Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Spencer M. Steinberg"'
Autor:
Spencer M. Steinberg, Vernon F. Hodge
Publikováno v:
Heliyon, Vol 8, Iss 12, Pp e12437- (2022)
In soil and water, metal complexation by humic substances has been demonstrated to have great importance in determining the bioavailability of many trace metals including lead. The binding of lead by humic acids has important implications for lead to
Externí odkaz:
https://doaj.org/article/909d4b2ddb2a41e3960dba6673883d30
Autor:
Spencer M. Steinberg, Vernon F. Hodge
Publikováno v:
Environments, Vol 5, Iss 11, p 125 (2018)
A voltammetric method was used to estimate the complexing capacity of water extracts from both desert soils sampled at the root zone of creosote and salt cedar plants, and in soils from interspace or background regions where no vegetative influence w
Externí odkaz:
https://doaj.org/article/b3254e6ab92043a0bb8b102e9a339672
Autor:
Vernon F. Hodge, Spencer M. Steinberg
Publikováno v:
Environments, Vol 7, Iss 94, p 94 (2020)
Environments
Volume 7
Issue 11
Environments
Volume 7
Issue 11
Differential pulse polarography (DPP) was used to assess the interaction of Pb2+ with various humic acid analogs and several humic acids. DPP analysis demonstrated that the reduction peak maximum (Ep) for Pb2+ shifted to more negative values in the p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fef1c76f6337e61366fbb8a0f67e0cd4
https://www.mdpi.com/2076-3298/7/11/94
https://www.mdpi.com/2076-3298/7/11/94
Publikováno v:
Environments
Volume 7
Issue 9
Environments, Vol 7, Iss 69, p 69 (2020)
Volume 7
Issue 9
Environments, Vol 7, Iss 69, p 69 (2020)
Gd3+ forms a strongly colored complex with 4-(2-pyridylazo)-resorcinol (PAR) in aqueous solutions. We characterized the Gd3+-PAR complex in order to use it as a probe of Gd3+ speciation in the presence of environmentally relevant ligands. The formati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62b9ec9f98925227e2784b8ae6c83567
https://doi.org/10.3390/environments7090069
https://doi.org/10.3390/environments7090069
Publikováno v:
Quaternary Geochronology. 20:8-22
The difficulty of isolating intact, mineralogically pure pedogenic crystals from cemented soil is one of the most significant obstacles to quantifying rates of soil formation, geomorphic processes, and climate change in arid regions. We evaluate the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b56ac76a8020bec5c8d64db5077bdb7
https://doi.org/10.1016/j.quageo.2013.09.006
https://doi.org/10.1016/j.quageo.2013.09.006
Publikováno v:
Environmental monitoring and assessment. 189(3)
Amendment of a carbon paste electrode consisting of graphite and Nujol®, with a variety of organic and inorganic materials, allows direct adsorption of silver nanoparticles (AgNPs) from aqueous solution in either open or close circuit modes. The ads
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4129a71dde773b1b314d7243d483d8f8
https://pubmed.ncbi.nlm.nih.gov/28176261
https://pubmed.ncbi.nlm.nih.gov/28176261
Autor:
Aldo Morante, Kyle Dayton, Kenneth Z. McKenna, Matt Heuton, Luis Ayala, Chris Burg, Georgina Puentedura, Stanley D. Hillyard, Natasha Urbina, Spencer M. Steinberg, Frank van Breukelen
Publikováno v:
The Journal of experimental biology. 218(Pt 23)
In order to estimate metabolic demands of desert pupfish for conservation purposes, we measured oxygen consumption in fish acclimated to the ecologically relevant temperatures of 28 or 33°C. For these experiments, we used fish derived from a refuge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e2e47e01e81278995fa8486ce9517a90
https://pubmed.ncbi.nlm.nih.gov/26632453
https://pubmed.ncbi.nlm.nih.gov/26632453
Autor:
Vernon F. Hodge, Spencer M. Steinberg
Publikováno v:
Environments, Vol 5, Iss 11, p 125 (2018)
Environments
Volume 5
Issue 11
Environments
Volume 5
Issue 11
A voltammetric method was used to estimate the complexing capacity of water extracts from both desert soils sampled at the root zone of creosote and salt cedar plants, and in soils from interspace or background regions where no vegetative influence w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b9196e5b97e41190a75281b3169c87df
https://doi.org/10.3390/environments5110125
https://doi.org/10.3390/environments5110125
Autor:
Spencer M. Steinberg, James W. Dorman
Publikováno v:
Environmental Monitoring and Assessment. 161:229-236
We report here a derivatization headspace method for the analysis of inorganic iodine in water. Samples from Lake Mead, the Las Vegas Wash, and from Las Vegas tap water were examined. Lake Mead and the Las Vegas Wash contained a mixture of both iodid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a8dd873d77e0130f8a3b0c7eae28cd7
https://doi.org/10.1007/s10661-008-0740-5
https://doi.org/10.1007/s10661-008-0740-5
Publikováno v:
Applied Geochemistry. 23:3589-3596
Salt-impacted soils occur in floodplains, wetlands and backswamps in arid climates. These soils become sinks or temporary storage sites for soluble salts and contaminants including agricultural chemicals, industrial pollutants and radionuclides such
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c1fe0be419a7b00a170cecd1ae369a5
https://doi.org/10.1016/j.apgeochem.2008.07.017
https://doi.org/10.1016/j.apgeochem.2008.07.017