| http://www.w3.org/ns/prov#value | - In addition, the column is a silica or organic polymer-based C4, C8 or Cl 8 column having a porosity of at least 125 ???, preferably 300 ???, and a particle size of at least 2 ??m, preferably 5 ??m. [0046] Other features and advantages of the invention will be apparent from the following description of the preferred embodiments thereof, and from the claims.
|
