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• 2018-11-29 17:30发布了问答

  原子吸收光谱的基本原理

  　

  251人看过

• 2018-11-24 06:22发布了问答

  我们的产品比较大，想买一台移动式光谱仪，谁家的光谱更准些？

  　

  301人看过

• 2018-11-17 18:16发布了问答

  火焰光度检测器的原理

  　

  462人看过

• 2018-11-17 00:18发布了问答

  拉曼光谱法与红外光谱法相比较，有哪些异同点？

  　

  375人看过

• 2018-04-17 17:40发布了问答

  求助：请问红外光谱上可以看到CO2的峰吗

  　

  662人看过

• 2017-11-24 13:47发布了问答

  测红外时为什么要求将固体试样研磨至颗粒粒度小于2μm左右?

  　

  458人看过

• 2017-05-20 03:20发布了问答

  原子化的方法有哪两种？各能测到什么数量级

  　

  942人看过

• 2016-11-02 07:30发布了问答

  翡翠原石的鉴别方法

  翡翠原石的鉴别方法

  574人看过

• 2014-07-03 11:41发布了问答

  3D物位扫描仪市场前景怎么样？

  　

  314人看过

• 2013-09-24 03:05发布了问答

  原子发射光谱仪的工作原理是什么？

  　

  540人看过

• 2013-03-12 05:07发布了问答

  红外光谱仪主要使用范围有哪些

  　

  288人看过

• 2012-11-23 08:52发布了问答

  火焰原子吸收光谱法测定钙时为什么要加入镧试液

  　

  844人看过

• 2012-09-20 12:40发布了问答

  WFX-110原子吸收分光光度计火焰头高度怎么设置

  　

  373人看过

• 2010-11-10 02:19发布了问答

  原子吸收光谱仪PE的好还是热电的好

  　

  261人看过

• 2010-05-25 11:19发布了问答

  红外光谱图的聚类分析和相似度比较

  我是一个大三学生，由于学年论文有关红外光谱，方法是测定物质之间的差异，所以使用了逐一测定，然后分析谱图，进行聚类分析和相似度比较，我想知道有什么软件可以完成我的任务，我使用的测定软件是irsolution，装置是红外显微镜，由于软件irsolution1.4是英文... 我是一个大三学生，由于学年论文有关红外光谱，方法是测定物质之间的差异，所以使用了逐一测定，然后分析谱图，进行聚类分析和相似度比较，我想知道有什么软件可以完成我的任务，我使用的测定软件是irsolution，装置是红外显微镜，由于软件irsolution1.4是英文版的，也不好使用，谁能给个中文补丁也谢谢了。 展开

  476人看过

• 2008-11-08 00:52发布了问答

  哪位高手能帮我翻译一下 谢谢了

  3.3. Microbial mapping The intensity of resonance Raman spectra of Cyt c allows for integration times below one second. Microbial mapping of an area of 50×50 μm2 with a resolution of 500 nm/pixel (10，000 single spectra) can be perform... 3.3. Microbial mapping The intensity of resonance Raman spectra of Cyt c allows for integration times below one second. Microbial mapping of an area of 50×50 μm2 with a resolution of 500 nm/pixel (10，000 single spectra) can be performed in less than 3 h. A further reduction of the measuring duration by a factor of 10 can be achieved by utilisation of an EMCCD camera (Coates et al.， 2004). Microbial mapping was done on granules from two different sequencing batch reactors (SBR) (Gaul et al.， 2006). The SBRs are used to analyse control parameters for the anaerobic ammonium oxidation. Fig. 7 shows two different microbial colonies in the same granulum. A graphical analysis of the spectroscopic data at 750 cm-1 (dominant resonant Raman band of Cyt c) and 2900 cm-1 (CH stretching mode) differentiated the two colonies. One colony shows stronger Raman signals at 750 cm-1 (blue frame). Whereas the other microorganisms have more amount of methyl or methylene groups (yellow frame). After the graphical analysis above， an average spectrum was constructed for each colony. The resulting averaged spectra were transferred to our Raman database of wastewater bacteria created by OPUS. The software recognized the microorganisms Fig. 5. Time series of N. eutropha Nm 57 which is captured by optical tweezers. Time difference between spectra: 1 s; Laser power: 9 mW. The bleaching effect due to photo-dissociation caused by laser radiation is easy to see. Fig. 6. The spectral heterogeneity of hierarchical clusteringis strongly dependent to the integration time. Bacteria from the same strain are only groupedtogether if the exposure time was the same. 246 R. P?tzold et al. / Journal of Microbiological Methods 72 (2008) 241–248 in the left colony as anammox bacteria， those in the upper right corner as Nitrosomonas. 展开

  365人看过

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