Flash Pyrolysis-Gas Chromatography Using an Internal Standard For Quantitative Determination Of Resin Content in A Model Thermosetting Composite System

1968 ◽  
Vol 1 (8) ◽  
pp. 499-508 ◽  
Author(s):  
Daniel J. O'neil
Keyword(s):  
Gas Chromatography ◽  
Quantitative Determination ◽  
Composite System ◽  
Internal Standard ◽  
Resin Content ◽  
Pyrolysis Gas ◽  
Flash Pyrolysis ◽  
Pyrolysis Gas Chromatography ◽  
Thermosetting Composite

The Determination of Rubber in Atmospheric Dusts

1973 ◽  
Vol 46 (1) ◽  
pp. 232-241 ◽  
Author(s):  
J. A. Cardina
Keyword(s):  
Gas Chromatography ◽  
Quantitative Determination ◽  
Residential Area ◽  
Truck Traffic ◽  
Pyrolysis Gas ◽  
Passenger Car ◽  
Pyrolysis Gas Chromatography ◽  
Car Traffic

Abstract Samples of airborne dusts were collected near heavily traveled highways and analyzed for rubber by pyrolysis gas chromatography. Dust samples obtained in truck traffic gave pyrolysis chromatograms markedly different from those obtained in passenger car traffic, and which correspond with those derived from known tire tread compounds. The distinction was based on the presence of styrene or dipentene in the pyrolyzates. Quantitative determination of dusts from the Pittsburgh Liberty Tunnel and the Akron Expressway Interchange show the presence of 1.5 to 2.5 per cent rubber, whereas dust from a residential area shows about 0.25 per cent. Methods were developed for sampling atmospheric dusts and preparing small amounts in a form suitable for pyrolysis.

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