TY - JOUR
T1 - Lead selective electrodes based on thioamide functionalized calix[4]arenes as ionophores
AU - Malinowska, Elz˙bieta
AU - Brzozka, Zbigniew
AU - Kasiura, Krzysztof
AU - Egberink, Richard J.M.
AU - Reinhoudt, David
PY - 1994
Y1 - 1994
N2 - Lead selective electrodes based on a di- and tetrathioamide functionalized calix [4] arene as ionophores were investigated. The Pb(II)-response functions exhibited almost theoretical Nernstian slopes in the activity range 10¿6¿10¿2M of lead ions. For both ionophores a preference for lead over other cations was observed. The best results were obtained for membranes containing the tetrathioamide derivative (ionophore 1), potassium tetrakis(4-chlorophenyl) borate and o-nitrophenyl octyl ether as a plasticizer. This electrode showed greatly improved selectivity over copper, zinc and cadmium ions as compared with commercial solid-state lead selective electrodes.
AB - Lead selective electrodes based on a di- and tetrathioamide functionalized calix [4] arene as ionophores were investigated. The Pb(II)-response functions exhibited almost theoretical Nernstian slopes in the activity range 10¿6¿10¿2M of lead ions. For both ionophores a preference for lead over other cations was observed. The best results were obtained for membranes containing the tetrathioamide derivative (ionophore 1), potassium tetrakis(4-chlorophenyl) borate and o-nitrophenyl octyl ether as a plasticizer. This electrode showed greatly improved selectivity over copper, zinc and cadmium ions as compared with commercial solid-state lead selective electrodes.
KW - IR-57358
U2 - 10.1016/0003-2670(94)00266-5
DO - 10.1016/0003-2670(94)00266-5
M3 - Article
SN - 0003-2670
VL - 298
SP - 253
EP - 258
JO - Analytica chimica acta
JF - Analytica chimica acta
IS - 2
ER -