the distribution of camptothecin and its ring opened form was studied by first derivative ratio spectrum of uv vis absorption and fluorescence spectrometry in different ph aqueous buffer solutions.

1、

on line monitoring in photocatalytic degradation process of organic compound 4 chlorophenol ( 4 cp) was carried out by using cyclic voltammetry and uv vis spectrometry.

采用循环伏安法和紫外光谱法对有机物的光催化降解进行机理研究和在线监测。

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2、

summary uv vis spectroscopy and molecular size distribution of water soluble organic carbon ( wsoc) of 45 soil samples collected from the eastern part of china were determined.

测定了中国中东部地区17种土类45个样点近表层10cm土样中水溶性有机物的紫外光谱和分子量分布特征，同时测定部分样品富里酸的相应特征。

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3、

uv vis spectra show that the uv absorption of the superfine anatase particles are better than that of brookite and rutile.

UV-Vis测量表明，锐钛矿型TiO2微粒的紫外光吸收性能最好。

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4、

in order to provide basis for identifying gems, the absorption spectra of natural and optimally treated gems were obtained with uv vis spectrophotometer.

为了给宝石鉴定提供依据，用紫外-可见分光光度计测定了天然宝石和经优化处理宝石的紫外可见吸收光谱，并进行了分析对比。

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5、

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。

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6、

the relationship between the stop band of colloidal crystals and the diameters of polymer microspheres were investigated by using uv vis spectra.

利用紫外-可见光谱研究了胶体晶的光禁带峰位与组成其微球粒径之间的关系。

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7、

on the basis of correct uv vis spectra, the position and strength of the two photon absorption cross sections can be predicted.

在正确的UV-Vis光谱基础上，预测了双光子吸收峰的位置。

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8、

the existence of dinuclear structure on the sio 2 surface was characterized by ir and uv vis analysis and titration method.

用络合滴定、红外及UV-vis光谱分析法，表征了载体表面的双核桥联结构。

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9、

results: both methods had high measurement precision, but the measurement result in uv vis spectrophotometry was about 3 times that in hplc.

结果：两种方法都有较好的精密度，但测定的结果有较大差异，紫外/可见分光光度法测得的结果比HPLC法高。

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10、

the uv vis, ir, nmr, ms, mp determination and elemental analysis were used for characterization.

产物用IR，UV-Vis，MS，NMR，熔点测定和元素分析等方法表征。

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11、

the relationship between the transmittance and leaching effect of the glasses was discussed by measuring uv vis nir spectrum.

用光谱仪测定多孔玻璃的紫外可见近红外光谱，对光谱透过率与浸析效果之间的关系作了定性分析。

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12、

in this paper, basic requirements for grating in ultraviolet visible ( uv vis) spectrophotometer are discussed in detail.

本文详细讨论了紫外可见分光光度计对光栅的基本要求；

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13、

by uv vis analysis, unsaturated groups were destroyed by ozone which converted complicated organic compounds to low molecular compounds.

经过UV-vis分析发现，由于臭氧的氧化作用，使废水中不饱和基团被破坏，复杂有机物转化为小分子化合物。

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14、

the complexes were characterized by elemental analysis, ir, uv vis reflectance spectra and electronic conductance.

使用元素分析、IR、UV－Vis光谱和电导测定方法对该配合物进行了表征。

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15、

on the uv vis spectra of polyaniline doped with camphor sulfonic acid in organic solvent

聚苯胺在有机溶剂中掺杂樟脑磺酸的UV-Vis光谱

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16、

the mechanism of its visible light activity was investigated by uv vis absorption spectra and x ray photoemission.

通过UV-Vis吸收光谱、X射线光电子能谱（XPS）等方法对其可见光活性的机理进行探索。

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17、

research on uv vis spectra of titanium silicalite

钛硅沸石UV-Vis谱的研究

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18、

photoluminescence and uv vis absorption spectra characteristics of metal complexes of 8 hydroxyquinoline

8-羟基喹啉金属螯合物的吸收光谱和发射光谱八羟基喹啉金属配合物的发光特性的研究

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19、

study of polysoap solutions and their uv vis probe spectroscopy

聚皂溶液及其紫外-可见探针光谱研究

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20、

hcsa possesses diverse uv vis spectra in various organic solvent.

HCSA在不同的有机溶剂中有不同的紫外-可见光谱。

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