Inside the box, a beaker containing pollutants and the Raman spectrometer were positioned, and the box remained sealed throughout the entire plasma degradation process. During the spectra collection, we set the laser power to 500 mW and the integration time to 5 s, and took the average ...
The present work provided knowledge of the compound, refining the information regarding the origins of the colour of ancient glass beads and the mechanisms of the compound interacting with matrix materials. The present work is a multidisciplinary study of geochemistry, archaeological science, mineralogy,...
Theν1-CO32−Raman line shifts to low wavenumbers with increasing ionic strength in pure or mixed carbonate sodium solutions (Square: 1 M Na2CO3and 0.5–2.0 M NaCl; Round: 0.741–1.556 M Na2CO3; Triangle: 1–8 M Na2CO3; Inverted triangle: 0.1 M Na2CO3and 0.713–7.68...
2, the characteristic emission lines of sodium and potassium have often been detected in the same spot of interest, thus suggesting the presence of jarosite phases whose elemental composition falls within the K–Na solid solution. In this case, peak shifting detected by Raman analysis confirmed ...
bSodium carbonate solution; n.d. indicates that the value is "not determined". with a pressure meter, which could lead to better accuracy and more reliable performance. It should also be noted that Frantz conducted the Raman spectroscopic study over a wide temperature range (from room ...
Owing to the formation of the T–Hg2+–T structure between mercury ions and thymines on adjacent DNA strands, DNA molecules took a vertical orientation, resulting in the change of Raman intensity ratio I(660 cm−1)/I(736 cm−1), which provided the basis for quantitative and selective ...
With the capturing of SO2 in HS, Karl Fischer reaction took place, resulting in a lighter colour of the substrate as the SERS signal increased. The quantitative detection was achieved in a wide range of 1–2000 μM with LOD of 1 μM. Therefore, the technique provided a convenient and ...
This method is used to detect sodium dithionite and has fast response (5 min), low LOD (0.08 μM), and good selectivity. Whatever increasing or reducing the Raman scattering cross-sectional area, these two methods both have the disadvantages that it is a challenge to choose the reagents ...