Laser desorption and ionization of solid polycyclic aromatic hydrocarbons in air with analysis by ion mobility spectrometry
Journal Article
·
· Anal. Lett.; (United States)
Solid polycyclic aromatic hydrocarbons with 4-7 rings on metal, glass, ceramic, and plastic substrates were desorbed and ionized in air with a quadrupled Nd-YAG laser. Gaseous product ions were analyzed at ambient conditions in air directly using ion mobility spectrometry. Ablation rates for perylene on borosilicate glass were estimated as 0.01 ng/mm/sup 2/ per pulse and standard deviation for peak heights with roughly 1 ..mu..g/mm/sup 2/ was 34%. Substrate interference was avoided by using an unfocused laser beam at 0.5-1 mJ/pulse although gaseous ions also could be generated from substrates with a focused beam at 1 mJ/pulse.
- Research Organization:
- New Mexico State Univ., Las Cruces (USA)
- OSTI ID:
- 7149219
- Journal Information:
- Anal. Lett.; (United States), Vol. 21:4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
54 ENVIRONMENTAL SCIENCES
AIR
QUANTITATIVE CHEMICAL ANALYSIS
SPECTROSCOPY
POLYCYCLIC AROMATIC HYDROCARBONS
DESORPTION
ATMOSPHERIC PRESSURE
EXPERIMENTAL DATA
GAS ANALYSIS
ION-MOBILITY DETECTORS
IONIZATION
MEDIUM TEMPERATURE
NEODYMIUM LASERS
SOLIDS
AROMATICS
CHEMICAL ANALYSIS
DATA
FLUIDS
GASES
HYDROCARBONS
INFORMATION
LASERS
MEASURING INSTRUMENTS
NUMERICAL DATA
ORGANIC COMPOUNDS
SOLID STATE LASERS
400102* - Chemical & Spectral Procedures
400105 - Separation Procedures
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
54 ENVIRONMENTAL SCIENCES
AIR
QUANTITATIVE CHEMICAL ANALYSIS
SPECTROSCOPY
POLYCYCLIC AROMATIC HYDROCARBONS
DESORPTION
ATMOSPHERIC PRESSURE
EXPERIMENTAL DATA
GAS ANALYSIS
ION-MOBILITY DETECTORS
IONIZATION
MEDIUM TEMPERATURE
NEODYMIUM LASERS
SOLIDS
AROMATICS
CHEMICAL ANALYSIS
DATA
FLUIDS
GASES
HYDROCARBONS
INFORMATION
LASERS
MEASURING INSTRUMENTS
NUMERICAL DATA
ORGANIC COMPOUNDS
SOLID STATE LASERS
400102* - Chemical & Spectral Procedures
400105 - Separation Procedures
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)