Potentiometric FIA System with Reactor Based on Natural Urease Source and Tubular Detector of Ammonium Ions. Determination of Urea in Fertilizers

Analytical Sciences

Volumn 13, Issue 4, 1997, Pages 589-594

  Júnior, Laércio R ^a   Neto, Graciliano De Oliveira ^a   Lima, José L F C ^b   Montenegro, Maria C B S M ^b   Silva, Valdinete L ^c  

^a UNIVERSITY OF CAMPINAS   (Brazil)

^b UNIVERSITY OF PORTO   (Portugal)

^c FEDERAL UNIVERSITY OF PERNAMBUCO   (Brazil)

Author keywords

Canavalia brasiliensis; Fertilizer; Flow injection analysis; Potentiometry; Urea determination

Indexed keywords

AMMONIA; CHLORINE COMPOUNDS; FERTILIZERS; ION SELECTIVE ELECTRODES; IONS; METABOLISM; POLYVINYL CHLORIDES; POTENTIOMETERS (ELECTRIC MEASURING INSTRUMENTS); SODIUM HYDROXIDE; UREA;

ALKALINE SOLUTIONS; CANAVALIA BRASILIENSIS; CONCENTRATION RANGES; ENZYMATIC DEGRADATION; FLOW INJECTION ANALYSIS; POLYTETRAFLUOROETHYLENE MEMBRANES; POLYVINYL CHLORIDE (PVC); POTENTIOMETRY;

UREA FERTILIZERS;

EID: 0346914158     PISSN: 09106340     EISSN: None     Source Type: Journal    
DOI: 10.2116/analsci.13.589     Document Type: Article

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