A good linear relationship was obtained in the range of 0～3.0 mg/L for germanium.

研究了在溴化十六烷基三甲铵存在下，锗与2，3，7－三羟基－9－水杨基荧光酮－6的显色反应，采用二极管阵列检测器，建立了检测微量锗的流动注射分光光度法。

In this paper the content of fourteen microelements in astragulus root of northeast China was determined by flame atomic absorption and graphite oven absorption spectrophotometry, compared with four pretreatment slaking methods and gained good determination methods for some elements.

本文以火焰原子吸收法和石墨炉原子吸收法测定了东北黄芪中 14种微量元素的含量，并对 4种预处理消化方法进行了比较，选择出对某种元素较好的测定方法。

PK values of 3-ethoxy-N-desmethyldiazepam (3-EtO-NDZ) in ethanol and acetonitrile containing various concentrations of sulfuric acid, determined by spectrophotometry and spectropolarimetry, were found to be 3.4 and 0.63 respectively. Temperature dependent racemization of enantiomeric 3-EtO-NDZ in ethanol containing various acid concentrations was studied by monitoring changes of ellipticity at 365 nm as a function of time on a spectropolarimeter.

3-乙氧基－N去甲基安定（3-EtO-NDZ；diazepam=安定）在含不同硫酸浓度的乙醇和乙腈中的pK值用光谱法和旋光光谱法作了测定，其结果分别为3.4和0.63.3-EtO-NDZ之对映异构体在含各种不同酸浓度的乙醇中与温度相关的消旋过程，用旋光光谱仪选择其圆二色谱在365nm波长处强度的改变为时间函数的方法作了测定。

The comples formed with phen,dipy and variant valence metal such as Fe,Co,Ru and so on was statable and had higher electric potential at low valence.There was difference between the colours of low and high valence methal complex,so it played very important rule in oxidate-reduction titration and spectrophotometry.

邻二氮菲、联吡啶与铁、钴、钌等变价元素形成配合物，低价态呈稳定态，电对电位升高，且高低价态配合物颜色有明显差异，使之在光度分析，氧化还原滴定中获得重要应用。

This apparatus can be used to determine the formaldehyde, Sodium formaldehyde sulfoxylate , nitrite ,nitrate ,sulfur dioxide and pesticide residue in food rapidly and quantitatively by spectrophotometry..

仪器采用分光光度法，快速定量检测食品中甲醛、吊白块、亚硝酸盐、硝酸盐、二氧化硫和农药残留，适用于食品生产企业、农业生产基地、农业市场、质量监督、卫生防疫等部门。

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。