@article{2011, title={Ion-pair Formation between Cd(II), Na(I), and Ag(I) Complex Ions with 18-Crown-6 Ether Derivatives and Various Pairing Anions in Water: an Understanding of the Ion-pair Formation Based on the HSAB Principle}, author={Yoshihiro KUDO and Tsukasa KOIDE and Yujie ZHAO and Shoichi KATSUTA and Yasuyuki TAKEDA}, journal={Analytical Sciences}, volume={27}, number={12}, pages={1207-1207}, year={2011}, doi={10.2116/analsci.27.1207} }