Photon Systems Instruments FMT150 - Page 13

© PSI (Photon Systems Instruments), spol. s r. o.
13
List of parameters measured and/or calculated by the Photobioreactor FMT150:
Symbol
Name
Description
F
t
(Dark)
Instantaneous fluorescence in the
dark
Instantaneous F-yield in dark equals F
0
F
t
= F
0
(in dark-adapted sample)
F
t
(Light)
Instantaneous fluorescence in the
light
Instantaneous F-yield in light that results from a dynamic
equilibrium of plastoquinone reducing and re-oxidizing
processes and from non-photochemical quenching
F
t
= F
s
(in light-adapted sample)
F
M
(Dark)
Maximum fluorescence in dark-
adapted state
Maximum F-yield with Q
A
reduced (q
P
=0) and non-
photochemical quenching relaxed (NPQ=0)
F
M
(Light)
Maximum fluorescence in light-
adapted state
Maximum F-yield with Q
A
reduced (q
P
=0) and non-
photochemical quenching active (NPQ≠0)
F
V
Maximum variable fluorescence
F
V
= F
M
- F
0
QY (Dark)
Instantaneous PSII quantum yield
in the dark
Effective PSII quantum yield
QY= F
V /
F
M
(dark-adapted sample)
QY (Light)
Instantaneous PSII quantum yield
in the light
Effective PSII quantum yield relaxing in light
QY= F
V
’ / F
M
’ (light-adapted sample)
OD
680
Optical density at 680 nm
Optical density representing light scattering and chlorophyll
absorption.
OD
720
Optical density at 720 nm
Optical density representing light scattering.
pH
pH
pH is the negative logarithm of the hydrogen ion
concentration in the medium.
[O
2
]
Oxygen concentration
Concentration of dissolved oxygen.
[CO
2
]
Carbon dioxide concentration
Concentration of dissolved carbon dioxide. CO
2
partial
pressure is calculated using the measured pH and the
temperature.
Tab. 3 FMT150 measured parameters.