Use of 1,5-bis(di-2-pyridyl)methylene thiocarbohydrazide immobilized on silica gel for automated preconcentration and selective determination of antimony(III) by flow-injection electrothermal atomic absorption spectrometry. - Ojeda, C. Bosch; Rojas, F. Sánchez; Pavón, J. M. Cano; Martín, L. Terrer (Analytical & Bioanalytical Chemistry, 2005)