In this paper, we report amethod for rapid water quality evaluation based onlaser-excited dissolved organic matter (DOM) fluorescence and water Raman peak. A formula, which results in the score from 0 to 100, was proposed to evaluate water quality. We first employed this method to evaluate ...
We further confirmed whether the apatite grains found in the Chang’E-5 returned samples contain OH. The apatite grains in the polished sections were then analyzed by Raman spectroscopy (“Methods”). Most of the apatite grains have a Raman peak that occurs near 959.3–961.7 cm−1(Fig...
Table 4. Maximal fluorescence intensities Fmax (i.e., F1-F4, in Raman units (R.U), of the PARAFAC components C1-C4) obtained in the water extracts of soils from the two climatic regions and different land-uses. FC - field crops, OR - orchard, NC - non-cultivated. Values in the pa...
The obtained Raman spectrum is shown in Fig. 5(a) demonstrating excellent agreement between the measured Raman peaks and the theoretical peak positions shown as vertical blue lines33. It should be noted that this chip is top-sealed using glass (Borofloat 33), which causes the fluorescence ...
We further confirmed whether the apatite grains found in the Chang’E-5 returned samples contain OH. The apatite grains in the polished sections were then analyzed by Raman spectroscopy (“Methods”). Most of the apatite grains have a Raman peak that occurs near 959.3–961.7 cm−1(Fig...
where I(ν) is the intensity in the Raman spectrum at a Raman shift on ν cm–1, c is the velocity of light, T is the absolute temperature, h is Planck’s constant, and k is Boltzmann’s constant. To measure relative changes in the amide III band intensity, the ratio of peak inte...
Hoge F, Swift RN (1982) Delineation of estuarine fronts in the German Bight using airborne laser-induced water Raman backscatter and fluorescence of water column constituents. Int J Remote Sens 3:475–495Hoge FG, Swift RN (1982) Delineation of estuarine fronts in the German Bight using ...
Moreover, with cytosine·6H22O, we also observed a slight increase of the overestimation of the relative intensity of the central peak, at ∼5.5 eV, an effect that may have been related to an intrinsic deficiency of the static cluster model that we were considering. In any case, as all...
Raman spectroscopy presents a kind of water-rich hydrate of E.(5.3 ± 0.1)H2O in both vodka and water–ethanol solutions [31]. The fluorescence spectrum has shown that the main cluster is (H2O)m(EtOH) in the low concentration range of 10–45%, which corresponds to the peak at 373 nm...
Ultrafast cooperative phenomena in coherently prepared media: from superfluorescence to coherent Raman scattering and applications. College Station, Texas: Texas A & M University; 2011. Search in Google Scholar [35] Thompson JV, Ballmann CW, Cai H, Yi Z, Rostovtsev YV, Sokolov AV, et al. ...