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Thermogravimetric analysis (TGA) data processing

MindMap Gallery Thermogravimetric analysis (TGA) data processing

Thermogravimetric analysis (TGA) data processing

Thermogravimetric analysis (TGA) data processing encompasses the composition of TGA instrumentation, data collection, and interpretation of results. By recording the mass change of a sample during heating and analyzing key parameters such as the mass loss curve and pyrolysis temperature, critical information about the thermal stability and pyrolysis process of materials can be revealed.

Edited at 2024-12-22 09:16:50

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Thermogravimetric analysis (TGA) data processing

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Outline

Thermogravimetric analysis (TGA) data processing

Introduction to TGA

Definition of TGA

Technique measuring mass changes

Against temperature or time

Purpose of TGA

Material characterization

Thermal stability assessment

TGA Instrumentation

TGA apparatus components

Furnace

Heating element

Temperature control

Balance

High precision

Measures mass changes

Sample holder

Material compatibility

Sample size

Temperature calibration

Ensuring accurate temperature measurements

Use of reference materials

Data Collection

Experimental parameters

Heating rate

Affects kinetic studies

Atmosphere

Inert or reactive gases

Impact on decomposition

Sample mass

Amount of material analyzed

Data acquisition system

Sampling rate

Frequency of data points

Resolution

Precision of mass measurements

Data Analysis

Baseline correction

Removal of system artifacts

Isolation of sample mass changes

Derivative thermogravimetry (DTG)

First derivative of TGA curve

Identifies peaks and transitions

Thermogravimetric (TG) curve

Plot of mass vs. temperature/time

Key points identification

Onset of decomposition

Midpoint of mass loss

Endpoint of reaction

Isothermal and dynamic analysis

Isothermal

Constant temperature studies

Dynamic

Variable temperature studies

Interpretation of Results

Material identification

Correlating mass loss with specific materials

Kinetic analysis

Determining reaction rates

Activation energy estimation

Quantitative analysis

Calculating mass loss percentages

Determination of residue composition

Software Tools

Data processing software

Curve fitting

Mathematical models for data interpretation

Data smoothing

Reduction of noise

Report generation

Exporting data and graphs

Customization of reports

Quality Assurance

Repeatability and reproducibility

Ensuring consistent results

Statistical analysis of multiple runs

Calibration verification

Regular checks of instrument accuracy

Use of certified standards

Applications of TGA

Polymer science

Decomposition studies

Additive content determination

Pharmaceuticals

Drug stability testing

Excipient behavior analysis

Catalysis

Catalyst deactivation studies

Thermal stability of catalysts

Environmental studies

Waste management

Emission control materials