Total luminescence spectra of IHSS standard and reference fulvic acids, humic acids and natural organic matter: comparison of aquatic and terrestrial source terms

Genesis of structural features of humic acids from the sediments of a high productive coastal zone

“…The intense longer wavelength emission is typical of more humified HAs and can be assigned to condensed aromatic rings and other unsaturated bond systems capable of high degree of resonance (Alberts and Takacs, 2004). The presence of quinone groups in HAs is highly plausible since it has been reported that the fluorescence of HAs is mainly because of quinone functional groups (Klapper et al, 2002;Wolfe et al, 2002).…”

Steam treatment of surface soil: how does it affect water-soluble organic matter, C mineralization, and bacterial community composition?

“…1) were built using the FLWinlab software (Perkin Elmer). Correspondence of the main noticeable peaks (Table 1) was established in these maps based on data collected from the literature (Alberts and Takacs 2004;Burdige et al 2004;Saadi et al 2006;Sierra et al 2005).…”

The application of photoinduced luminescence in research on humic substances of various origins

“…In the case of photoluminescence, this can be induced with ultraviolet, visible, or infrared radiation. Studies on various signs of luminescence may provide detailed information about the chemical composition and properties of the material examined, as well as about processes occurring after induction has taken place (Lipski et al 1999, Brzóstowicz 2002, Alberts and Takacs 2004.…”