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The anodic oxidation reactions of butynediol and propiolic alcohol in the bright nickel electroplating were studied using ultraviolet spectrophotometry. The mechanism of the additives in the electroplating process was discussed.

采用紫外分光光度法研究了丁炔二醇和丙炔醇在光亮镀镍过程中的阳极氧化反应,以期进一步认识添加剂在电镀过程中的作用机理。

The stability of the red pigment from Prunus tomentosa Thunb was investigated by spectrophotometric methods in this paper,in order to provide a theoretical basis for the comprehensive utilization.

利用分光光度法系统研究了毛樱桃果实红色素的稳定性,从而为该色素的开发和利用提供科学依据。

Use a pyranometer with suitable filters or a spectroradiometer to measure the spectral distribution of the radiation imposed on the test item.

配合合适的过滤器使用日射强度计或者分光辐射度计来测量施加在测量对象上的频谱分布。

A new method of using a color splitting system in place of the filter is introduced. The prism spreads radiational energy over the photods surface. By selecting a photod, the operation wavelength can be selected.

利用三个棱镜构成棱镜组进行分光,色散棱镜将热辐射能展开成连续光谱,传送到光电二极管的有效面元上,通过选择光电管来选择相应的工作波长。

According to reflectional spectrum of pictures, we can measure hue by main wave length.

根据图像的分光反射率,建立主波长的操作型意义,因而可以定量地表示色相。

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。

The result indicates that the best method for extracting β-carotene is to saponify the test specimen one hour with 4% NaOH methyl alcohol solution in 60-70'c and then to separate with 3:7 acetone-benzine component solvent as extraction solvent, MgO as the absorbent, the acetone-benzine as the eluent. Extracted solvent has been determined in the color dish condition (1cm) by ultraviolet spectrophotometer at 447 nm. The result shows that the β-carotene in carrotis 0.134 mgg^(-1), 0.0863mgg^(-1) in red pepper and 0.0426 mgg^(-1) in spinach.

结果表明,比较优先的β-胡萝卜素提取方法是:试样用4% NaOH甲醇溶液在60℃~70℃皂化1h,用3:7的丙酮-石油醚混合溶剂提取,以Mgo为吸附剂,丙酮-石油醚为洗脱剂分离,提取液用紫外分光光度计在波长447nm,1cm比色皿条件下测定,得出蔬菜中β-胡萝卜素含量:胡萝卜为0.134mgg^(-1),红椒为0.0863mgg^(-1),菠菜为0.426mgg^(-1)。

An advantage of this,interleaver is that the coupling ratio of coupler and the proportion of the length differences can be controlled accurately because light interference effect can be sheered away in fabricating.

与通常的3阶级联Mach-Zehnder干涉仪相比,耦合器数目减少,在实际制作时可以对耦合器的分光比和干涉臂臂长差进行准确监测和控制。

By using spectrophotography,the deposit of phosphorus ion and fenvalerate in Bellaamya dispiralis Heude had been studied.

为了分析双旋环棱螺对富磷污染水体生物积累作用的利弊和潜在影响,采用分光光度法,研究了无机磷、杀灭菊酯2种物质在双旋环棱螺内脏团的沉积作用。

Naphthylamide heavy nitrogen spectrophotography was adopted to detect the content of nitric oxide in the serum and half quantitative reverse transcription polymerase chain reaction was used to detect eNOS gene expression in artery vessels.

采用萘胺重氮分光光度法测定血清NO含量,采用半定量RT PCR方法检测各组动物动脉壁匀浆中eNOS基因的表达,分析造模及各药物组血清NO含量及eNOS基因表达的变化。

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