I've test TGA and plotted that, but the result of weight loss didnt start from 100, why this is happen? And how can i compare this with other variable??
If your Cu-MOF sample has loosely bound solvent molecules (e.g., water or organic solvents from synthesis), they may evaporate as the analysis starts, causing the initial weight to appear lower, and errors in the initial weighing of the sample can also lead to a discrepancy
Dear Shofia Khoirunnisa,
You are absolutely right. The initial weight of the sample should be set to 100 wt%. The TGA of Cu-MOF indicates a weight of 34% at the start temperature (50 degrees Celsius), suggesting an issue with the thermogravimetry instrument. It is advisable to calibrate the TG instrument before recording the thermogram of your sample.
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