Near real-time GC analysis of volatile organic compounds using an on-line micro-trap. Report for July 1992-February 1993

Technical Report · Thu Dec 31 23:00:00 EST 1992

OSTI ID:6316970

Mitra, S; Lai, H H; Jackson, M

Micro-traps act as sample pre-concentrators for gas chromatography (GC) that can be used to make repetitive injections every few seconds. A thermal desorption micro-trap is made from a short segment of thin tubing containing an adsorbent or a chromatographic stationary phase. A carrier gas containing the analyte of interest can be introduced into the GC analytical column through the micro-trap which acts as a sample trap. Rapid heating of the micro-trap releases a concentration pulse of the analyte that serves as a GC injection similar to that from an injection valve. Micro-traps can be used in various applications such as process stream analysis, fast and multi-input chromatography.

• Research Organization: New Jersey Inst. of Tech., Newark, NJ (United States). Dept. of Chemical Engineering
• OSTI ID: 6316970
• Report Number(s): PB-93-204063/XAB; CNN: EPA-R815734
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AIR POLLUTION
AIR POLLUTION MONITORING
AROMATICS
CHROMATOGRAPHY
CONCENTRATORS
DESORPTION
ECONOMIC ANALYSIS
ECONOMICS
GAS CHROMATOGRAPHY
IN-SITU PROCESSING
INJECTION
INPUT-OUTPUT ANALYSIS
INTAKE
MONITORING
OPERATION
ORGANIC COMPOUNDS
POLLUTION
PROCESSING
REAL TIME SYSTEMS
SEPARATION PROCESSES
SORPTION
TEMPERATURE DEPENDENCE
TRAPS
VOLATILITY