Chlorophyll-a (chl-a)

Any RBRsolo⁴ or RBRduet⁴ that measures chlorophyll-a uses the RBR realtime chlorophyll-a sensor (see Fig. 10), designed to ensure sensitivity to low concentrations across the measurable range (0-500µg/L). During deployments, minimise direct sunlight by deploying the instrument with the detection window facing down.

SL4 product range shallow chla.png
Fig. 10.    RBRsolo⁴ chl-a | 2x: Chlorophyll-a sensor.

Optical

Parameter Value

Linearity, R2

0.99

Initial accuracy

5%

Chlorophyll-a

Parameter Value

Wavelength

470nm/695nm (excitation/emission)

Calibrated range1

0-50µg/L

Measurement range

0-500µg/L

Detection limit1

0.020µg/L

1 Scaled for the in vivo fluorescence response.