Publication: Using flow field-flow fractionation (Fl-FFF) for observation of salinity effect on the size distribution of humic acid aggregates
Issued Date
2017-02-19
Resource Type
ISSN
10290397
03067319
03067319
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2-s2.0-85014522250
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Mahidol University
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SCOPUS
Bibliographic Citation
International Journal of Environmental Analytical Chemistry. Vol.97, No.3 (2017), 217-229
Suggested Citation
Rabiab Suwanpetch, Juwadee Shiowatana, Atitaya Siripinyanond Using flow field-flow fractionation (Fl-FFF) for observation of salinity effect on the size distribution of humic acid aggregates. International Journal of Environmental Analytical Chemistry. Vol.97, No.3 (2017), 217-229. doi:10.1080/03067319.2017.1296141 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/41594
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Title
Using flow field-flow fractionation (Fl-FFF) for observation of salinity effect on the size distribution of humic acid aggregates
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Abstract
© 2017 Informa UK Limited, trading as Taylor & Francis Group. Flow field-flow fractionation (Fl-FFF) was used to investigate the effect of salinity on the size distribution of humic acid (HA) aggregates in estuarine water. In water with high salinity as estuarine water, size distributions were slightly broadened with increasing contact time between HA and estuarine water. At the longest contact times (89 days) and highest salinity value (28 psu, g kg−1), the peak maxima were observed at 1.7 and 8.6 nm when detected at 254 nm, and at 1.9 and 9.1 nm when detected at 400 nm. In addition, Fl-FFF with an inductively coupled plasma mass spectrometry was applied to examine the effect of salinity on the size distribution of Cd, Ce, Cu, Mn and Pb-binding HA aggregates in estuarine water with different salinity values. At 1 day contact time, the peak maxima of Cd, Ce, Cu, Mn and Pb-binding HA aggregates in water with increased salinity values were increased and gave the larger breadth of size distribution. The larger size fraction of HA aggregates showed more affinity for Pb, Cd, Ce and Mn than Cu whereas the smaller size fraction of humic aggregates showed preferential binding towards Cu.
