SampliQ SPE 

SampliQ C18 ODS products are based on bonded, reversed phase (octadecylsilane), irregular, silica gel (silica) particles. This non-polar, non-endcapped sorbent provides additional polar interactions associated with the surface silanol groups. It also enhances retention of basic compounds compared with the corresponding endcapped sorbent. It is recommended as a general purpose SPE phase for both polar and non-polar analytes.