分光的

The effects of pH on the coloration and degradation of the root tuber anthocyanins of Panax notoginseng were studied in vitro by using spectrophotometry.The results indicated that both the visible light absorption spectra and the degradation rates of the anthocyanins were particularly pH-dependent.

用分光光度法在体外研究了pH对三七块根花色苷呈色和降解的效应，结果表明：该花色苷在可见光区的吸收光谱和降解速率均具独特的pH依赖性。

The TiO2 thin film on quartz glass is prepared by Liquid Phase Deposition method. The thicknesses of the films are determined by a spectrophotometer. The influence factors on the thicknesses such as ultrasonic vibration, times of sedimentation, sedimentation time and concentration of TiO2 colloid are investigated. A mathematical model of sedimentation is set up on the basis of gas adsorption theory.A photocatalytic continual tub reactor is set up.

本论文介绍了纳米TiO_2光催化降解甲醛的机理；用液相沉积法在石英基片上制备出纳米TiO_2薄膜，利用分光光度计间接测量TiO_2薄膜厚度，研究了超声波震荡、胶体浓度、沉积时间及沉积次数对薄膜厚度的影响；借鉴气体吸附理论，初步建立了制备TiO_2薄膜的沉积动力学模型。

The hydroxyl radical scavenging effects of safflower yellow, gardeniayellow, red radish color, purple sweet-potato red color and redcabbage color were detected in vitro with fluorescence spectrophotometry, andthe results make sure that all of the five pigments have some scavenging effects on thehydroxyl radical, though each pigment didn't have the same change trend.

用荧光分光光度法检测红花黄色素、栀子黄色素、红萝卜色素、紫甘薯色素、紫甘蓝色素等五种色素体外清除羟自由基的作用，结果证实SY、GY、RRC、PSPRC、RCC等五种色素对羟自由基都有一定的清除作用，每种色素的变化趋势不完全相同。

In addition, the redshift of optical absorption edge can be found and the light absorption was extended to the visible light region.

通过紫外-可见分光光度计的分析可以看出经过Y掺杂的TiO2薄膜吸收光区红移，对光的吸收明显向可见光扩展了，达到了实验目的。

The industrial magnesia and vitriol are used to produce magnesium sulfate in this paper, and the simulated wastewater is prepared using magnesium sulfate and kaolin. The flocculating effect of polyacrylamide, cationic polyacrylamide and anionic polyacrylamide is studied and compared through measurement of absorbency by spectrophotometer.

利用工业氧化镁和硫酸制备一定浓度的硫酸镁，结合高岭土配制氧化镁烟气脱硫的模拟废水，通过分光光度计吸光度测定了聚丙烯酰胺、阳离子型聚丙烯酰胺和阴离子型聚丙烯酰胺在模拟废水中的絮凝效果。

We have measured trace iron ion in engine oil by spectrophotometry accurately, with the absorption wavelength locates at 430nm and under the color system of Fe－Ammonium Sulfate－Sulfosalicylic acid－Ammonia. The results show that the relative standard deviation of this sample is 5.5%.

以Fe－硫酸铵－磺基水杨酸－氨水为显色体系，用分光光度计，在430nm的波长下，准确的测定了发动机机油中的微量铁。

These press scanning spectrophotometers are capable of producing a spectral data file that can be converted into a working profile.

扫描分光光度计的这些杂志报纸能够产生一笔光谱的数据能转换成工作描绘的文件。

The introduction of spectrophotometers equiped with micro cells and detectors capable of operating at a additional wavelengths has extend the scope of ultraviolet detection.

引入使用微池的分光光度计和可以在一个附加波长工作的检测器扩大了紫外检测的范围。

The color samples are measured using spectrophotometers under different illuminating/viewing geometries and visually estimated using the psychophysical method of magnitude estimation.

实验中使用了五种具有不同光泽度值的纸张，所有颜色样品在不同的照明与观察条件下分别采用分光光度计进行了测量，并基于量度估计的心理物理视觉实验方法进行了视觉评价。

In order to obtain 266nm UV laser, we use a type-I phase match BBO crystal(θ=47.6°) pumped by the green laser above and a focus lens. the spectrum of 266nm UV laser is measured by a UV spectrometer. But we can not obtain the output power for absence of available spectroscopes.

在高功率、高重复频率绿光激光器的基础上，采用I 类相位匹配(θ=47.6°)的BBO 倍频晶体，实验中测得了266nm 激光光谱，但由于缺乏有效的分光措施无法测得输出功率。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失