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Biosensor - Model SMAlgal -Fluorescence BioSensor Systems
System of Measurement for Algae (SMA) is a small portable instrument to optically characterize the fluorescence emission and the optical density (correlated to a cell density) of algae culture (e.g Haematococcus pluvialis, Spirulina sp. Chlorella minutissima, etc.). It is possible to connect the SMA instument directly to a by-pass of a bioreactor to monitor the algae culture condition. Keyboard and display can be used to set-up the parameters. It is important to verify the cleaning procedures above all for OD measurements and the dark time for the fluorescence emission.
The biological material is introduced into a Delrin tube by a solenoid injection valve; optical sensors allow to measure the fluorescence emitted by chlorophyll inside the green algae cells in culture medium and the density of the these cells culture medium through a light transmission measurement. It is equipped with current measurement system, and an electronic control board for data read-out, processing and PC transfer.

