分光光度计

Based on studies on the characteristics of ultraviolet-visible absorption spectra, ESR and ~(13)C NMR spectra, the three dimensional fluorescence spectra of natural and treated ambers with fluorescence are studied by using the three dimensional fluorescence spectrophotometer.

基于紫外可见吸收光谱、ESR和13C NMR谱的研究基础，以三维荧光分光光度计为主要测试分析方法，对具有荧光性质的天然与处理琥珀的三维荧光光谱进行了剖析。

Methods: The sample, after the nitric acid and the perchloric acid digestion was induced in the flame atom absorption spectrophotometer with standard series comparison quota.

样品用硝酸和高氯酸消化后，导入火焰原子吸收分光光度计中，与标准系列比较定量。

Using PAP and ABC methods and microspectrophotometry, the regularities of developmental changes and characteristics of the distribution of leucine-enkephalin-like immunoreactive components in the spinal cord of the human foetuses (52 cases) and neonates (2 cases) have been examined.

用PAP和ABC法，观察了亮氨酸-脑啡肽样免疫反应成分在52例胎龄为8-39周的人胎儿和2例新生儿脊髓的分布状况，并通过显微分光光度计对分布密度进行了量的变化的分析。

IAA oxidase activity during the fruit bud differentiation of "Ping Guo Li" in leaves measured by UV-Vis method was studied.

本文介绍了用紫外分光光度计测定苹果梨花芽分化各时期叶片中IAA氧化酶活性的方法。

The optimum conditions were as follows: 1 Fe3+/Fe2+ was 1.70-1.75;2 the precipitant,25% ammonia water was used 20%-30%,under 35℃,pH10-11 and with a stirrer speed of 3000 r/min for 1 h;3 in the first package process with gelatin and agar,the optimum amounts was 0.050-0.060g/150mL at the temperature of 55-60℃ and pH of 9-11;In the f...

最佳工艺条件为：(1)Fe3+/Fe2+之比在1.70~1.75；(2)沉淀剂25%NH3.H2O过量20%~30%，温度35℃，pH值11，反应时间为1h；(3)琼脂的最佳用量为0.050~0.060g/150mL；包覆的最佳温度为50~60℃，pH值为9~11；聚乙二醇作为第二次包裹剂时，最佳温度为55℃，反应时间是1h，pH值为4~5；并用透射电镜、分光光度计、古埃磁天平等进行了初步表征。

The dissertation deals with the gemology and relative spectroscopy of these rubies by using the conventional gemological methods and the modern instruments of EMPA, scanning electron microscope, electron paramagnetic resonance, infrared Fourier transform spectroscope and laser Raman spectrometer.

本文采用常规的宝石学研究方法以及电子探针、扫描电子显微镜、电子顺磁共振、傅立叶变换红外光谱仪、拉曼光谱仪、紫外可见光分光光度计等现代测试仪器，对元江红宝石的矿物宝石学特征进行了系统的研究，并结合晶体场理论分析元江红宝石的致色机理。

The influence of doped cerium amount and heat-treat ment temperature on the photocatalytic degradation efficiency of TiO2 film for oleic acid was investigated by high pressure liquid chromatography, ultraviolet -visible spectrophotometer and scanning electron microscope.

利用高压液相色谱、紫外-可见光分光光度计、扫描电镜和能谱仪手段对掺杂铈的TiO2薄膜进行了表征，考察了掺杂铈对油酸光催化降解效率及TiO2薄膜表面晶粒分布的影响，并对薄膜的化学成分进行了定性和定量分析。

The analytical method of spectrophotometric determination of trace impurities such as calcium + magnesium, iron, sodium chloride, silicon dioxide in deionized water is described in details, with which we have detected the deionized water and has proved that it can meet the need of industrial processing because it is simple,fast and durable.

详细描述了用分光光度计测定去离子水中的微量Ca2++Mg2+，Fe3+，NaCl和SiO2等杂质的分析方法，利用该方法对去离子水进行测定，证明该检测方法简便、快速、实用，能够满足生产需要；通过大量的实验数据，总结出规律，降低了分析频率，减少了生产成本。

Common spectrofluoromenter was used to measure the resonance light-scattering intensity of the mixture with same excitation and emission wavelength.

在入射光波长和荧光波长相同条件下，用荧光分光光度计测定混合液的共振光散射强度。

The scattering spectra of this system were measured using an ordinary spectrofluorophotometer. Influence of experimental conditions, such as pH, ionic strength, and concentration of CAS, on the intensity of light-scattering was studied. Effects of surfactants (cationic, anionic, and nonionic), amino acids, and metal ions on the combination of CAS with protein were also investigated.

用普通的荧光分光光度计测量了这一体系的散射光谱，研究了pH，离子强度和试剂浓度等实验条件对散射光强的影响，考察了阳离子、阴离子和非离子表面活性剂以及氨基酸和常见金属离子对反应体系的作用。

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。