What is the Difference Between Packed Column and Capillary Column
The main difference between packed column and capillary column is that, in a packed column, the stationary phase is packed into the cavity of the column whereas, in a capillary column, the stationary phase coats the inner surface of the cavity of the column.Furthermore, we mainly use packed columns in liquid-liquid extractions and capillary columns in gas chromatography.
Packed column and capillary column are two types of columns used as the stationary phase during chromatographic extractions.