DSC principle
Scanning microcalorimetry DSC - Food applications
Article REF: P1270 V1
DSC principle
Scanning microcalorimetry DSC - Food applications

Author : Perla RELKIN

Publication date: December 10, 2006 | Lire en français

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2. DSC principle

When a system undergoes a transformation reaction under the effect of a heating or cooling program, its temperature evolves differently from that of a heat-inert material. Differential microcalorimetry measures the temperature difference (Δ T ) between the reacting material (sample e) and the inert material (reference r). This is proportional to the heat exchanged during the reaction:

Q = mC p Δ T

with :

Q
 : 
quantity of heat exchanged (J)
ΔT
 : 
temperature difference (K)
...
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