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• 2018-11-29 17:30發(fā)布了問答

  原子吸收光譜的基本原理

  　

  332人看過

• 2018-11-24 06:22發(fā)布了問答

  我們的產(chǎn)品比較大，想買一臺移動式光譜儀，誰家的光譜更準些？

  　

  344人看過

• 2018-11-17 18:16發(fā)布了問答

  火焰光度檢測器的原理

  　

  584人看過

• 2018-11-17 00:18發(fā)布了問答

  拉曼光譜法與紅外光譜法相比較，有哪些異同點？

  　

  448人看過

• 2018-04-17 17:40發(fā)布了問答

  求助：請問紅外光譜上可以看到CO2的峰嗎

  　

  772人看過

• 2017-11-24 13:47發(fā)布了問答

  測紅外時為什么要求將固體試樣研磨至顆粒粒度小于2μm左右?

  　

  539人看過

• 2017-05-20 03:20發(fā)布了問答

  原子化的方法有哪兩種？各能測到什么數(shù)量級

  　

  1037人看過

• 2016-11-02 07:30發(fā)布了問答

  翡翠原石的鑒別方法

  翡翠原石的鑒別方法

  669人看過

• 2014-07-03 11:41發(fā)布了問答

  3D物位掃描儀市場前景怎么樣？

  　

  420人看過

• 2013-09-24 03:05發(fā)布了問答

  原子發(fā)射光譜儀的工作原理是什么？

  　

  676人看過

• 2013-03-12 05:07發(fā)布了問答

  紅外光譜儀主要使用范圍有哪些

  　

  357人看過

• 2012-11-23 08:52發(fā)布了問答

  火焰原子吸收光譜法測定鈣時為什么要加入鑭試液

  　

  946人看過

• 2012-09-20 12:40發(fā)布了問答

  WFX-110原子吸收分光光度計火焰頭高度怎么設置

  　

  445人看過

• 2010-11-10 02:19發(fā)布了問答

  原子吸收光譜儀PE的好還是熱電的好

  　

  349人看過

• 2010-05-25 11:19發(fā)布了問答

  紅外光譜圖的聚類分析和相似度比較

  我是一個大三學生，由于學年論文有關紅外光譜，方法是測定物質(zhì)之間的差異，所以使用了逐一測定，然后分析譜圖，進行聚類分析和相似度比較，我想知道有什么軟件可以完成我的任務，我使用的測定軟件是irsolution，裝置是紅外顯微鏡，由于軟件irsolution1.4是英文... 我是一個大三學生，由于學年論文有關紅外光譜，方法是測定物質(zhì)之間的差異，所以使用了逐一測定，然后分析譜圖，進行聚類分析和相似度比較，我想知道有什么軟件可以完成我的任務，我使用的測定軟件是irsolution，裝置是紅外顯微鏡，由于軟件irsolution1.4是英文版的，也不好使用，誰能給個中文補丁也謝謝了。 展開

  539人看過

• 2008-11-08 00:52發(fā)布了問答

  哪位高手能幫我翻譯一下 謝謝了

  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. 展開

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