The extraction of the dicyandiamide compound from water by
SPE is difficult because of its strong polarity. Therefore we
studied the SPE for dicyandiamide precisely using various
polymeric adsorbent materials. The strong cation exchange
mode-sulfonic acid group SPE cartridges, such as Oasis MCX
(Mixed-mode Cation Exchange, Waters Corporation, Milford,
MA, USA), proElut PXC (Mixed-mode Cation Exchange, Dikma
Technologies Inc., Lake Forest,CA,USA), and proElut SPE (Ion