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Chlorophyll content of the Lemna minor extracted in ethanol

Source of the photo
BME ABÉT
Author of the description
VE
Lemna minor

The duckweeds belonging to a given sample are placed into test tubes with covers and 5 ml of 96% ethanol is added to it. The samples are then kept for 24 hours at room temperature in the dark. After one day the optical density of each sample is measured by Sanyo SP55 UV/VIS spectrophotometer.

Duckweed (Lemna minor) growth inhibition test (based on frond counts and chlorophyll content) for ecotoxicity assessment of water samples (surface and groundwater, leachate and waste water) according to OECD 221