| Multicommutation in flow analysis. Part 1. Binary sampling: concepts, instrumentation and spectrophotometric determination of iron in plant digests BF Reis, MF Giné, EAG Zagatto, JLFC Lima, RA Lapa Analytica Chimica Acta 293 (1-2), 129-138, 1994 | 447 | 1994 |
| Multicommutation in flow analysis: concepts, applications and trends FRP Rocha, BF Reis, EAG Zagatto, JLFC Lima, RAS Lapa, JLM Santos Analytica Chimica Acta 468 (1), 119-131, 2002 | 297 | 2002 |
| Multi-pumping in flow analysis: concepts, instrumentation, potentialities RAS Lapa, JLFC Lima, BF Reis, JLM Santos, EAG Zagatto Analytica Chimica Acta 466 (1), 125-132, 2002 | 267 | 2002 |
| Fluorimetric determination of isoniazid by oxidation with cerium (IV) in a multicommutated flow system RAS Lapa, JLFC Lima, JLM Santos Analytica chimica acta 419 (1), 17-23, 2000 | 128 | 2000 |
| A flow-batch titrator exploiting a one-dimensional optimisation algorithm for end point search RS Honorato, MCU Araújo, RAC Lima, EAG Zagatto, RAS Lapa, ... Analytica Chimica Acta 396 (1), 91-97, 1999 | 123 | 1999 |
| Toxicity assessment of ionic liquids with Vibrio fischeri: An alternative fully automated methodology SPF Costa, PCAG Pinto, RAS Lapa, MLMFS Saraiva Journal of Hazardous Materials 284, 136-142, 2015 | 78 | 2015 |
| Photochemical-fluorimetric determination of folic acid in a multicommutated flow system RAS Lapa, JLFC Lima, BF Reis, JLM Santos, EAG Zagatto Analytica chimica acta 351 (1-3), 223-228, 1997 | 76 | 1997 |
| Development of a sequential injection analysis system for the simultaneous biosensing of glucose and ethanol in bioreactor fermentation RAS Lapa, JLFC Lima, IVOS Pinto Food Chemistry 81 (1), 141-146, 2003 | 58 | 2003 |
| Construction and evaluation of ion selective electrodes for nitrate with a summing operational amplifier. Application to tobacco analysis R Pérez-Olmos, A Rios, JR Fernández, RAS Lapa, J Lima Talanta 53 (4), 741-748, 2001 | 54 | 2001 |
| Automatic potentiometric flow titration procedure for ascorbic acid determination in pharmaceutical formulations APS Paim, CMNV Almeida, BF Reis, RAS Lapa, EAG Zagatto, JLFC Lima Journal of pharmaceutical and biomedical analysis 28 (6), 1221-1225, 2002 | 48 | 2002 |
| Dual-stopped-flow spectrophotometric determination of amiloride hydrochloride in a multicommutated flow system RAS Lapa, JLFC Lima, JLM Santos Analytica chimica acta 407 (1-2), 225-231, 2000 | 46 | 2000 |
| A multicommutated flow system with on-line compensation of the Schlieren effect applied to the spectrophotometric determination of pindolol RAS Lapa, JLFC Lima, BF Reis, JLM Santos, EAG Zagatto Analytica chimica acta 366 (1-3), 209-215, 1998 | 45 | 1998 |
| Construction and evaluation of ion selective electrodes for perchlorate with a summing operational amplifier: application to pyrotechnics mixtures analysis R Pérez-Olmos, A Rios, MP Martín, RAS Lapa, JLFC Lima Analyst 124 (1), 97-100, 1999 | 40 | 1999 |
| Chemiluminometric determination of carvedilol in a multi-pumping flow system CK Pires, KL Marques, JLM Santos, RAS Lapa, JLFC Lima, EAG Zagatto Talanta 68 (2), 239-244, 2005 | 38 | 2005 |
| An automatic titrator based on a multicommutated unsegmented flow system: its application to acid–base titrations CMNV Almeida, RAS Lapa, JLFC Lima, EAG Zagatto, MCU Araújo Analytica chimica acta 407 (1-2), 213-223, 2000 | 38 | 2000 |
| Automatic flow system with voltammetric detection for diacetyl monitoring during brewing process PG Rodrigues, JA Rodrigues, AA Barros, RAS Lapa, JLFC Lima, ... Journal of agricultural and food chemistry 50 (13), 3647-3653, 2002 | 37 | 2002 |
| Simultaneous determination of nitrite, nitrate, sulphate and phenolic compounds, by sequential injection analysis, in wastewaters RAS Lapa, JLFC Lima, I Pinto Analusis 28 (4), 295-301, 2000 | 35 | 2000 |
| Construction of calcium ion-selective electrodes without inner reference solution-an application to calcium and magnesium determinations in parenteral and hemodialysis solution RAS Lapa, JLFC Lima, AMR DASILVA Farmaco 45 (7-8), 901-913, 1990 | 32 | 1990 |
| Simultaneous automatic potentiometric determination of acidity, chloride and fluoride in vinegar RAS Lapa, JLFC Lima, R Pérez-Olmos, MP Ruiz Food Control 6 (3), 155-159, 1995 | 30 | 1995 |
| Development of a tubular fluoride potentiometric detector for flow analysis: Evaluation and analytical applications JR Santos, RAS Lapa, JLFC Lima Analytica chimica acta 583 (2), 429-436, 2007 | 27 | 2007 |