Search Results - "Steinberg, Spencer M"

High-performance liquid chromatography method for determination of hydrogen peroxide in aqueous solution and application to simulated Martian soil and related materials by Steinberg, Spencer M.

“…A new method for determination of hydrogen peroxide (H 2 O 2 ) is described. H 2 O 2 reacts with iodide in the presence of ammonium molybdate and vanillic acid…”
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Measurement of lead complexation by humic acids and humic acid analogues using competitive ligand exchange by Steinberg, Spencer M., Hodge, Vernon F.

“…In soil and water, metal complexation by humic substances has been demonstrated to have great importance in determining the bioavailability of many trace…”
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Copper Complexation by Dissolved Organic Matter in arid Soils: A Voltametric Study by Spencer M. Steinberg, Vernon F. Hodge

“…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…”
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A high performance liquid chromatography method for determination of gas-phase hydrogen peroxide in ambient air using Fenton’s chemistry by Liu, Jun, Steinberg, Spencer M., Johnson, Brian J.

“…A new method for determination of hydrogen peroxide in atmospheric samples is described. Cryogenically collected H 2O 2 is reacted with sodium salicylate in…”
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Volatile aromatic hydrocarbons and dicarboxylic acid concentrations in air at an urban site in the Southwestern US by Tran, Ngoc K, Steinberg, Spencer M, Johnson, Brian J

“…Concentrations of benzene, toluene, ethylbenzene, o-xylene, and m- and p-xylene were measured at an urban sampling site in Las Vegas, NV by sorbent sampling…”
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On-line dechlorination–hydrogenation of chlorinated paraffin mixtures using GC and GC/MS by Steinberg, Spencer M., Emerson, David W.

“…Chlorinated paraffins (CPs) are straight chain hydrocarbons that are produced as complex mixtures and are used as flame retardants and paint additives. These…”
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Analysis of iodide and iodate in Lake Mead, Nevada using a headspace derivatization gas chromatography-mass spectrometry by Dorman, James W, Steinberg, Spencer M

“…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…”
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The speciation of iodine in the salt impacted Black Butte soil series along the Virgin river, Nevada, USA by Steinberg, Spencer M., Buck, Brenda, Morton, Janice, Dorman, James

“…Salt-impacted soils occur in floodplains, wetlands and backswamps in arid climates. These soils become sinks or temporary storage sites for soluble salts and…”
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A Simple, Safe Method for Preparation of Biodiesel by Behnia, Mahin S, Emerson, David W, Steinberg, Spencer M, Alwis, Rasika M, Dueñas, Josué A, Serafino, Jessica O

“…An experiment suitable for organic chemistry students is described. Biodiesel, a “green” fuel, consists of methyl or ethyl esters of long-chain fatty acids…”
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Characterization of the lignin signature in Lake Mead, NV, sediment: comparison of on-line flash chemopyrolysis (600°C) and off-line chemolysis (250°C) by Steinberg, Spencer M, Nemr, Elkas L, Rudin, Mark

“…The distribution of lignin in sediment is a useful tool for tracing the transport of land-derived organic matter in an aquatic environment. Tetramethylammonium…”
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Synthesis and characterization of inorganic double helices of cryptomelane nanomaterials by Cheney, Marcos A., Birkner, Nancy R., Ma, Longzhou, Hartmann, Thomas, Bhowmik, Pradip K., Hodge, Vernon F., Steinberg, Spencer M.

“…For the past century, researchers have invested great efforts in the synthesis of materials with various shapes and sizes. We have developed a method to…”
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Evaluation of the sorption of volatile organic compounds by unsaturated calcareous soil from Southern Nevada using inverse gas chromatography by Steinberg, Spencer M, Kreamer, David K

“…Vapor phase sorption of several volatile organic compounds (VOCs) on a calcareous soil was measured using inverse gas chromatography. Competitive sorption…”
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Chemical and colloidal analyses of natural seep water collected from the exploratory studies facility inside Yucca Mountain, Nevada, USA by Cizdziel, James V., Guo, Caixia, Steinberg, Spencer M., Yu, Zhongbo, Johannesson, Karen H.

“…Yucca Mountain is being considered as a geological repository for the USA’s spent nuclear fuel and high-level nuclear waste. Numerous groundwater seeps…”
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A review of environmental applications of bioluminescence measurements by Steinberg, Spencer M., Poziomek, Edward J., Engelmann, William H., Rogers, Kim R.

“…This review of the recent literature on environmental applications of bioluminescence systems will focus on in vivo and in vitro bioluminescence methods that…”
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Destruction of Cyanide in Water Using N-Chlorinated Secondary Sulfonamide-Substituted Macroporous Poly(styrene-co-divinylbenzene) by Zhang, Yu, Emerson, David W, Steinberg, Spencer M

“…Cyanide ion in water is converted to cyanate ion by use of macroporous poly(styrene-co-divinylbenzene) bearing regenerable N-chlorinated N-alkylsulfonamide…”
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Peptide decomposition in the neutral pH region via the formation of diketopiperazines by Steinberg, Spencer M, Bada, Jeffrey L

“…In the neutral pH region, the decomposition of the tripeptides Leu-Gly-Gly and Gly-Leu-Gly at 130 degree C and the hexapeptide Phe-Gly-Leu-Gly-Val-Gly at 100…”
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Persistence of 1,2-dibromoethane in soils: entrapment in intraparticle micropores by Steinberg, Spencer M, Pignatello, Joseph J, Sawhney, Brij L

“…The soil fumigant 1,2-dibromoethane (EDB) was found in topsoils from agricultural sites up to 19 years after its last known application. The desorption and…”
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The Rearrangement of an Allylic Dithiocyanate: An Experiment for Organic or Physical Chemistry Using NMR Analysis by Emerson, David W, Steinberg, Spencer M, Titus, Richard L

“…An experiment suitable for students who have taken either organic chemistry or organic and physical chemistry is described. The simple preparation and…”
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Aldehyde and Monocyclic Aromatic Hydrocarbon Mixing Ratios at an Urban Site in Las Vegas, Nevada by Jing, Linhong, Steinberg, Spencer M., Johnson, Brian J.

“…Linhong Jing completed a master's degree in chemistry at UNLV and is currently enrolled in the Ph.D. program at Purdue University. Her address is Department of…”
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The sorption of selenite on various cement formulations by Johnson, Elizabeth A., Rudin, Mark J., Steinberg, Spencer M., Johnson, William H.

“…Twenty-seven cementitious formulations containing three levels of water/solids ratio (0.45, 0.50, and 0.55), three concentrations of silica fume (0, 10, and…”
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