Record Display for the EPA National Library Catalog


Main Title Detection and Identification of Molecular Water Pollutants by Laser Raman Spectroscopy.
Author Bradle, Eugene B. ; Frenze, Charles A. ; Reeve, John ; McConne, Robert ; Lan, Kay ;
CORP Author Kentucky Water Resources Inst., Lexington.
Year Published 1971
Report Number RR-44; OWRR-A-015-KY; 06611,; A-015-KY(1)
Stock Number PB-208 029
Additional Subjects ( Water pollution ; Remote sensing) ; ( Roman spectroscopy ; Remote sensing) ; Carbon disulfide ; Benzene ; Infrared detection ; Raman spectra ; Water analysis ; Infrared spectrophotometers ; Design criteria ; Laser spectroscopy ; Water pollution detection ; Band widths
Library Call Number Additional Info Location Last
NTIS  PB-208 029 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 47p
Laser Raman spectroscopy is evolving into a primary tool for the identification of molecular water pollutants. The study approaches the limits of detectivity of carbon disulfide and benzene to about 20 ppm in water solutions using a high-resolution Raman spectrometer, cooled detectors, and photon counting techniques. An optomized design for a pollution-measuring instrument is suggested, and a prototype has been built which is useful with any value of excitation energy short of sample degrading. The present instrument scans spectrum windows with fixed preselecting filters followed by a small single monochromator with high throughput. The resulting detectivity with 20 mw of laser power was only 1000 ppm. (Author)