Brett D Walker
Brett D Walker
Assistant Professor and Canada Research Chair (Tier II), University of Ottawa
Verified email at uottawa.ca - Homepage
Title
Cited by
Cited by
Year
Re-assessing the surface cycling of molybdenum and rhenium
CA Miller, B Peucker-Ehrenbrink, BD Walker, F Marcantonio
Geochimica et Cosmochimica Acta 75 (22), 7146-7179, 2011
1642011
Chemosynthetic origin of 14 C-depleted dissolved organic matter in a ridge-flank hydrothermal system
MD McCarthy, SR Beaupré, BD Walker, I Voparil, TP Guilderson, ...
Nature Geoscience 4 (1), 32-36, 2011
972011
Pacific carbon cycling constrained by organic matter size, age and composition relationships
BD Walker, SR Beaupré, TP Guilderson, MD McCarthy, ERM Druffel
Nature Geoscience 9 (12), 888-891, 2016
492016
Dissolved inorganic carbon isotopic composition of low-temperature axial and ridge-flank hydrothermal fluids of the Juan de Fuca Ridge
BD Walker, MD McCarthy, AT Fisher, TP Guilderson
Marine Chemistry 108 (1-2), 123-136, 2008
462008
Large-volume ultrafiltration for the study of radiocarbon signatures and size vs. age relationships in marine dissolved organic matter
BD Walker, SR Beaupre, TP Guilderson, ERM Druffel, MD McCarthy
Geochimica et Cosmochimica Acta 75 (18), 5187-5202, 2011
382011
Radiocarbon in dissolved organic carbon of the Atlantic Ocean
ERM Druffel, S Griffin, AI Coppola, BD Walker
Geophysical Research Letters 43 (10), 5279-5286, 2016
292016
Elemental and isotopic characterization of dissolved and particulate organic matter in a unique California upwelling system: Importance of size and composition in the export of …
BD Walker, MD McCarthy
Limnology and oceanography 57 (6), 1757-1774, 2012
252012
Radiocarbon analysis of individual amino acids: carbon blank quantification for a small-sample high-pressure liquid chromatography purification method
AL Bour, BD Walker, TAB Broek, MD McCarthy
Analytical chemistry 88 (7), 3521-3528, 2016
232016
Radiocarbon signatures and size–age–composition relationships of major organic matter pools within a unique California upwelling system
BD Walker, TP Guilderson, KM Okimura, MB Peacock, MD McCarthy
Geochimica et Cosmochimica Acta 126, 1-17, 2014
192014
High‐precision measurement of phenylalanine δ15N values for environmental samples: A new approach coupling high‐pressure liquid chromatography purification and elemental …
TAB Broek, BD Walker, DH Andreasen, MD McCarthy
Rapid Communications in Mass Spectrometry 27 (21), 2327-2337, 2013
192013
Coupled ultrafiltration and solid phase extraction approach for the targeted study of semi-labile high molecular weight and refractory low molecular weight dissolved organic matter
TAB Broek, BD Walker, TP Guilderson, MD McCarthy
Marine Chemistry 194, 146-157, 2017
172017
Linked changes in marine dissolved organic carbon molecular size and radiocarbon age
BD Walker, FW Primeau, SR Beaupré, TP Guilderson, ERM Druffel, ...
Geophysical Research Letters 43 (19), 10,385-10,393, 2016
172016
Direct visualization of individual aromatic compound structures in low molecular weight marine dissolved organic carbon
S Fatayer, AI Coppola, F Schulz, BD Walker, TA Broek, G Meyer, ...
Geophysical Research Letters 45 (11), 5590-5598, 2018
152018
Solid phase extraction method for the study of black carbon cycling in dissolved organic carbon using radiocarbon
AI Coppola, BD Walker, ERM Druffel
Marine Chemistry 177, 697-705, 2015
152015
A large‐volume microfiltration system for isolating suspended particulate organic matter: fabrication and assessment versus GFF filters in central North Pacific
LA Roland, MD McCarthy, TD Peterson, BD Walker
Limnology and Oceanography: Methods 7 (1), 64-80, 2009
142009
Stable and radiocarbon isotopic composition of dissolved organic matter in the Gulf of Mexico
BD Walker, ERM Druffel, J Kolasinski, BJ Roberts, X Xu, BE Rosenheim
Geophysical Research Letters 44 (16), 8424-8434, 2017
132017
Total uncertainty of radiocarbon measurements of marine dissolved organic carbon and methodological recommendations
E Druffel, S Griffin, BD Walker, AI Coppola, DS Glynn
Radiocarbon 55 (3â 4), 2013
132013
Radiocarbon in dissolved organic and inorganic carbon of the Arctic Ocean
ERM Druffel, S Griffin, CS Glynn, R Benner, BD Walker
Geophysical Research Letters 44 (5), 2369-2376, 2017
102017
Effect of acidified versus frozen storage on marine dissolved organic carbon concentration and isotopic composition
BD Walker, S Griffin, ERM Druffel
Radiocarbon 59 (3), 843-857, 2017
92017
An improved method for the sealed-tube zinc graphitization of microgram carbon samples and 14C AMS measurement
BD Walker, X Xu
Nuclear Instruments and Methods in Physics Research Section B: Beam …, 2019
82019
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