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Principle of dynamic luminescence method:
Where:
I: Luminescence intensity in presence of oxygen
I
: Luminescence intensity in absence of oxygen
0
τ: Luminescence decay time in presence of oxygen
: Luminescence decay time in absence of oxygen
τ
0
KSV: Stern-Volmer constant (quantifies the quenching efficiency and
therefore the sensitivity of the sensor)
[O
]: Oxygen content
2
Principle of dynamic quenching of luminescence by molecular oxygen
(1) Luminescence process in absence of oxygen
(2) Deactivation of the luminescent indicator molecule by molecular oxygen
S423/C/OPT Optical Oxygen Probe – Data Sheet
S
4
2
3
S
4
2
3
O
x
O
x
I
/I = T
/T= 1+Ksv*O
0
0
I=f(O
)
T=f(O
2
/
C
/
O
P
T
O
p
/
C
/
O
P
T
O
p
y
g
e
n
P
r
o
b
y
g
e
n
P
r
o
b
2
)
2
t
i
c
a
l
t
i
c
a
l
e
e
D
a
t
a
S
h
e
e
t
D
a
t
a
S
h
e
e
t
10
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