Rui Alexandre Santos Lapa


AuthID: R-000-FRS

Confirmed Publications: 58



41
TITLE: Construction and evaluation of a tubular ion-selective electrode for hydrogen ion as a detector in flow analysis.  Full Text
AUTHORS: Martelli, PB; Reis, BF; Zagatto, EAG; Lima, JLFC ; Lapa, RA ;
PUBLISHED: 1998, SOURCE: QUIMICA NOVA, VOLUME: 21, ISSUE: 2
INDEXED IN: Scopus WOS
42
TITLE: Construction and evaluation of ion-selective electrodes for potassium and calcium with a summing operational amplifier. Application to wine analysis
AUTHORS: Perez Olmos, R; Rios, A; Lapa, RAS ; Lima, JLFC ;
PUBLISHED: 1998, SOURCE: FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY, VOLUME: 360, ISSUE: 6
INDEXED IN: Scopus WOS CrossRef
43
TITLE: Continuous sample recirculation in an opened-loop multicommutated flow system  Full Text
AUTHORS: Lapa, RAS ; Lima, JLFC ; Reis, BF; Santos, JLM ;
PUBLISHED: 1998, SOURCE: ANALYTICA CHIMICA ACTA, VOLUME: 377, ISSUE: 1
INDEXED IN: Scopus WOS CrossRef
44
TITLE: An inexpensive flow photometer for clinical analysis based on a bicolour light emitting diode.  Full Text
AUTHORS: Araujo, MCU; Santos, SRB; Silva, EA; Veras, G; Lima, JLFC ; Lapa, RAS ;
PUBLISHED: 1997, SOURCE: QUIMICA NOVA, VOLUME: 20, ISSUE: 2
INDEXED IN: Scopus WOS
45
TITLE: Determination of low levels of nitrates in natural waters by direct potentiometry using an ion selective electrode of improved sensitivity  Full Text
AUTHORS: Lapa, RAS ; Lima, JLFC ; Barrado, E; Vela, H;
PUBLISHED: 1997, SOURCE: INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY, VOLUME: 66, ISSUE: 1
INDEXED IN: Scopus WOS CrossRef
46
TITLE: Photochemical-fluorimetric determination of folic acid in a multicommutated flow system  Full Text
AUTHORS: Lapa, RAS ; Lima, JLFC ; Reis, BF; Santos, JLM ; Zagatto, EAG;
PUBLISHED: 1997, SOURCE: ANALYTICA CHIMICA ACTA, VOLUME: 351, ISSUE: 1-3
INDEXED IN: Scopus WOS CrossRef
47
TITLE: Potentiometric determination of chloride in parenteral and haemodialysis solutions by FIA  Full Text
AUTHORS: Lapa, RAS ; Lima, JLFC ; Barrado, E; Vela, H;
PUBLISHED: 1997, SOURCE: FARMACO, VOLUME: 52, ISSUE: 2
INDEXED IN: Scopus WOS
48
TITLE: Sequential determination of calcium and magnesium cations in haemodialysis solutions by FIA  Full Text
AUTHORS: Lapa, RAS ; Lima, JLFC ; Vela, MH; Barrado, E;
PUBLISHED: 1997, SOURCE: ANALYTICAL SCIENCES, VOLUME: 13, ISSUE: 3
INDEXED IN: Scopus WOS CrossRef
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