查询词典 vis

UV-Vis absorption and photoluminescence spectra of the product were studied.

并研究了产物的紫外可见吸收和荧光发射等光学性质。

The photosensitivity of PI-CI was studied by using UV-Vis and FTIR.

用紫外-可见光谱等方法研究了PI-CI的光交联反应。

The molecular structure of the metal phthalocyanine derivatives was characterized by FT-IR, UV/Vis and element analysis.

该电极对过氧化氢的电流响应与其浓度在1×10〓～1×10〓mol/L浓度范围呈现线性关系，检测下限为8×10〓mol/L。

In this paper the thymus DNA of calf and the pBs plasmid are the main objects of our studies in ultraweak luminescence. By means of PIAS(Photon-counting image acquisition), ultraweak luminescence detector and Lambda Bio 40 of UV/VIS spectrophotometer, we studied the UL of DNA induced by the three oxygen free radicals: singlet oxygen Oa, hydroxy radical and superoxide anion(O2 ). We found that the OH can greatly increase the UL intensity of DNA.

本论文以小牛胸腺DNA和质粒pBs为实验材料，利用光子图像探测系统(Photon-counting image acquistion，PIAS)、微弱发光测量仪和UV／VIS分光光度计和生物统计学的成组比较法原理对单线态氧(~1O_2)、羟自由基、超氧阴离子(O_2~-)三种氧自由基诱导DNA超弱发光的变化过程进行了研究，结果发现这三种氧自由基中·OH能诱导DNA的超弱发光发生显著的增强变化，而其他两种氧自由基对DNA的超弱发光并无显著诱导作用。

In this paper, UV-vis spectrum, IR spectrum, viscosity measurement and ~1H NMR spectra of polymer were provided in order to show the characteristic of copolymer between pinene epoxides and maleic anhydride.

本文还使用紫外光谱、红外光谱、粘度测定、核磁共振等方法对共聚产物进行了分析，研究了环氧蒎烷与顺丁烯二酸酐共聚合产物的特性。

Company set up a sound quality testing agencies, the Department currently has a chemical analysis of the quality of room, instrumental analysis room, laboratory, and is equipped with high-performance liquid chromatograph, gas chromatograph, UV-Vis spectrophotometer, Polarimeter and other advanced detection apparatus, with professional quality control staff of more than 20, which has a staff of a college education accounted for 90%.

公司建立健全质量检验机构，目前公司品质部设有化学分析室，仪器分析室、试验室，并配有高效液相色谱仪、气相色谱仪、紫外可见分光光度计、旋光仪等先进的检测仪器，拥有专业质检人员20多名，其中具有大专以上学历的人员占90%以上。

The results indicated that the composite films exhibited much improved gas sensing performance.The phthalocyanine and its a-Fe2O3 embedded nano-particulate LB filmswere prepared by Langmuir-Blodgett technique. The films were characterized by AFM, UV-Vis and FT-IR spectra. The results indicated that the embedded LB films were composed of a-Fe2O3 nanoparticles and isopropoxyphthalocyanine molecules. The gas sensitivity of such prepared composite LB films was greatly improved. The film could detect 5ppm of propyl alcohol at room temperature. The composite films could be considered as gas-sensors for alcohols.

利用LB技术制各了异丙氧基酞菁铜LB膜和酞菁铜包埋球形α-Fe_2O_3纳米粒子的杂化LB薄膜，对其AFM、紫外和红外光谱的研究表明，利用LB技术可以实现酞菁与α-Fe_2O_3纳米粒子的有序组装，而且杂化薄膜对醇类气体的灵敏度有较大幅度提高，如对浓度为5ppm正丙醇的灵敏度为3.85，因此，杂化薄膜可以作为室温下醇类气体传感器进行开发研究。

ObjectiveTo determine the total flavone content in Prunella vulgaris L. by VIS and UV Spectrophotometry.

目的研究可见光及紫外光分光光度法测定夏枯草中总黄酮含量的方法。

The extract of pyrethrum was extracted by soxhlet extraction from Chrysanthemum Cinerarioefolium Vis..

方法］用索氏提取法从白花除虫菊株系Chrysanthemum Cinerariaefolium Vis。

It is known that more Fe makes the pyromorphite show yellow color through UV/Vis spectra.

UV/Vis进一步说明在可见光区的吸收不同是使二者颜色差异的主要原因，Fe离子含量较大使磷氯铅矿呈现黄色。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？