“…It is well established that �uorescence spectroscopy is an effective method for environmental monitoring and hydrographic measurements [33,34], characterization of benthic organisms [35], algal cells [36,37], corals [38] and higher plants [39][40][41][42][43][44][45][46], speci�cation of photosynthetic pigments [47][48][49], and other biological molecules [50,51]. Spectral methods were successfully employed for studying NOM in natural water [52][53][54][55][56][57][58][59], as well as commercial HS preparations [60][61][62][63].…”