Soil Column Studies with a Fiber-Optic Laser Spectrometer
Abstract
A fiber-optic laser spectrometer was used in soil column experiments to study transport of contaminants through soils. A unique fiber-optic laser probe was adapted into a modular stainless-steel column so that the probe could be used to study the transport of fluorescent contaminants through soils in the column. It was verified that the probe performed well when sealed inside a soft column. Retention characteristics of napthalene and amino G acid (7-amino-1.3 napthalene disulfonic acid) on washed sand in columns were determined: amino G acid passed through the column quickly, while napthaline was retained for a significant period. A procedure for ensuring accurate calibration of the laser spectrometer was delineated. It was found that low levels of suspended solids do not interfere significantly with the fluorescence of amino G acid. Moderate levels of suspended solids were compensated for by using turbidity measurements made with the laser probe. Fiber-optic laser, Spectrometer, Transport of fluorescent, Contaminants, Soil retention of amino G acid
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1994
- Accession Number
- ADA283673
Entities
People
- Brian S. Vogt
Organizations
- Armstrong Laboratory