Question

Why are red wines difficult to analyze using Raman spectroscopy? Suggest steps that can be taken to alleviate the issues encountered in Raman analysis of red wines.

Answer 1

The analysis of red wine is difficult using Raman spectroscopy specialy using conventional Raman spectroscopy analysis methods. This is due to the high degree of fluorescence in red wine. but raman spectroscopy analysis is very convenient for Instant measure of the process and quality control of the wine production. we have to overcome the strong flouresence nature of this red wine. for that long-wavelength, especially 1064 nm, Raman instruments, that are often considered the benchmark in dealing with fluorescent substances and is used for this red wine analysis. Many users using 785 nm and 830 nm (near-infrared) wavelegth to avoid this flouresence.