carbon load on columns

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mohd
mohd's picture
carbon load on columns

dear sir
what is the meaninig of carbon load on a column.
if carbon load on a column is 8.0% what does it indicates.

Dr. Analytical
Dr. Analytical's picture
Carbon load is the percent by

Carbon load is the percent by weight of carbon on the stationary phase.  It measures how much organic material has been chemically attached to the surface of silica.  For a reversed phase column, more carbon load usually means more retention for nonpolar compounds.

It is used to compare phases for their ability to retain nonpolar compounds, but more carbon does not always mean that you get a better separation.  You could use it to compare the general characteristics of two columns - if they have similar carbon loads, then they may produce similar results.  But I do not think this value is very useful.

ahsan
ahsan's picture
Actually i am doing a mini

Actually i am doing a mini project on the topic of clean development mechanism and i also want to describe the carbon load and its all aspects specially how to calculate it and its statistical data
i will be very thankful to you for this cooperation
Thanx

Dr. Analytical
Dr. Analytical's picture
Please explain what you mean

Please explain what you mean by "clean development mechanism." 

The original question was about the carbon that is bonded to the surface of an HPLC stationary phase.  is your question related to this same topic?

Dilip Sharma
Dilip Sharma's picture
carbon load

is there any king of limitation in carbon load? if any?