Naphthalene detection by a bioluminescence sensor applied to wastewater samples
| Autor: | Belkis Valdman, Fernando Battaglini, E. Valdman, Selma Gomes Ferreira Leite |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Chromatography
biology Chemistry Metals and Alloys Pseudomonas fluorescens Contamination Condensed Matter Physics biology.organism_classification Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry.chemical_compound Wastewater Environmental chemistry Materials Chemistry Bioluminescence Sewage treatment Electrical and Electronic Engineering Instrumentation Effluent Biosensor Naphthalene |
| Zdroj: | Sensors and Actuators B: Chemical. 103:7-12 |
| ISSN: | 0925-4005 |
| DOI: | 10.1016/j.snb.2004.01.017 |
| Popis: | A bioluminescence detection system using Pseudomonas fluorescens HK44 was applied for naphthalene measurement in the range 0–0.5 mg l−1, lower than the maximum of 1 mg l−1 recommended by EPA. Diluted sample injections of naphthalene were added to 0.2 or 0.4 g l−1 cellular concentrations used in the detection medium. The lowest cell density (0.2 g l−1) exhibited a linear response up to naphthalene concentration of about 0.4 mg l−1 being selected to be used in the subsequent experiments. The same system was applied to samples of influent and effluent streams of a biological wastewater treatment from a petroleum industry containing 2.4 and 1.1 mg hydrocarbons l−1, respectively, including naphthalene. The output signal of the biosensor system for the influent stream sample was fully compatible with the results obtained for the naphthalene solutions. Results obtained with the effluent sample showed that other contaminants than naphthalene may influence the biosensor response and are under investigations. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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