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- Title
A simple manifold flow injection analysis for determining phosphorus in the presence of arsenate.
- Authors
Gerez, V.; Rondano, K.; Pasquali, C.
- Abstract
A simple manifold flow injection analysis (FIA) for determining phosphorus in the presence of arsenate in water, by the on-line reduction of As(V) to As(III) using sodium sulfite. The FIA method is applicable for the determination of phosphorus in water samples containing less than 0.37 μg·mL of AsO. A solution obtained by mixing 6.30 g of Na SO (1 M), 5.0 ml HSO 18 M completed up to 50 ml with deionized distilled water was used to reduce on line As(V) to As(III), using a reactor of 0.30 m. The limit of detection is 0.05584 ± 0.00167 μg·mL P-PO and sampling frequency is 45 samples per hour. It is a simple and low cost methodology, easily applicable in the determination of phosphorus in samples of water contaminated with arsenate.
- Subjects
FLOW injection analysis; PHOSPHORUS; ARSENATES; SODIUM sulfites; WATER sampling; WATER pollution
- Publication
Journal of Water Chemistry & Technology, 2014, Vol 36, Issue 1, p19
- ISSN
1063-455X
- Publication type
Article
- DOI
10.3103/S1063455X14010032