Potentiometric microdetermination of phosphate, arsenate and sulfide
Egyptian Journal of Chemistry. 1991; 34 (2): 121-9
em Inglês
| IMEMR
| ID: emr-107474
ABSTRACT
For mercuri-gravi-potentiometric microdetermination of phosphate, arsenate and sulfide, optimum conditions have been investigated for their precipitation with cations of Th [IV], Fe [III] and Hg [II] respectively. Excess EDTA was then added to react with unreacted cation and the remaining EDTA was finally back titrated with Hg [II] using silver amalgam and SCE combination. For microdetermination of these anions, the standard deviation, coefficient of variation, and percentage recovery were calculated indicating the high accuracy and reliability of the applied procedures. There is a significant correlation between suggested and standard procedures which confirmed by F and t tests
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Índice:
IMEMR (Mediterrâneo Oriental)
Assunto principal:
Fosfatos
/
Arseniatos
/
Sulfetos
Idioma:
Inglês
Revista:
Egypt. J. Chem.
Ano de publicação:
1991
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