Differential Scanning Calorimetry (DSC)
Differential Scanning Calorimetry (DSC)
Differential Scanning Calorimetry (DSC)
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Conventional <strong>DSC</strong> Cp Measurement<br />
Cp = K x<br />
HFS<br />
– HFMT<br />
Heat Rate x wt<br />
Where:<br />
K = Calibration constant<br />
HFS = <strong>Differential</strong> heat flow<br />
with sample<br />
HFMT = <strong>Differential</strong> heat flow<br />
with empty pans<br />
wt = weight of sample<br />
0<br />
HF<br />
�<br />
endo<br />
Alternative <strong>DSC</strong> Cp Measurement<br />
Cp<br />
=<br />
K x<br />
HF<br />
(HR<br />
HR2<br />
2<br />
– HF<br />
– HR1)<br />
HR1<br />
wt<br />
Where:<br />
K = Calibration constant<br />
HFHR1 = <strong>Differential</strong> heat flow of<br />
sample at HR1 HFHR2 = <strong>Differential</strong> heat flow of<br />
sample at HR2 HR2 = Heating rate 2<br />
= Heating rate 1<br />
HR 1<br />
0<br />
HF<br />
�<br />
endo<br />
HF MT<br />
HF S<br />
Temp.<br />
Temp.<br />
HF HR1<br />
HF HR2
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