Steady-state and Time-resolved fluorescence spectroscopy of aquatic humic substances (HS) isolated from Suwannee River and Nordic Lake produced by IHSS

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F16%3APU120416" target="_blank" >RIV/00216305:26310/16:PU120416 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Steady-state and Time-resolved fluorescence spectroscopy of aquatic humic substances (HS) isolated from Suwannee River and Nordic Lake produced by IHSS
Original language description
Four aquatic humic substances (HS) were characterized using advanced fluorescence techniques. Steady-state fluorescence (fluorescence excitation and emission, excitation-emission spectra – EEM) as well as time-resolved fluorescence spectroscopy were applied. The fluorescence decay of aquatic HS samples (Suwannee River Fulvic Acid, Nordic Lake Fulvic Acid, Suwannee River Humic Acid and Nordic Lake Humic Acid) was investigated using the time-correlated single photon counting technique (TCSPC). The fluorescence EEM spectra of aquatic HS were characterized by two unique fluorophores centered at an excitation/emission wavelength pair (EEWP) of 250–255/450–465 nm (peak A) and 305/440–455 nm (peak C). The fluorescence EEM spectra of NLHA and SRFA are located by prominent fluorescence maximum at the excitation/emission wavelength pair of ~ 250/330–340 nm (peak T) which is typical for protein-like material. The decay times in the range of τ1 = 0.22 ns ± 0.03 ns, τ2 = 1.2 ns ± 0.2 ns, τ3 = 3.9 ns ± 0.4 ns, and
Czech name
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Czech description
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Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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