Accession Number : ADA311992

Title :   Simple Field Screening Method for White Phosphorus (P4) in Sediment.

Descriptive Note : Special rept.,

Corporate Author : COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH

Personal Author(s) : Walsh, Marianne E. ; Racine, Charles H. ; Collins, Charles M. ; Bouwkamp, Carl ; Thorne, Philip G.

PDF Url : ADA311992

Report Date : OCT 1995

Pagination or Media Count : 13

Abstract : A simple field screening method to detect white phosphorus particles in sediment is described. A thin layer of wet sediment is heated until all water evaporates. The presence of white phosphorus is indicated by visual detection of the inflammation of white phosphorus particles that occurs at relatively low temperatures (less than 40 deg C) once a protective layer of water is removed. The field screening method consistently gave positive results for samples where solvent extraction followed by gas chromatography indicated white phosphorus concentrations above 1 micrograms/g. A more sophisticated method, based on solid-phase microextraction and gas chromotography determination, was also tested. Concentrations less than 1 microgram/kg were detectable.

Descriptors :   *SEDIMENTS, *WHITE PHOSPHORUS, LOW TEMPERATURE, DETECTION, LAYERS, WATER, FIELD TESTS, PARTICLES, THINNESS, VISUAL PERCEPTION, INFLAMMATION, PHOSPHORUS, CONCENTRATION(CHEMISTRY), GAS CHROMATOGRAPHY, SOLVENT EXTRACTION, SOLID PHASES.

Subject Categories : Inorganic Chemistry
      Physical Chemistry
      Geology, Geochemistry and Mineralogy
      Hydrology, Limnology and Potamology

Distribution Statement : APPROVED FOR PUBLIC RELEASE