Spectrophotometric determination of bromate in water using multisyringe flow injection analysis

Autor:	Marcela A. Segundo, José L. F. C. Lima, António O. S. S. Rangel, Víctor Cerdà, Sara M. Oliveira
Přispěvatelé:	Veritati - Repositório Institucional da Universidade Católica Portuguesa
Jazyk:	angličtina
Rok vydání:	2011
Předmět:	Flow injection analysis Detection limit Chromatography medicine.diagnostic_test Biochemistry (medical) Clinical Biochemistry Hypochlorite Water Thioridazine Multisyringe flow injection analysis Bromate Biochemistry Analytical Chemistry chemistry.chemical_compound chemistry Phenothiazines Spectrophotometry Phenothiazine Electrochemistry medicine Nitrite Spectroscopy medicine.drug
Zdroj:	Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) instacron:RCAAP
ISSN:	1532-236X 0003-2719
Popis:	A multisyringe flow injection system for the spectrophotometric determination of bromate in water is proposed, based on the oxidation of phenothiazine compounds by bromate in acidic medium. Several phenothiazines were tested, including chlorpromazine, trifluoperazine, and thioridazine. Higher sensitivity and lower LOD were attained for chlorpromazine. Interference from nitrite, hypochlorite, and chlorite was eliminated in-line, without any changes in the manifold. The automatic methodology using chlorpromazine allowed the determination of bromate between 25 and 750 µg L−1, with LOD of 6 µg L−1, good precision (RSD
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21dcfedaa5a0e4110a32d8a8902e2258 https://ciencia.ucp.pt/en/publications/45abb514-9145-4100-8fcc-d2289671c107 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
Nepřihlášeným uživatelům se plný text nezobrazuje	K zobrazení výsledku je třeba se přihlásit.