Fiber optic biosensor using chlorella vulgaris for determination of toxic compounds. - Mines Saint-Étienne Access content directly
Journal Articles Ecotoxicology and Environmental Safety Year : 2000

Fiber optic biosensor using chlorella vulgaris for determination of toxic compounds.

Abstract

A new biosensor is constructed for the detection of some herbicides based on kinetic measurements of chlorophyll-a fluorescence in Chlorella vulgaris cells. The microalgae are immobilized on removable membranes placed in front of the tip of an optical fiber bundle inside a homemade microcell. C. vulgaris was easily cultivated in laboratory and very sensitive to herbicides that effect the photosynthesis process. The reponse of the algal biosensor is studied in terms of detection limits, reversibility, and long-term activity. The effects of temperature and pH are also reported. The biosensor can be used to measure the concentration of toxic chemical in the form of a single drop or dissolved in cide as is required by European Community legislation for drinking water is possible with this algal biosensor especially for atrazine, simazine and diuron.
No file

Dates and versions

emse-00494383 , version 1 (23-06-2010)

Identifiers

  • HAL Id : emse-00494383 , version 1

Cite

Martine Naessens, Jean-Claude Leclerc, Canh Tran-Minh. Fiber optic biosensor using chlorella vulgaris for determination of toxic compounds.. Ecotoxicology and Environmental Safety, 2000, 46, pp.181-185. ⟨emse-00494383⟩
48 View
0 Download

Share

Gmail Facebook X LinkedIn More