Determination of airborne organics by direct sampling mass spectrometry
Two new state-of-the-art mass spectrometer systems are currently being evaluated for the determination of part-per-billion levels of organics in ambient air. These instruments include an ion trap mass spectrometer (ITMS) and a glow discharge quadrupole mass spectrometer (GDMS). Both of these instruments can be configured for direct air sampling or may be operated in conjunction with thermal desorbers for the analysis of samples preconcentrated on resin traps. Glow discharge ionization is particularly amenable to direct air monitoring; however, the use of a single quadrupole mass analyzer limits the ultimate specificity of this particular system. Important features of the ITMS include the ability to perform selective chemical ionization as well as collision induced dissociation (CID) tandem mass spectrometry (MS/MS) for compound identification. Applications of this technology have included the determination of ambient nicotine in environmental tobacco smoke (ETS), the determination of trace levels of organo-phosphonates in air, and the detection of target volatile organics in indoor atmospheres. 2 refs., 5 figs.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- Sponsoring Organization:
- DOD; DOHHS
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 6907298
- Report Number(s):
- CONF-900724-6; ON: DE90009422
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
47 OTHER INSTRUMENTATION
54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AIR QUALITY
CHEMICAL ANALYSIS
CHROMATOGRAPHY
COMMERCIALIZATION
CONCENTRATION RATIO
COST
DATA PROCESSING
EARTH ATMOSPHERE
EFFICIENCY
ELECTRODES
ELECTRONIC EQUIPMENT
ENVIRONMENTAL QUALITY
EQUIPMENT
FILTERS
FLEXIBILITY
IONIZATION
MASS SPECTROMETERS
MATTER
MEASURING INSTRUMENTS
MEASURING METHODS
MECHANICAL PROPERTIES
OPERATION
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PERFORMANCE TESTING
PETROCHEMICALS
PETROLEUM PRODUCTS
POLLUTANTS
POLYMERS
POWER SUPPLIES
PRESSURE EFFECTS
PROCESSING
PUMPS
RECOMMENDATIONS
RELIABILITY
RESINS
SAMPLING
SENSITIVITY
SEPARATION PROCESSES
SPECTROMETERS
TECHNOLOGY ASSESSMENT
TEMPERATURE EFFECTS
TENSILE PROPERTIES
TESTING
VACUUM SYSTEMS
VARIATIONS
VOLATILE MATTER