I am planning to work on the estimation of high temp. boiling point organic substances.
In this connection, I need high temperature GC column.
Both Packed and Capillary.
Can you pl suggest few packed and capillary column with the max temp of 400 deg C.
Dimethyl Siloxane based stationary phases or equivalent. .
Stationary Phase made up of the HPLC column material : Bonded; poly(50% n-octyl/50% methyl siloxane) can be used for high b.p. liquids.
Major factors based on which a column material/stationary phase is chosen for a particular gas chromatographic (gc) separation are:
a) Boiling Point (bp) of the sample to be separated and that of impurities present
b) Polarity of the sample, that of the impurities and that of the column material as well.
c) Thermal stability of the column material is also required to be taken into consideration while making a choice for the column material.
In addition to the above information, I would like to share with you that you may consider capillary columns as well. These are much more efficient in separation, compared to packed columns.
Hope, these basic principles will be of some help for you as guiding principles for making your decision.
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