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The Quantitation of Sulfur Mustard By-Products, Sulfur-Containing Herbicides, and Organophosphonates in Soil and Concrete

1998; Taylor & Francis; Volume: 31; Issue: 9 Linguagem: Inglês

10.1080/00032719808002892

1532-236X

Bruce A. Tomkins, Gary A. Sega, Sarah J. Macnaughton,

Pesticide Residue Analysis and Safety

Abstract For approximately thirty years, the facilities at Rocky Mountain Arsenal were used for producing, packaging, and shipping sulfur- and phosphorus-containing mustard, Sarin, and pesticides. Degradation and manufacturing by-products related to these species are analyzed quickly using a combination of Accelerated Solvent Extraction and gas chromatography (flame photometric detector) to determine exactly how specific waste structural materials should be handled, treated, and landfilled. These by-products are extracted rapidly from heated samples of soil or crushed concrete using acetonitrile at 100°C and 1500 psi, then analyzed using a gas chromatograph equipped with a flame photometric detector in its phosphorus- or sulfur-selective mode. Thiodiglycol, the major hydrolysis product of sulfur mustard, must be converted to a trimethylsilyl ether prior to quantitation. Detection limits, calculated using two statistically-unbiased protocols, ranged between 2–13 ug analyte/g soil or concrete. Key Words: Sulfur mustardorganosulfursherbicidesorganophosphonatesdi-isopropyl methylphosphonatedimethyl methylphosphonateextractionsoilconcrete