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
- Resource Relation:
- Conference: SPIE's international symposium on optical and optoelectronic applied science and engineering exhibit, San Diego, CA (USA), 8-13 Jul 1990
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
47 OTHER INSTRUMENTATION
GROUND WATER
CONTAMINATION
HAZARDOUS MATERIALS
MONITORING
RAMAN SPECTROSCOPY
AQUATIC ECOSYSTEMS
FIBER OPTICS
OPTICAL FILTERS
OPTICAL SPECTROMETERS
ORGANIC MATTER
ORNL
POLLUTANTS
PORTABLE EQUIPMENT
PROBES
REAL TIME SYSTEMS
SUBSTRATES
WATER POLLUTION MONITORS
ECOSYSTEMS
EQUIPMENT
FILTERS
HYDROGEN COMPOUNDS
LASER SPECTROSCOPY
MATERIALS
MEASURING INSTRUMENTS
MONITORS
NATIONAL ORGANIZATIONS
OXYGEN COMPOUNDS
SPECTROMETERS
SPECTROSCOPY
US AEC
US DOE
US ERDA
US ORGANIZATIONS
WATER
540320* - Environment
Aquatic- Chemicals Monitoring & Transport- (1990-)
440600 - Optical Instrumentation- (1990-)