光度

Objective:To develop a Triton X-100 solubilization spectrophotometric method for the determination of furaldehyde in the air of workplace.

目的：研究曲拉通100增溶苯胺分光光度法测定作业场所空气中糠醛的方法。

Using the iron standard solution makes standard curve, and then through the standard addition method measures the absorbance of water samples, and finally through the calculation knows content of iron of water sample.

通过铁标准溶液作出标准曲线，再通过标准加入法来测出水样的吸光度，最后通过计算得出水样中铁的含量。

The suitable detection wavelength was selected through qualitative determination of wave spectrum. With 95% ethanol as the reference solution, the standard curve was drawed with a series of different concn. of standard solution of chlorogenic acid, and the Absorbance of extracting solution was determined and the chlorogenic acid content in filtrate was calculated.

波谱定性检验选择适宜的测定波长，以95%乙醇为参比溶液，用配制好的一系列不同浓度的绿原酸标准溶液绘制标准曲线，测定提取液的吸光度，计算滤液中绿原酸的含量。

An equation, formula( 3 ), and an analytic solution of it, formula, are derived Using formula( 5 ) and a data set obtained from etc., the luminosity function of nearby galaxies is calculated; and A comparison of our result with and[ 8 ] is made.

得到了一个方程，式(3)；和这个方程的一个分析解，式(5)。应用公式(5)和由[11]等得来的一组资料，计算出附近星系的光度函数。

Properties: colorless needle-like crystals, melting point 105 ~ 106 ℃, optical rotation +51 °(c = 0.978, chloroform), other reports shows that by ethanol recrystallization the melting point 104 ~ 105 ℃, methanol re - the formation of solvate crystal melting point 84 ℃.it is Soluble in acetone, chloroform, insoluble in ether, petroleum ether, insoluble in water.

性质：无色针状结晶，熔点105～106℃，旋光度+51°（ c=0.978，氯仿），还有报道经乙醇重结晶熔点104～105℃，经甲醇重结晶形成的溶剂化物熔点84℃。易溶于丙酮、氯仿，难溶于乙醚、石油醚，不溶于水。

The content of aciclovir and the in vitro cumulative release were determined by UV spectrography.

通过紫外分光光度法进行阿昔洛韦含量和体外累积释放度测定。

The synthesized monomer and fluorescent polymers were characterized by the methods of nuclear magnetic resonance (~1H NMR), mass spectrography, fourier transform infrared spectroscopy, ultra-violet-visible spectra and differential scanning calorimetry, respectively.

采用核磁(~1H NMR)，质谱，红外光谱，差示扫描量热法，可见紫外分光光度仪和荧光光谱等方法对合成的荧光分子以及荧光聚合物的结构和性能做了表征，系统地研究了所合成的荧光聚合物的荧光性能。

The properties of a series of Pb-pheophytins were studied by HPLC and spectrometric assay.

5采用高效液相色谱法和动力学光度法分别研究了铅叶绿素的一些理化性质。

In particular many of the basic spectroscopic and spectrometric techniques were discovered in the early 20th century and refined in the late 20th century.

特别是许多基本分光光度技术和光谱技术在20世纪初期被人们发现，并在20世纪后期得以完善。

Objective: To find the metrical uncertainty of determination of manganese in drinking water by lame atomic absorption spectrometric method.

目的：给出火焰原子吸收分光光度法测定生活饮用水中锰的测量不确定度。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。