The Turner Designs Model 10 fluorometer (manufactured by Turner Designs, turnerdesigns.com, Sunnyvale, CA, USA) is used to measure Chlorophyll fluorescence. No information could be found for this specific model.
Turner Designs benchtop fluorometer model 10-000. This fluorometer was used for all chlorophyll a measurements. The instrument was calibrated annually using spinach leaf extract calibrated following the trichromatic method as described by Stainton et al. (1977).
Extracted samples were warmed to room temperature in the dark and analyzed on a Turner Designs model 10 fluorometer calibrated against a pure Chla standard (Strickland and Parsons, 1972).