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John Helms
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John Helms
Publications
Publications
Selected Publications
Articles In Academic Journals
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Year
Title
2015
Spectroscopic characterization of oceanic dissolved organic matter isolated by reverse osmosis coupled with electrodialysis
.
Marine Chemistry
. 278-287.
2015
Supplementary Material to accompany: Spectroscopic characterization of oceanic dissolved organic matter isolated by reverse osmosis coupled with electrodialysis: Implications for oceanic carbon cycling
2014
Loss of optical and molecular indicators of terrigenous dissolved organic matter during long-term photobleaching
.
Aquatic Sciences
. 353-373.
2013
Photochemical bleaching of oceanic dissolved organic matter and its effect on absorption spectral slope and fluorescence
.
Marine Chemistry
. 81-91.
2013
Photochemical flocculation of terrestrial dissolved organic matter and iron
.
Geochimica et Cosmochimica Acta
. 398-413.
2012
Structural characterization of gilsonite bitumen by advanced nuclear magnetic resonance spectroscopy and ultrahigh resolution mass spectrometry revealing pyrrolic and aromatic rings substituted with aliphatic chains
.
Organic Geochemistry
. 21-36.
2010
Elucidating the structure of gilsonite bitumen by advanced Nuclear Magnetic Resonance Spectroscopy
.
Geoderma
. 17-29.
2009
Erratum: Absorption spectral slopes and slope ratios as indicators of molecular weight, source, and photobleaching of chromophoric dissolved organic matter
.
Limnol. Oceanogr
. 1023.
Conference Papers
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Year
Title
2010
Chemical and spectroscopic characterization of marine dissolved organic matter isolated using the coupled reverse osmosis-electrodialysis (RO/ED) method