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Dear Friend, Hello. Kindly, I need to know how to calculate the areas of S1, S2 and S3 regions in the below thermogravimetric curve. I have Origin 9.1 Thanks much
I am assuming you have a curve between areas S1 and S3. It might be easier to perform this operation if you create two lines, one at the base of the curve (between Areas S2 and S1) and one at the top of the curve (above area S3). I will simply call these curves A, B, C. I picked your curve with the digitizer so I could illustrate how to do this, if thats okhay with you.
For S1: select Curve B GO to Gadgets: Integrate In the Data exploration dialog that opens, go to the Baseline Tab and set the Mode as Use Existing Data Set and then use the arrow next to the Dataset font box to select the curve A.
For S2. Select Curve A Go to Gadgets: Integrate In the integrate gadget in the Baseline tab, set the Mode as Constant Y and then set the Y value as 0
For S3: Select Curve C Go to Gadgets: Integrate In the Baseline tab set Mode as Use Existing Dataset and use the arrow next to the Data box to select Curve B.
Calculation of area
Posted - 04/28/2014 : 11:49:11 AM
