Phase-selective alternating current polarographic assay of methotrexate in human serum

A. J. Miranda Ordieres, A. Costa García, J. M. Fernández Alvarez, P. Tuñón Blanco

Anal. Chim. Acta, 233, 1990, 281-287

doi: 10.1016/S0003-2670(00)83489-3