thermogravimetric analysis什么意思

英语翻译
2.2.Methods
Thermogravimetricanalyses were conducted under the heating rates (5,10,15,20 ◦C/min) in anitrogen environment from 50 ◦C to 700 ◦C and the gas flow was 30 L min−1.The samples were cut with scissor to fine particles for ensuring heated evenly.In order to reduce the impact of sample size on the results,the error causedby weighing should not more than 0.02 mg.
Simultaneousanalyses were begun from room temperature to 600 ◦C with a heating rate of 10◦C/min.The environment gas and purge gas were both nitrogen with gas flow rate20 ml min−1.Samples were cut into small particles as well.