Advances in surface-enhanced Raman spectroscopy for hazardous waste monitoring
Surface-enhanced Raman spectroscopy is being evaluated for use as an advanced method for detecting organic contaminants in groundwater during field-screening of environmental samples. The SERS technique offers attractive and unique capabilities for detecting a wide range of organic contaminants in aqueous environments at ppm to ppb levels. An inexpensive computer-controlled portable spectrometer system coupled to a fiberoptic probe has been developed for rapid on-site and in situ determination of organic contamination in groundwater. Applications of recent advances in substrate fabrication for use with environmental samples are discussed, and critical issues pertaining to substrate durability, repeatability, sensitivity, selectivity and universality are addressed. 9 refs., 5 figs., 1 tab.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- Sponsoring Organization:
- DOE/ER
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 6940669
- Report Number(s):
- CONF-900756-21; ON: DE90015539
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
47 OTHER INSTRUMENTATION
54 ENVIRONMENTAL SCIENCES
540320* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (1990-)
AQUATIC ECOSYSTEMS
CONTAMINATION
ECOSYSTEMS
EQUIPMENT
FIBER OPTICS
FILTERS
GROUND WATER
HAZARDOUS MATERIALS
HYDROGEN COMPOUNDS
LASER SPECTROSCOPY
MATERIALS
MEASURING INSTRUMENTS
MONITORING
MONITORS
NATIONAL ORGANIZATIONS
OPTICAL FILTERS
OPTICAL SPECTROMETERS
ORGANIC MATTER
ORNL
OXYGEN COMPOUNDS
POLLUTANTS
PORTABLE EQUIPMENT
PROBES
RAMAN SPECTROSCOPY
REAL TIME SYSTEMS
SPECTROMETERS
SPECTROSCOPY
SUBSTRATES
US AEC
US DOE
US ERDA
US ORGANIZATIONS
WATER
WATER POLLUTION MONITORS