Accession Number : AD0787717

Title :   Discrimination of Waste Oils by Micro Emission Spectrochemical Analysis.

Descriptive Note : Final rept. on phase 1,


Personal Author(s) : Johnson,John D. ; Gram,Herbert R.

Report Date : JUN 1974

Pagination or Media Count : 57

Abstract : The discrimination of waste oil from unused oil products, when recovered from the surface of navigable waters, is made by the determination of the metallic content of the oil. A micro emission spectrochemical technique is developed, together with a low power pulsed high frequency spark discharge source. Tests are conducted on samples exposed to laboratory extractions of sea water and river water. Tests are also conducted on samples naturally weathered on the surface of brackish tidal water from an estuary. Iron, lead, copper and silicon are selected as the key elements, which identify an oil as a waste. A conceptual design of a compact, portable direct reading instrument, based on this study, is included to complete the initial phase of this work. (Author)

Descriptors :   *Oils, *Wastes, Weathering, Metals, Iron, Lead(Metal), Copper, Silicon, Chemical analysis, Emission, Portable equipment, Electric discharges, Electrodes, Atomic spectroscopy, Solvent extraction

Subject Categories : Civil Engineering
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE