光度计的

Determination of the equilibrium constant of a coordinated compound.

四、铁离子与磺基水扬酸配合物的组成和标准稳定常数的测定，了解用比色法测定配合物的组成和配离子稳定常数的原理和方法，掌握分光光度计的使用及有关试验数据的处理方法。

By examining RLS spectral features of four systems including Al3+-DNA, azoviolet-cationic surfactants, fast red VR-proteins, ponceau G-proteins in this thesis, and proved that the instrumental conditions of spectrofluorometer have strong effect on the shape of resonance light scattering spectra.

本文在讨论Al~(3+)-DNA、镁试剂Ⅰ阳离子表面活性剂、固红VR-蛋白质、丽春红G-蛋白质四个体系的RLS光谱特征的基础上，证明荧光分光光度计的仪器条件和样品的分子吸收等因素会影响共振光散射光谱的形状，降低检测的灵敏度。

The results showed that the different mass concentration of HPAM's absorbance decreases slightly when the PH value of the buffer solution is 5.0, but its reproducibility is better;In order to make the absorbance become more stable, the reaction time was identified adding proper quantities of bromine water, sodium formate and starch-cadmium iodide reagent to the solution separately; the mass concentration curve of the HPAM was draw, by means of the straight degree of the curves, the coincidence degree of the straight line about the concentration of every sampling point and so on , it shows that the mixer has good mixed effect compared with the standard curve.

如下是一些主要问题：1）文章的行文格式。文章没有按照一般科技论文的表述方式，如1是引言，2是常用方法，其实这都应该是第一部分引言里应该介绍的，引言中应扼要介绍文章的研究背景、目的，意义，采用的主要方法等。还有3是实验装置，4是实验步骤，应该这些都是第二部分，试验材料与方法。2）文章的内容。文章应主要介绍本研究的具体内容，但是本文没有，如3 实验装置部分，这个721分光光度计的原理与论文内容联系不大，根本没必要介绍，标准曲线的研究应该放在最前面等。3）文章的表述不清。如HPAM是何物，文章一直没有介绍，什么曲线的直线度、浓度与直线的重合度、什么加入溴水后的时间，应该是反应时间，总之表述不清！ 4）文章的图表。图标绘制的很难看。如图2，应该纵坐标起始点从0.25开始，这样图形就会美观很多，图3又没有纵坐标标注，还多了一个纵坐标等。5）文章的结论。文章的结论中有些严格来说不是结论，而是实验中的现象与操作注意事项。

METHODS: We counted M. vaccae by UV spectrophotometry, wet weight measurement and plate count method, and built up two standard curves. One was drawn according to the results of UV spectrophotometry to plate count and the other was humid weight to plate count.

采用紫外分光光度计法、测湿重法、平板菌落计数法测定细菌数，建立紫外分光光度计法、测湿重法对平板菌落计数法的标准曲线。

A comprehensive survey of minerals in pollen of nectariferous plants was performed in this study.The contents of 14 mineral elements such as Fe, Zn, Cu, Mn and Se etc. in the pollen of 14 kinds of nectariferous plants: Cucumis melo L., Nelumbo nucifera Gaertn, Citrus sinensis Osbesk, Prunus armeniaca L., Rosa xanthina Lindi., etc, were detected for the first time by atomic absorption spectrophotometry, ultraviolet spectrophotometry and fluorescence spectrophotometry.

利用原子吸收分光光度计、紫外分光光度计和荧光分光光度计，测定了前人尚未测试的哈密瓜、莲、脐橙、杏及黄刺梅等14种蜜源植物花粉中Fe、Zn、Cu、Mn及Se等14种矿物质元素的含量。

Methods: Determination of the absorption band and fluorescence spectrum of aloe-emodin respectively in dimethyl sulphoxide, normal sodium and Human serum, albumin by spectrophotometer and fluorospectrophotometer.

用紫外可见光光度计和荧光光度计测定芦荟大黄素在二甲基亚砜，生理盐水，人血蛋白中的吸收光谱和荧光谱。

In addition, the redshift of optical absorption edge can be found and the light absorption was extended to the visible light region.

通过紫外-可见分光光度计的分析可以看出经过Y掺杂的TiO2薄膜吸收光区红移，对光的吸收明显向可见光扩展了，达到了实验目的。

These press scanning spectrophotometers are capable of producing a spectral data file that can be converted into a working profile.

扫描分光光度计的这些杂志报纸能够产生一笔光谱的数据能转换成工作描绘的文件。

It has the largest domestic-market for ultraviolet spectrophotometers and fluorescent spectrophotometers.

拥有国内最大的紫外分光光度计，荧光光度计市场。

Methods: The specifications of ultraviolet-visible spectrophotometers wereaffirmed to ensure that they can meet the requirements of the reference method, andthe reference measurement procedure was established. According to the guidelines ofmethodology validation in ICH and AOAC, we chose the selectivity, linearity,precision and accuracy to evaluate. The linearity and precision were validatedaccording to NCCLS EP6-P2 and EP5-A.

确认分光光度计的性能可满足血红蛋白参考方法的要求，确定参考测量程序；参照美国临床实验室标准化委员会文件EP6-P2和EP5-A评价该方法的线性和精密度，通过测定WHO国际标准物质验证我室血红蛋白参考方法测量结果的准确性。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。