Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Michael J, Pullin"'
Autor:
Asitha T. Cooray, Michael J. Pullin
Publikováno v:
Journal of the Indian Chemical Society. 99:100541
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ed4c5856a380a67bd5ebd6923325d7b
https://doi.org/10.1016/j.jics.2022.100541
https://doi.org/10.1016/j.jics.2022.100541
Autor:
Catherine F. M. Clewett, Barbara Sherwood Lollar, S. Hendrickson, Meytal B. Higgins, Clifford C. Walters, Maggie C. Y. Lau, Anthony S. Mennito, Thomas L. Kieft, Esta van Heerden, Verena B Heuer, Michael J. Pullin, Tullis C. Onstott
Publikováno v:
Organic Geochemistry. 118:116-131
The composition of dissolved organic matter (DOM) in extremely deep groundwaters has rarely been investigated. Focusing on deep fracture waters in billion year old rocks in South Africa, we hypothesized the DOM would be predominantly derived from in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8519ef01ef26105c8f1f36b3b69d3988
https://doi.org/10.1016/j.orggeochem.2018.02.003
https://doi.org/10.1016/j.orggeochem.2018.02.003
Autor:
Michael J. Pullin, Olukayode Kuloyo, Borja Linage, Tullis C. Onstott, K. Eric Wommack, Danielle N. Simkus, Thomas L. Kieft, Eric G. Sakowski, Barbara Sherwood Lollar, S. Hendrickson, Greg F. Slater, G. Borgonie, Esta van Heerden, Maggie C. Y. Lau, Kenna Wilkie, Cara Magnabosco
Publikováno v:
Geochimica et Cosmochimica Acta. 173:264-283
Deep continental subsurface fracture water systems, ranging from 1.1 to 3.3 km below land surface (kmbls), were investigated to characterize the indigenous microorganisms and elucidate microbial carbon sources and their cycling. Analysis of phospholi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d3e9b32af879d5f6726bab0931ed199
https://doi.org/10.1016/j.gca.2015.10.003
https://doi.org/10.1016/j.gca.2015.10.003
Publikováno v:
Environmental Engineering Science. 24:987-997
This study investigated the effects of iron on natural organic matter (NOM) absorbance, fluorescence, and molecular weight. Addition of iron(III) to 5 and 10 mg C/L XAD-8 isolated NOM samples at pH 5.5 caused absorbance of visible light to increase,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::00136a5d66abe5c5d800656e01f6b7b6
https://doi.org/10.1089/ees.2006.0040
https://doi.org/10.1089/ees.2006.0040
Publikováno v:
Limnology and Oceanography. 49:2011-2022
This study examines the importance of several possible mechanisms causing sunlight-mediated changes in the amounts of bacterial utilization and biomass growth on dissolved organic matter (DOM) from allochthonous sources. Our results demonstrate that,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc8f71fb4cb555e5c4e6bed8d6ec09b3
https://doi.org/10.4319/lo.2004.49.6.2011
https://doi.org/10.4319/lo.2004.49.6.2011
Autor:
Michael J. Pullin, Stephen E. Cabaniss
Publikováno v:
Geochimica et Cosmochimica Acta. 67:4067-4077
Flow injection analysis was used to study the effect of a fulvic acid on the kinetics of iron(II) oxidation and iron colloid formation under conditions approximating fresh natural waters. While iron(II) oxidation in high-carbonate inorganic solutions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52287d409d73256991390865334f7b07
https://doi.org/10.1016/s0016-7037(03)00366-1
https://doi.org/10.1016/s0016-7037(03)00366-1
Autor:
Michael J. Pullin, Stephen E. Cabaniss
Publikováno v:
Geochimica et Cosmochimica Acta. 67:4079-4089
A combination of flow-injection analysis and kinetic analysis was used to examine the speciation of iron(II) and iron(III) in fulvic acid solutions as a function of pH, ionic strength, and time. This methodology was used to follow a shift in iron spe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::396fce7fab93f8fe279f6d24a1f34138
https://doi.org/10.1016/s0016-7037(03)00367-3
https://doi.org/10.1016/s0016-7037(03)00367-3
Publikováno v:
Environmental Science & Technology. 36:364-372
In this study, we examine the role of the hydroxyl (OH*) radical as a mechanism for the photodecomposition of chromophoric dissolved organic matter (CDOM) in sunlit surface waters. Using gamma-radiolysis of water, OH* was generated in solutions of st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de63cdb22842faee5f258fd396554fa7
https://doi.org/10.1021/es0109646
https://doi.org/10.1021/es0109646
Publikováno v:
Journal of Environmental Analytical Chemistry.
The analysis of carbon type distribution and chemical structure of natural organic matter (NOM) by 13C NMR spectroscopy is important for understanding its origins and reactivity. While prior work has used solution-state NMR, solid-state NMR has the p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2b1c0f304f93c5348d8c9ae80b81c01
https://doi.org/10.4172/2380-2391.1000121
https://doi.org/10.4172/2380-2391.1000121
Autor:
Patricia A. Maurice, Ksenija Namjesnik-Dejanović, Michael J. Pullin, Stephen E. Cabaniss, Yu-Ping Chin, George R. Aiken
Publikováno v:
Soil Science. 165:545-559
Molecular weight (MW) of humic materials is a key factor controlling proton and metal binding and organic pollutant partitioning. Several studies have suggested preferential adsorption of higher MW, more aromatic moieties to mineral surfaces; quantif
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0dc9f013d6cfc9d475a2a0ca1828fb93
https://doi.org/10.1097/00010694-200007000-00003
https://doi.org/10.1097/00010694-200007000-00003