Unraveling the mysterious role of palladium in feigl bis(dimethylglyoximate)nickel(II) spot tests by means of confocal raman microscopy - Huila, Manuel Fernando Gonzalez; Lukin, Nikolas; Parússulo, André Luis Araújo; Oliveira, Pedro Vitoriano de; Kyohara, Pedro K; Araki, Koiti; Toma, Henrique Eisi (Analytical Chemistry, 2012)