Chromatography Forum

I have one column with following description.

Support - CH-W-HP
liquid phase - SE.30
mesh size - 60/80
max opt temp. - 300 C
weight - 20%
Length - 6feet.
OD - 1/8 inch
ID - 2.1 mm

I want to know the details of this column like.

polarity of column
name of column.
whether water is separable in this ?
whether acetaldehyde is separable in this ?

This might help you:

http://delloyd.50megs.com/moreinfo/gcphases.html

Looks like SE-30 is a nonpolar phase (like DB-1, HP-1, SPB-1, Rtx-1, ZB-1, you choose the vendor).

Your last couple of questions are tough to answer. Water will not like this phase so it probably won't lay down well after injection. Your water peak will be a blob. Separate AA from what? We use a 1-phase to separate AA from methane:ethane:butane:pentane in beverage-grade CO2 but you probably wouldn't choose it to determine AA in an alcoholic beverage.

Hi

As rb6banjo said

Your packed column is a non-polar 100% dimethylpolysiloxane phase with a very high loading at 20% - high bleed unless using a balancing column

In answer to your queries
polarity of column - non-polar
name of column. it has no name
whether water is separable in this ? No, but possible to do aqueous injections under the right conditions
whether acetaldehyde is separable in this ? Not the best phase but depends on what your sample is and separable from what and in what and what is your detector?

Some more details would be helpful

Regards

Ralph

See this information. It is a J&W column, now sold by Agilent.

http://www.agilent.com/en-us/products/g ... e-30-se-54