Welchrom® Diol is a kind of polar adsorbent that its silica matrix bonded diol. According to the different activation conditions and matrix conditions of the samples, it may show weak non-polar interaction, and extract non-polar substances from the water-based samples. In most cases, it is used as polar adsorbent whose polar effect is similar to that of unbonded silica gel to extract polar molecules from non-polar solvents. Isomers and other structurally similar compounds also can be separated by it
