2006-10-01 21:24:06 · 3 answers · asked by anant y 1 in Science & Mathematics ➔ Chemistry
There are many factors which affect the retention the retention time of compounds in a GC. In this case it is probably the boiling point of the two compounds. The affinity of each compound for the stationary phase of the column also has a big effect. It may be possible that there is a column out there somewhere that allows DCM to elute faster than ethanol.
2006-10-02 00:06:17 · answer #1 · answered by xox_bass_player_xox 6 · 0⤊ 0⤋
Because the ethanol takes less time to travel through the packing than Dicloromethane...
Perhaps its shape slips through better, perhaps its a smaller molicule, perhaps it is less attracted to the packing of the chomatography tube.
2006-10-02 04:35:14 · answer #2 · answered by profit0004 5 · 0⤊ 0⤋
Ethanol is more volitile.
2006-10-02 04:32:39 · answer #3 · answered by MaqAtak 4 · 0⤊ 0⤋