Optimization of the ESI and APCI experimental variables for the LC/MS determination of s-triazines, methylcarbamates, organophosphorous, benzimidazoles, carboxamide and phenylurea compounds in orange samples - Titato, Guilherme Miola; Bicudo, Rogério de Campos; Lanças, Fernando Mauro (Journal of Mass Sepctrometry, 2007)