Tags

Type your tag names separated by a space and hit enter

Fluorescence analysis of humic and fulvic acids from two Brazilian oxisols as affected by biosolid amendment.
Anal Bioanal Chem. 2005 Mar; 381(6):1281-8.AB

Abstract

Conventional monodimensional fluorescence spectroscopy in the emission, excitation, and synchronous-scan modes and total luminescence spectroscopy have proven to be sensitive techniques for characterization and differentiation of humic acid (HA) and fulvic acid (FA) fractions isolated from an aerobically and anaerobically digested and limed biosolid, two layers of a sandy and a clayey Brazilian oxisol, and the corresponding biosolid-amended soils. The spectral patterns and the relative fluorescence intensities suggest greater molecular heterogeneity, less aromatic polycondensation, and less humification of biosolid HA and FA compared with soil HA and FA. However, the differences are smaller for the FA fractions than for the HA fractions. Fluorescence properties of soil HA and FA differ slightly as a function of soil type and soil layer. Biosolid application causes a shift to shorter wavelengths of the main fluorescence peaks and marked variation of the relative fluorescence intensities of HA and FA isolated from amended soils. These results suggest that molecular components of relatively small molecular size, with a low level of aromatic polycondensation, and low degree of humification present in biosolid HA and FA are partially and variously incorporated into amended soil HA and FA. In general, these modifications seem to be smaller in HA and FA from the clayey soil layers than in those from the sandy soil layers, possibly because of protective effects exerted by clay minerals of native soil HA and FA against disturbances caused by biosolid application.

Authors+Show Affiliations

Bertoncini EI
Departamento de Ciências Exatas, Escola Superior de Agricultura Luiz de Queiroz, University of São Paulo, Brazil.
D'Orazio V
No affiliation info available
Senesi N
No affiliation info available
Mattiazzo ME
No affiliation info available

MeSH

BenzopyransBrazilEnvironmental MonitoringFluorescenceHumic SubstancesHumiditySoil PollutantsSpectrometry, Fluorescence

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

15744515

Citation

Bertoncini, E I., et al. "Fluorescence Analysis of Humic and Fulvic Acids From Two Brazilian Oxisols as Affected By Biosolid Amendment." Analytical and Bioanalytical Chemistry, vol. 381, no. 6, 2005, pp. 1281-8.
Bertoncini EI, D'Orazio V, Senesi N, et al. Fluorescence analysis of humic and fulvic acids from two Brazilian oxisols as affected by biosolid amendment. Anal Bioanal Chem. 2005;381(6):1281-8.
Bertoncini, E. I., D'Orazio, V., Senesi, N., & Mattiazzo, M. E. (2005). Fluorescence analysis of humic and fulvic acids from two Brazilian oxisols as affected by biosolid amendment. Analytical and Bioanalytical Chemistry, 381(6), 1281-8.
Bertoncini EI, et al. Fluorescence Analysis of Humic and Fulvic Acids From Two Brazilian Oxisols as Affected By Biosolid Amendment. Anal Bioanal Chem. 2005;381(6):1281-8. PubMed PMID: 15744515.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Fluorescence analysis of humic and fulvic acids from two Brazilian oxisols as affected by biosolid amendment. AU - Bertoncini,E I, AU - D'Orazio,V, AU - Senesi,N, AU - Mattiazzo,M E, Y1 - 2005/03/03/ PY - 2004/07/22/received PY - 2004/12/23/accepted PY - 2004/12/13/revised PY - 2005/3/4/pubmed PY - 2005/9/15/medline PY - 2005/3/4/entrez SP - 1281 EP - 8 JF - Analytical and bioanalytical chemistry JO - Anal Bioanal Chem VL - 381 IS - 6 N2 - Conventional monodimensional fluorescence spectroscopy in the emission, excitation, and synchronous-scan modes and total luminescence spectroscopy have proven to be sensitive techniques for characterization and differentiation of humic acid (HA) and fulvic acid (FA) fractions isolated from an aerobically and anaerobically digested and limed biosolid, two layers of a sandy and a clayey Brazilian oxisol, and the corresponding biosolid-amended soils. The spectral patterns and the relative fluorescence intensities suggest greater molecular heterogeneity, less aromatic polycondensation, and less humification of biosolid HA and FA compared with soil HA and FA. However, the differences are smaller for the FA fractions than for the HA fractions. Fluorescence properties of soil HA and FA differ slightly as a function of soil type and soil layer. Biosolid application causes a shift to shorter wavelengths of the main fluorescence peaks and marked variation of the relative fluorescence intensities of HA and FA isolated from amended soils. These results suggest that molecular components of relatively small molecular size, with a low level of aromatic polycondensation, and low degree of humification present in biosolid HA and FA are partially and variously incorporated into amended soil HA and FA. In general, these modifications seem to be smaller in HA and FA from the clayey soil layers than in those from the sandy soil layers, possibly because of protective effects exerted by clay minerals of native soil HA and FA against disturbances caused by biosolid application. SN - 1618-2642 UR - https://www.unboundmedicine.com/medline/citation/15744515/Fluorescence_analysis_of_humic_and_fulvic_acids_from_two_Brazilian_oxisols_as_affected_by_biosolid_amendment_ DB - PRIME DP - Unbound Medicine ER -