Authors: Lapa, RAS Lima, JLFC Pinto, IVOS

Citation: Ras. Lapa et al., Sequential injection analysis-based system for on-line monitoring of nitrite and nitrate in wastewaters, ANAL SCI, 16(11), 2000, pp. 1157-1160

Authors: Lapa, RAS Lima, JLFC Pinto, IVOS

Citation: Ras. Lapa et al., Simultaneous determination of nitrite, nitrate, sulphate and phenolic compounds, by sequential injection analysis, in wastewaters, ANALUSIS, 28(4), 2000, pp. 295-301

Authors: Lapa, RAS Lima, JLFC Pinto, IVOS

Citation: Ras. Lapa et al., Determination of phenolic compounds in waste waters by sequential injection analysis and spectrophometry, INT J ENV A, 76(1), 2000, pp. 69-76

Authors: Lapa, RAS Lima, JLFC Pinto, IVOS

Citation: Ras. Lapa et al., Sequential injection analysis determination of sulphate in wastewaters by ultraviolet-spectrophotometry, J BRAZ CHEM, 11(2), 2000, pp. 170-174