Research output: Contribution to Journal/Magazine › Journal article
Research output: Contribution to Journal/Magazine › Journal article
}
TY - JOUR
T1 - Trapping efficiencies of capillary cold traps for C2-C10 hydrocarbons.
AU - Cao, Xu-Liang
AU - Hewitt, CN
PY - 1992
Y1 - 1992
N2 - The trapping performance of four different capillary cold traps (deactivated, coated, Tenax-TA and Chromosorb 101 packed traps) for C2-C5 n-alkenes, isoprene, benzene, toluene, p-xylene, mesitylene, α-pinene, β-pinene, 1,2,4-trimethylbenzene and 1,2,3-trimethylbenzene were determined over the temperature range −20 and −180°C. All the hydrocarbons except ethylene were found to be retained by all the traps at different temperatures, but only the Chromosorb 101 capillary trap retained ethylene, and then not completely. The coatings were found to increase the trapping efficiency for the higher hydrocarbons (C6), whereas the packings increased the trapping efficiency for all compounds (C2-C10). A linear relationship was found between the boiling point of the compound and its maximum temperature. The flow-rate of the carrier gas (10–60 ml/min) was found to affect the trapping efficiency of the C2-C4 hydrocarbons.
AB - The trapping performance of four different capillary cold traps (deactivated, coated, Tenax-TA and Chromosorb 101 packed traps) for C2-C5 n-alkenes, isoprene, benzene, toluene, p-xylene, mesitylene, α-pinene, β-pinene, 1,2,4-trimethylbenzene and 1,2,3-trimethylbenzene were determined over the temperature range −20 and −180°C. All the hydrocarbons except ethylene were found to be retained by all the traps at different temperatures, but only the Chromosorb 101 capillary trap retained ethylene, and then not completely. The coatings were found to increase the trapping efficiency for the higher hydrocarbons (C6), whereas the packings increased the trapping efficiency for all compounds (C2-C10). A linear relationship was found between the boiling point of the compound and its maximum temperature. The flow-rate of the carrier gas (10–60 ml/min) was found to affect the trapping efficiency of the C2-C4 hydrocarbons.
KW - Trapping
KW - Hydrocarbon
KW - Temperature
KW - Capillary column
KW - Performance evaluation
KW - Benzenic compound
KW - Ethylenic compound
KW - Pinene
U2 - 10.1016/0021-9673(92)87201-I
DO - 10.1016/0021-9673(92)87201-I
M3 - Journal article
VL - 627
SP - 219
EP - 226
JO - Journal of Chromatography A
JF - Journal of Chromatography A
SN - 1873-3778
IS - 1-2
ER -