I am trying to take the TGA data of my sample. However when I get data from instrument Shimadzu's TGA-50. The data is very noisy in the the instrument. The data is not uniformly degraded. How I can get smooth data without noise? Which parameters should be adjusted to collect uniformly degraded data. I have attached the TGA plot of my sample. Kindly suggest me any solution. I shall be thankful
That is artifact caused by malfunction. It may help to check the same data with time selected for the horizontal axis. Check counterweight levelling and if the rod is properly centred. Check leveling of the instrument. Check Instruction Manual. Consider to call for technical assistance.
I agree with Carlos Araújo, you should check if there is something that is causing a flow in the apparatus, perhaps a window, air conditioning? or a current fluctuation in which case you would have to put a voltage controller. Technical assistance would do it.
You should also consider decreasing the heat flow rate - increasing the measurement time (22 min for 570ºC)
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