Bruce A. Tomkins
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Preparation of radioactive ''mixed'' waste samples for measurement of RCRA (Resource Conservation and Recovery Act) organic compounds. [Mixed waste containing alpha-, beta-, or gamma-emitting radionuclides] Open
A radioactive ''mixed'' waste typically contains alpha-, beta-, or gamma-emitting radionuclides and varying quantities of semivolatile or volatile organic species, some or all of which may be named specifically by the Resource Conservation…
Quantitation of Cotinine in Nonsmoker Saliva Using Chip-Based Nanoelectrospray Tandem Mass Spectrometry Open
A new analytical procedure was developed for the quantitation of nonsmoker salivary cotinine. Small volumes of saliva were diluted with water, fortified with cotinine-d3 (internal standard), then passed through small extraction columns. Th…
Next Generation Extractants for Cesium Separation from High-Level Waste: From Fundamental Concepts to Site Implementation Open
General project objectives. This project seeks a fundamental understanding and major improvement in cesium separation from high-level waste by cesium-selective calixcrown extractants. Systems of particular interest involve novel solvent-ex…
An Improved Calibration Method for Hydrazine Monitors for the United States Air Force Open
This report documents the results of Phase 1 of the ''Air Force Hydrazine Detector Characterization and Calibration Project''. A method for calibrating model MDA 7100 hydrazine detectors in the United States Air Force (AF) inventory has be…
The Quantitation of Sulfur Mustard By-Products, Sulfur-Containing Herbicides, and Organophosphonates in Soil and Concrete Open
Over the past fifty years, the facilities at Rocky Mountain Arsenal have been used for the manufacturing, bottling, and shipping sulfur- containing herbicides, sulfur mustard, and Sarin. There is a need for analytical methods capable of de…
The Hydrolysis of Di-Isopropyl Methylphosphonate in Ground Water Open
Di-isopropyl methylphosphonate (DIMP) is a byproduct from the manufacture of the nerve agent Sarin. The persistence of DIMP in the ground water is an important question in evaluating the potential environmental impacts of DIMP contaminatio…
Determination of Small Dialkyl Organophosphonates at Microgram/L Concentrations in Contaminated Groundwaters Using Multiple Extraction Membrane Disks Open
Di-isopropyl methylphosphonate (DIMP) and dimethyl methylphosphonate (DMMP) are byproducts and surrogates for Sarin (GB) and VX; they are readily quantitated at {mu}g/L concentrations in groundwaters. Liter aqueous samples are fortified wi…
Determinations of N-Nitrosodimethylamine (NDMA) at part-per-trillion (ng/L) concentrations in contaminated groundwaters and drinking waters featuring carbon-based membrane extraction disks Open
A new solid phase extraction procedure extracts N- Nitrosodimethylamine (NDMA) at part-per-trillion (ng/L) concentrations from aqueous samples using a C{sub 18} (reversed-phase) membrane extraction disk layered over a carbon-based extracti…
Determination of Nitroester and Stabilizer Migration in combustible cartridge case wall Open
Propellant nitroesters (diethyleneglycol dinitrate and nitroglycerin) and stabilizer (Akardite II, N‐methyl‐N,N′‐diphenylurea) were determined in combustible cartridge case (CCC) wall specimens from 120 mm M829 rounds which had been expose…
Determination of N-nitrosodimethylamine at part-per-trillion levels in drinking waters and contaminated groundwaters Open
N-nitrosodimethylamine is a high, carcinogenic manufacturing by-product of unsymmetrical dimethyl hydrazine a component of rocket fuel. Prior disposal practices resulted in the contamination of groundwater near certain military installatio…
Characterization of rocket propellant combustion products Open
The overall objective of the work described in this report is four-fold: to (a) develop a standardized and experimentally validated approach to the sampling and chemical and physical characterization of the exhaust products of scaled-down …
Characterization of rocket propellant combustion products. Chemical characterization and computer modeling of the exhaust products from four propellant formulations: Final report, September 23, 1987--April 1, 1990 Open
The overall objective of the work described in this report is four-fold: to (a) develop a standardized and experimentally validated approach to the sampling and chemical and physical characterization of the exhaust products of scaled-down …
Stability of Explosives in Environmental Water and Soil Samples Open
This report focuses on data generated for the purpose of establishing the stability of HMX, RDX, TNT, and DNT explosives in environmental water and soil samples. The study was carried out over a one year time frame and took into account as…
Sampling and analysis of diesel engine exhaust and the motor pool workplace atmosphere: Final report, (August 1, 1984-February 28, 1988) Open
Diesel engine exhaust and the motor pool workplace atmosphere at four garages in Fort Carson, CO, were sampled and analyzed for organic compounds to better define the fuel related workplace atmosphere contamination to which military person…
Physical and chemical characterization of SRC (solvent refined coal) Toxicology Program samples. [SRC solids; SRC and TSL middle distillates] Open
The components traditionally thought to contribute to the tumorigenic response of the SRC-I Solid in the inhalation bioassay are PAH which are found at concentrations up to 280 ..mu..g/g each. These compounds are readily leached from the s…
Liquid Chromatographic Determination of Phenol and Cresols in Total Particulate Matter of Cigarette Smoke Open
The phenol and cresol contents of the total particulate matter of tobacco smoke can be conveniently determined. A simple extraction procedure using IN base is followed by partial neutralization with glacial acetic acid and elution of hydro…