Diol Column Plates for Solid Phase Extraction

B&M® Diol is a silica gel-based extraction column with separation properties similar to silica gel. It extracts polar samples from nonpolar solutions through polar interaction, is similar to silica gel without bonds in the nature of the interaction of hydrogen bonds with the sample, and can distinguish structurally similar compounds such as structural isomers, as well as silica gel columns. It can also be used to isolate nonpolar compounds, since carbon chains in the bound phase provide sufficient nonpolar force to hold hydrophobic samples, and has a different selectivity with respect to silica gel with respect to solvent ratios.  Diol is commonly used to isolate drugs or metabolites, such as THC, from biological solutions, such as urine samples. It is equivalent to Agilent Bond Elut 2OH and Waters Sep-Pak Diol.