@article{oai:nitech.repo.nii.ac.jp:00003536,
 author = {Hattori, Hiroyuki and Komiya, Shigeki and Yuchi, Akio},
 journal = {Proceedings of IUPAC International Congress on Analytical Sciences 2001 (ICAS 2001)},
 month = {},
 note = {The performance of tetravalent metal complexes with tetraphenylporphine (H2tpp) as ionophores for ion-selective electrodes was studied. In the case of [MO(tpp)] (M: Ti, V), protonation to the oxo group is responsible for pH response, and anionic response following a Hofmeister series is ascribed to their coextraction as counter anions. In the case of [M(tpp)Cl2] (M: Zr, Hf), replacement of chloride with anions including OH- is responsible for pH and anionic responses, and Lewis acid-base interactions produce preferential response to F-, NO2 -, and acetate. The [Zr(tpp)Cl2]-based electrode was successfully used for potentiometry of acetic acid in rice vinegar., application/pdf},
 pages = {i1353--i1356},
 title = {Anion-Selective Electrodes Based on Porphyrin Complexes of Tetravalent Metal Ions},
 year = {2001}
}