240
and requires large gradients. It is the choice for many DOSY
experiments.
The intensity of the signal depends on Δ, δ, and g and is given
by the formula
I
I o
e g
Mn
Mo
( )= ( )
−
−∆
∆
2 2
3
δ
δ ,
(3)
where I is the observed intensity or magnetization (Mn), Io is the
unattenuated reference signal intensity or magnetization (Mo),
and γ is the gyromagnetic ratio. If dipolar gradients are used for
dephasing and rephasing a correction for the time τ between those
bipolar gradients is inserted [12]:
I
I o
e g
Mn
Mo
( )= ( )
− −
−∆
∆
2 2
3 2
δ
δ τ .
Fig. 4 Pulse sequence for a 2D DOSY experiment
Christos M. Chatzigiannis et al.
and requires large gradients. It is the choice for many DOSY
experiments.
The intensity of the signal depends on Δ, δ, and g and is given
by the formula
I
I o
e g
Mn
Mo
( )= ( )
−
−∆
∆
2 2
3
δ
δ ,
(3)
where I is the observed intensity or magnetization (Mn), Io is the
unattenuated reference signal intensity or magnetization (Mo),
and γ is the gyromagnetic ratio. If dipolar gradients are used for
dephasing and rephasing a correction for the time τ between those
bipolar gradients is inserted [12]:
I
I o
e g
Mn
Mo
( )= ( )
− −
−∆
∆
2 2
3 2
δ
δ τ .
Fig. 4 Pulse sequence for a 2D DOSY experiment
Christos M. Chatzigiannis et al.