Humic Acid

by Halbos, Mazin
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Halbos, Mazin Humic Acid
Halbos, Mazin - Humic Acid

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Description

Earlier studies in our laboratory indicated oxidation of humic acid by Fe(VI) but the quenching of fluorescence by a reaction product Fe(III) led to uncertainty about the extent of oxidation. The interactions of Fe(VI)/Fe(III) with the humic acids (HAs) are investigated using synchronous scan fluorescence (SSF) spectroscopy, UV-Vis spectroscopy and DART-MS spectroscopy. In the fluorescence study, there was an immediate decrease in the SSF intensity after addition of both Fe(VI) and Fe(III) to all the HA mixtures, which suggested that there is a reaction between HAs with Fe(VI) as well as Fe(III). These reactions were further investigated quantitatively by UV-vis spectroscopy. The results show that the HAs oxidize immediately after the addition of Fe(VI). Also, HAs react with Fe(III), forming a complex between the functional groups of HA and Fe(III). These interactions were further investigated by with pH change and by DART-MS. The results show a greater number of lower m/z peaks after mixing of HAs with Fe(VI) than before mixing, suggesting that the oxidation of the HAs by Fe(VI) leads to the fragmentation of these HAs.

Contributors

Author:
Halbos, Mazin

Further information

Biography Artist:
Mr. Mazin Halbos was born in Najaf- Iraq. He studied in the United State in Florida Institute of Technology where he successfully completed Master Degrees a M.Sc. in Chemistry. His Thesis was successfully defended in November 10, 2014 entitled: Investigation of the Humic Acid Response to Ferrate (VI) and Iron (III) by Fluorescence Spectroscopy....
Language:
English
Number of Pages:
108
Media Type:
Softcover
Publisher:
LAP Lambert Academic Publishing

Master Data

Product Type:
Paperback book
Release date:
May 19, 2017
Package Dimensions:
0.22 x 0.15 x 0.006 m; 0.209 kg
GTIN:
09783330319523
DUIN:
EI5VGN187CV
$55.79
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