ISSN:
1618-2650
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract A biosensor is described for the detection of triazine and phenylurea herbicides in drinking water by kinetic measurements of endogenous chlorophyll fluorescence in isolated chloroplasts from higher plants. The pocket-size device uses a diode laser for simultaneous excitation of sample and reference channels, and photodiodes for detection of the emitted light. The biological material can be supplied as a freeze-dried powder, stable for 21 days at room temperature, for 6 weeks at 4 °C or for at least 9 months at −20 °C. The detection of 0.1 μg/l of a single herbicide, as required by European Community legislation on drinking water quality, can be achieved without prior extraction of the sample.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s0021663540299
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