The polarity of the prepared NADES was determined using solvatochromic method with Nile red, described previously in Fernandes et al. [11 (link)]. The absorbance of the samples was obtained using a UV-spectrophotometer (GENESYS 50, Thermo Scientific, Waltham, MA, USA) wavelength range of 400–800 nm. Measurements were conducted in triplicates. Polarity of BE:Gly was determined previously [12 (link)].
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