The SH-CP-2 column is a weak acid cation exchange column produced by SHINE. The matrix is a styrene-divinylbenzene polymer with a cross linking degree of 55%, and the surface is grafted with carboxyl groups. The SH-CP-2 column can be used for conventional cation analysis using non-suppressed or suppressed conductivity methods, enabling the simultaneous analysis of six common cations: Li+, Na+, NH4+, K+, Mg2+, and Ca2+. Under specific conditions, it can directly perform conductivity analysis of certain transition metal cations.