One of the challenging aspects of experimentally recovering a spectral response from the solvation shell is the fact that under usual circumstances, the number of solvent molecules forming the solvation shell is overwhelmingly inferior to the number of solvent molecules constituting the bulk. One approach to identify the changes in the spectral features arising due to the presence of solute, is to study the difference spectrum generated by subtracting neat solvent spectrum from the solution spectrum. This approach has been employed in examining solvation shell water around silver nanoparticles using Raman spectroscopy, when the authors measured background spectra as well as spectra of aqueous dispersions of laser ablated silver NPs and used the spectral subtraction method on their way to derive their conclusions. Another innovative way to tackle the issue is exemplified by the work reported by Novelli et. al. in which hydration shell water around neutral and charged Au NPs embedded inside micellar formation was probed by modification of the water content in an organic solvent. It was possibly hypothesised by the authors that after drying the samples, the leftover water content being probed, was exclusively the hydration shell water. Apart from these techniques, multivariate curve resolution (MCR) method of data analysis under physically meaningful constraints offers a powerful alternative that can be employed to distinguish the solute-correlated spectrum from the bulk solvent spectrum. The latter approach has an added advantage, over the difference strategy, of being able to provide a complete spectral response of solute-correlated solvent (solvation shell) which can be directly compared with the bulk solvent spectrum, allowing the possibility to observe them side by side, in order to gain useful insights. In addition, this method allows the user to study a system without any environmental modification around the solute. This enables an investigation at a condition that better resembles commonplace use cases of the solute-solvent system under consideration. This approach can be referred to as 'Solvation shell spectroscopy' in general, in line with calling it 'hydration shell spectroscopy' 14 when the solvent is water. This approach has been successfully used in the past in conjunction with Raman and infrared spectral data gathered from aqueous systems.