1.
Talanta
; 36(7): 792-3, 1989 Jul.
Artigo
em Inglês
| MEDLINE
| ID: mdl-18964807
RESUMO
An indirect titrimetric method for determination of phosphate is based on precipitation with excess of bismuth, and titration of the surplus with chloranilic acid, the end-point being determined biamperometrically.
2.
Talanta
; 34(6): 551-4, 1987 Jun.
Artigo
em Inglês
| MEDLINE
| ID: mdl-18964357
RESUMO
A voltammetric cell with a graphite-paste cathode and silver-wire anode was designed for dissolved oxygen determinations in water. Its most important features were evaluated in laboratory and field studies. Several advantages such as higher sensitivity, wider linear response interval, negligible interference due to carbon dioxide, and shorter response time, besides its low cost and simple construction, were found when it was compared with sensors having a platinum cathode.