By Anonymous on Tuesday, June 29, 2004 - 05:55 am:

Hello Friends'

Can any one explain to me what precuations to be taken in regenerating packed columns, espically molecular sieves column.

With Thanks
jeevan

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By Anonymous on Tuesday, June 29, 2004 - 08:27 am:

heat with carrier gas flowing

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By Anonymous on Tuesday, June 29, 2004 - 06:26 pm:

You need to install the column in a GC oven, detector connection is not recommended, buy may be used to monitor baseline. Set the column carrier flow to at least 30ml/min with helium. Raise the oven temperature to 300°C. Condition the colum for 2-4 hours. Do not over condition the column (too hot or too long), carbon monoxide peak may begin to tail slightly if you over condition the column.

Good Luck,

Omar