一种数字微镜控制的近红外阿达玛变换光谱仪

使用高精度的数字微镜（DMD）阵列代替传统的阿达玛编码模板,使得阿达玛光学编码过程中没有任何机械运动部件,从而大大提高了光谱仪的抗震性和稳定性．利用FPGA和MSP430单片机控制DMD产生阿达玛变换编码模板,并按照特定的时序完成模板的移动、模拟信号／数字信号（A／D）采样脉冲产生与筛选等工作．利用以该模板为核心部件的阿达玛变换光谱仪进行了性能测试实验,结果表明该仪器性能优良,稳定可靠．     

不同掺杂态聚苯胺的合成及其红外光谱的研究

以十二烷基苯磺酸(DBSA)和樟脑磺酸(CSA)作为掺杂剂,采用乳液聚合法和研磨法,合成了DBSA掺杂聚苯胺、CSA和DBSA共掺杂聚苯胺,探讨了合成条件对掺杂聚苯胺导电性能的影响,并研究了掺杂聚苯胺的红外光谱。DBSA掺杂聚苯胺、CSA和DBSA共掺杂聚苯胺的电导率分别为0.274 S/cm和1.210 S/cm。在DBSA掺杂聚苯胺中再掺杂CSA,可提高聚苯胺的电导率。     

聚醚型表面活性剂结构的波谱表征

用柱色谱法从不同来源聚醚型表面活性剂工业品中,分离精制出分布较单一的3类聚醚型表面活性剂模型化合物,用红外光谱法定性,用¹HNMR确定其结构和EO(PO)分布。以所得模型化合物为基础,提出聚醚型表面活性剂EO(PO)分布及烷基链长的计算方法.     

In situ time-resolved FTIRS study of adsorption and oxidation of ethylene glycol on Pt（100） electrode

Adsorption and oxidation of ethylene glycol （EG） on Pt（100） electrode were studied by in situ timeresolved FTIRS （TRFTIRS）. The TRFTIR spectra recorded at 0.10 V illustrate that an IR band appears near 2050 cm^-1 at t 〉 5 s, corresponding to linearly bonded CO formed in dissociative adsorption of EG. The TRFTIR results have confirmed also that CO species are distributed uniformly on Pt（100） surface. Another band appears near 2342 cm^-1 at t 〉 70 s, associating with IR absorption of CO2 produced in the direct oxidation of EG. With the increase of electrode potential, the direct oxidation of EG becomes gradually the main reaction： When the potential is above 0.40 V, the oxidation of EG occurs mainly via the reactive intermediates, i.e. species containing -COOH determined by in situ TRFTIRS.     

望远镜光轴与分光计主轴垂直的调节技巧

在分光计的调整实验中,最关键、最困难的步骤就是如何调整望远镜的光轴与仪器主轴垂直。若两个绿十字像相对于上十字叉丝水平线一上一下,称为异侧;若两个绿十字像都在上十字叉丝水平线的下侧或者上侧,称为同侧。针对以上两种情况,文章介绍了一种简单有效的方法：同侧异侧循环调节法,并给出了相应调整方法的完整流程图。用该方法可以快速调节望远镜光轴与仪器主轴垂直。教学实践表明：该方法便于学生记忆,大大优于传统方法的调节速度。     

分光计实验仪器的改进

分光计是一种精确测量平行光偏振角度的光学仪器,所以正确的调整分光计对减少测量误差、提高测量的准确度是十分重要的。通过对分光计的简单改进,能够解决分光计调节困难的问题,同时缩短了实验时间、提高了实验效率,准确度也有所提高。     

Action of the saproxylic scarab larva Cetonia aurataeformis (Coleoptera: Scarabaeoidea: Cetoniidae) on woody substrates

The saproxylic beetle Cetonia aurataeformis Curti (Scarabaeoidea: Cetoniidae) is a common Iberian species, whose larvae develop in tree cavities feeding on wood and litter. The aim of this paper is to analyse how the larvae of this cetonid modify the woody substrate by feeding and what the ecological implications on their microhabitat could be. Thermal analysis and infrared spectroscopy have been used to study the changes suffered by different substrates, litter and wood of Betula alba and Quercus pyrenaica, after digestion by the larvae. Results show that larvae of C. aurataeformis are able to digest polysaccharides and lignin producing a residue richer in nutrients than the original substrate and with an organic structure that contains a fraction of lignin that is easier to decompose. The main conclusion is that the action of cetonid larvae on woody substrates could facilitate their use by other saproxylic organisms in natural ecosystems.     

分光计的简单调节方法

介绍了分光计的结构、光学特性和测量方法。针对实验教学中，测量人员和学生较难掌握调节分光计的实际现状，提出了使望远镜光轴垂直于分光计中心转轴，将载物平台、望远镜分开调节的方法。提高了实验操作的效率，增强了分光计测量的适用性，便于实验教学人员和学生开展测量操作。     

Theoretical and Experimental Studies on the Isomeric Vibrations of （3,4-difluoro） Phenylhydroquinone

A formula was proved for computing the zeroth-order general Randic index of a hexagonal system to explore the correlation between the zeroth-order general Randic index and the π-electronic energy of a ...     

聚乙烯接枝马来酸盐离聚体的红外光谱──制备方法和成膜条件的影响

通过２种不同的方法制备了聚乙烯接枝马来酸盐离聚体，并比较两者的ＩＲ谱，得：溶液接枝法的羧酸盐的νａｓ峰出现在１５８０～１６００ｃｍ－１之间，熔融接枝法的νａｓ峰则出现在１５４６ｃｍ－１处；对于同一种接枝法制备所得的产物，不同的成膜条件ＩＲ谱也不同，溶液铸膜的ＩＲ谱较复杂．以上谱图的差别说明了不同的制备方法所得产物的离子聚集状态有区别．