Sequential injection system exploring the standard addition method for phosphate determination in high salinity samples: interstitial, transitional and coastal waters

• Tipo: Artigo em Revista Científica Internacional
• Data: 2012

Autores

Ribeiro Mesquita, RBR (Autor) Outra; Santos, IC (Autor) Outra; Adriano Bordalo (Autor) ICBAS; Santos Silva Rangel, AOSS (Autor) Outra

Revista

Título: Analytical Methods

Vol. 4

Páginas: 1452-1457

ISSN: 1759-9660

Editora: Royal Society of Chemistry

Indexação

ISI Web of Knowledge - 3 Citações

Scopus - 3 Citações

Outras Informações

ID Authenticus: P-002-AK6

DOI: 10.1039/c2ay05792a

Abstract (EN): A sequential injection system for phosphate determination within a wide concentration range was developed for water samples with high salinity levels. The determination is based on molybdenum blue chemistry using the standard addition quantification method. The detection system included a multi-reflective flow cell coupled to a light emitting diode, enabling the minimization of the schlieren effect. The developed system gave a LOD of 0.3 mu mol P L-1 and LOQ of 1.1 mu mol P L-1 with a sample consumption of 125 mu L. A determination rate of about 30 h(-1) was obtained, and the developed method was effectively applied to interstitial, transitional and coastal waters.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6