New enzyme sensor for sulfite analysis in sea and river water samples

✍ Scribed by L. Campanella; P. Cipriani; T.M. Martini; M.P. Sammartino; M. Tomassetti

• Book ID: 102984580
• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 909 KB
• Volume: 305
• Category: Article
• ISSN: 0003-2670
• DOI: 10.1016/0003-2670(94)00530-y

✦ Synopsis

A new sulfite oxidase enzyme electrode for sulfite analysis in sea and river water samples was developed. The biosensor was constructed by coupling an oxygen sensor to a nylon membrane with the enzyme chemically immobilized on it. Measurement on standard solutions and in matrices of environmental interest were carried out both under steady-state and flow conditions. The possibility of employing fructose as stabilizing agent for sulfite both for standard solutions and aqueous environmental samples was also studied.