查询词典 absorption spectrum

The traditional methods used to confect the standard solution in the elementary determining of the glass samples containing sodium and calcium by atomic absorption spectrum are very fussy .

传统原子吸收法测定钠钙玻璃中各元素的标准溶液的配制方法既繁琐且不容易消除干扰。

According to the characteristic that the isoflavonoids of Derris elliptica Benth have a distinctive absorption spectrum within the ultroviolet wave length range (210￣ 345 nm, 290￣305 nm), a new method for determining the total isoflavonoids in Derris elliptica Benth by Ultroviolet Spectrometry has been put forward.

根据鱼藤中异黄酮类化合物在紫外光210～245nm及290～305nm处具有吸收峰这一特性，提出了用紫外分光法测定鱼藤中异黄酮类总含量的方法。在300nm波长处，浓度低于6×2.618×10－3／mol·L－1时，测定了标准系列的吸光值，结果表明吸光值与浓度近乎直线相关，相关系数为0.9977；标准系列吸光值准确性高；加样回收率达99％以上；测定样品时，重现性好

In this paper,the contents of Fe3+ and Fe2+ and the diathermancy of Eglass are measured,the absorption spectrum of both states of iron are analysised.

定了无碱玻璃中Fe2＋和Fe3＋的含量以及玻璃的透热性能，并对玻璃中铁离子和亚铁离子的吸收光谱进行了分析。

The properties and structures have been investigated as well by X-ray diffraction, infrared absorption spectrum and differential thermal analysis. The solvent dilatability and gelation ability, viscidity and organic content have been tested.

以十六烷基季铵盐为有机化改性剂，用微波辐射加热的方法制备出了性能优良的有机膨润土，利用XRD、FT-IR、DTA等方法分别对合成的钠基膨润土和有机膨润土的结构进行了研究和表征；并初步测试了有机膨润土的溶胀性、凝胶性能、粘度和有机物含量。

The results showed that the acid chrome blue K can adsorb on the surface of TiO2 and open up the absorption spectrum of TiO2, and making it have a larger adsorption in visible light extent, and occur obvious Einstein shift.

实验结果表明，酸性铬蓝K可吸附在TiO2的表面，TiO2敏化后拓宽了的吸收光谱，在可见光范围有较大的吸收，并且发生了明显的红移现象。

Absorption spectrum of this complex is measured in 420nm wavelength,so titanium content in ferrotitanium will be determined.

将经典的铝还原—硫酸高铁滴定法，改为在硫酸—盐酸介质中，二安替比林甲烷与钛生成黄色可溶性络合物，在波长420nm处测量吸光度，借此进行测定钛铁中钛量。

The reaction mechanism of HNO2 and C6H5Br in aquepus solution with the presence of O2 or absence of O2 is studied by laser flash photolysis transient absorption spectrum technique under irradiation at 355nm.The intermediate and final products have been analyzed after the irradiation of laser.The photolysis mechanism of C6H5Br…OH has been discussed.

另外，采用激光闪光光解瞬态吸收光谱技术，从微观反应机理角度分析了无氧或氧气饱和条件下HNO2与C6H5Br的光化学反应，以及溶液经激光照射后产物的生成情况，并着重探讨了反应中间产物C6H5Br…OH的微观反应机理，得到了一些重要的动力学参数。

The absorption spectrum of Pr3+and Pr3++Yb3+, the fluoresce wavelength of Pr3+ in ZBLAN glass have been measured.

测量了ZBLAN玻璃中Pr3+，Pr3++Yb3+的吸收光谱和Pr3+的荧光发射波长。

A series of reactions may occur when the nitrous acid and naphthalene inside the atmospheric aqueous phases is exposed to sunlight. This article devotes to investigating from a microscopic angle the reaction mechanism and kinetics of this system using laser flash photolysis technique with an excitation wavelength of 355nm. The main research results are listed as below:(1) The OH quantum yield FOH for the photolysis of HNO2 in the aqueous phase was determined to be 0.234 and the absorption spectrum of OH radical was recorded as well.

本文以激光闪光光解为主要研究手段，考察了大气液滴中的HNO2及HNO2+萘体系经355nm紫外光照射后发生的微观反应及其机理，结果表明：(1)液滴中的HNO2经355nm光照产生OH自由基的量子产额为FOH=0.234；以瞬态技术记录了水相中的OH自由基的吸收光谱。

The influence of solvent and medium on the absorption spectrum and the equilibrium between azo tautomerism and hydrazone tautomerism was discussed.

讨论了溶剂和介质对各个染料紫外可见吸收光谱及偶氮式异构体与腙式异构体互变平衡的影响。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。