fluorescence excitation-emission matrix 荧光激发-发射矩阵(fluorescence excitation-emission matrix,EEM)是一种用于分析荧光数据的方法。它通过对荧光激发光谱和发射光谱的综合分析,获取物质的荧光信息,从而表征物质的性质和组成。 荧光激发-发射矩阵可以用于分析各种样品中的溶解性有机质(DOM),如海洋、水生和土壤等。在...
To test the simulation, emission, excitation, and synchronous spectra were obtained for anthracene in n-hexane. Excellent agreement is obtained reproducing and finding the origin of the experimental SF bands for values of Δλ between 2 and 100. The excitation, emission, and synchronous (Δλ= ...
Fluorescence excitation and emission spectra of 1,5‐dihydroxyanthraquinone‐d2 in n‐hexane at 10 K The fluorescence excitation, between 430 and 505 nm, and emission, between 505 and 725 nm, spectra in n‐hexane of 1,5‐dihydroxyanthraquinone‐d 0 Giulietta,Smulevich,Paolo,... - 《Journal...
Fluorescence, emission of electromagnetic radiation, usually visible light, caused by excitation of atoms in a material, which then reemit almost immediately (within about 10−8 seconds). The initial excitation is usually caused by absorption of energy
Excitation-emissionmatrix(EEM)fluorescencespec- troscopyhasbeenwidelyusedtocharacterizedissolved organicmatter(DOM)inwaterandsoil.However,interpreting the>10,000wavelength-dependentfluorescenceintensity datapointsrepresentedinEEMshasposedasignificant challenge.Fluorescenceregionalintegration,aquantitative techniquethatintegrate...
Excitation emission matrix (EEM) and cavity ring-down (CRD) spectral signatures have been used to detect and quantitatively assess contamination of jet fuels with aero-turbine lubricating oil. The EEM spectrometer has been fiber-coupled to permitin situmeasurements of jet turbine oil contamination of...
5) fluorescence excitation-emission matrix spectra 荧光激发-发射矩阵光谱 1. By measuring and analyzing the fluorescence excitation-emission matrix spectra (EEMS) of dissolved organic matter and relative environmental factors in four typical environments, fluorescence characteristics of dissolved organic ...
Fluorescence regional integration (FRI), a quantitative technique that integrates volumes beneath different excitation–emission regions in EEM spectra, can be used to quantitatively analyze EEM spectra and to determine the configuration and heterogeneity of DOM [12], [13], [14]. However, data from...
摘要: Investigates fluorescence excitation-emission matrix spectrophotometry to determine fluorescence signature of sewage treatment works discharge. Preservation of signature in STW outfalls even after dilution; Evidence of signatures with upstream impacts; Suggestion for higher fluorescence in untreated sewage....
Figure 1 shows the respective excitation and emission spectra. As reported before (Tsien, 1998), we found two excitation peaks at around 395 nm and 480 nm for GFP corresponding to the neutral and deprotonated (anionic) state of the fluorochrome, respectively (Chattoraj et al., 1996; Chudak...