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- Baes, A.U., et al. Show all 2 Author
- Soil Science Society of America journal 1990 v.54 no.5 pp. 1248-1254
- Histosols; Mollisols; Spodosols; absorbance; absorptivity; electron transfer; ethanol; fulvic acids; light scattering; milk; pH; quinones; sodium bicarbonate; solvents; wavelengths
- ... The ultraviolet-visible spectra of three fulvic acids from a Mollisol (FA1), a Histosol (FA2), and a Spodosol (FA3) were determined using four solvents: 0.05 M NaHCO₃, distilled water, 95% (v/v) ethanol, and absolute ethanol. Light scattering was evaluated by varying the distance of the sample cell from the detector. This test, which gave positive results for a dilute milk sample, showed no light ...