Potentiometric determination of urea by sequential injection using Jack bean meal crude extract as a source of urease

Talanta

Volumn 53, Issue 2, 2000, Pages 331-336

  Silva, Fernando V ^b   Nogueira, Ana Rita A ^a   Souza, Gilberto B ^a   Reis, Boaventura F ^b   Araújo, Alberto N ^c   Montenegro, Maria C M B S ^c   Lima, José L F C ^c  

^a EMBRAPA CERRADOS   (Brazil)

^b UNIVERSITY OF SÃO PAULO   (Brazil)

^c UNIVERSITY OF PORTO   (Portugal)

Author keywords

Ammonium tubular selective electrode; Crude extract; SIA; Urea

Indexed keywords

AMMONIUM COMPOUNDS; DIFFUSION; HYDROLYSIS; SOLUTIONS;

AMMONIUM TUBULAR SELECTIVE ELECTRODES; SEQUENTIAL INJECTION SYSTEMS;

UREA ELECTRODES;

AMMONIA; CANAVALIA ENSIFORMIS EXTRACT; PLANT EXTRACT; UNCLASSIFIED DRUG; UREA; UREASE;

ARTICLE; CHEMICAL COMPOSITION; ENVIRONMENTAL MONITORING; FLOW INJECTION ANALYSIS; GAS DIFFUSION; HYDROLYSIS; ION SELECTIVE ELECTRODE; POTENTIOMETRY;

EID: 0034327292     PISSN: 00399140     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0039-9140(00)00490-2     Document Type: Article

References (17)