Capillary Column Selection

Head pressure 18.0 psi Coiumn fiow rate 1.5 cc/min, 40 °C Linear veiocity 35 cm/sec. 40 C Spiit ratio 20 1 

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Barry E.F. 2004. Columns Packed and capillary column selection in gas chromatography. In Modem Practice of Gas Chromatography (Barry, E.F., Ed.). Wiley-Interscience, Hoboken, N.J., pp. 65-191. 

Analysis times can be almost an hour per injection by capillary GC. Fast-GC methods for the analysis of PAHs include the use of more selective stationary phases, two-dimensional GC (GC X GC), short narrow-bore capillary columns, selective detection, advanced MS detection techniques, and faster temperature programming. Faster column heating at 100°C min from 50 to 320°C has been achieved with resistive heating of a 5 m X 0.25 mm i.d. 5% phenyl methylpolysiloxane capillary column inside a metal tube. ° This apparatus was used to separate a mixture of the EPAis in under 4 min. Although geometric isomers were not resolved, the method could be an effective screening tool. With FID detection, LODs of 5 pg /rl were demonstrated for PAHs. 

Columns Packed and Capillary Column Selection in Gas Chromatography... 

COLUMNS PACKED AND CAPILLARY COLUMN SELECTION IN GAS CHROMATOGRAPHY... 

COLUMNS PACKED AND CAPILLARY COLUMN SELECTION IN GAS CHROMATOGRAPHY TABLE 3.10 Values for Last Term of Equation 3.11... 

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