Tobacco element content detection method based on non-isothermal thermal analysis in inert atmosphere

The invention discloses a tobacco element content detection method based on single-scanning-rate non-isothermal thermal analysis in an inert atmosphere. The tobacco element content detection method comprises the following steps: a, collecting single-scanning-rate non-isothermal TG and DTG curves of tobacco in the inert atmosphere; b, carrying out experimental detection on the contents of C, O and N elements of the tobacco; c, constructing a model; classifying the tobacco data sets used in the steps a and b into training set samples and test set samples; for training set samples, establishing a tobacco C, O and N element content prediction model based on a TG or DTG curve by adopting a chemometrics algorithm; d, verifying the model: inputting the TG or DTG curve of a test set sample measured in the step a into the model obtained in the step c, and comparing the content of C, O and N elements predicted by the model with a detection result of an element analyzer so as to verify and evaluate the accuracy of the m