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AxisBenchTechniquesTGA analysis

TGAThermogravimetric analysis

TGA analysis: mass-loss steps, DTG and residue.

Resolve a thermogravimetric curve into steps with onset, endset and mass loss, read the residue at the temperatures you choose and keep every setting beside the result.

Start free What it computes
TGA resultField names, not sample data
Step onset, endset
°C
DTG peak
°C
Mass loss per step
%, mg with initial mass
Residue after each step
%
Total mass loss, final residue
%
Residual mass at target
%, mg
DTG
%/°C, %/min when traceable

Withheld values carry the reason, for example a target outside the measured range.

Steps
ISO 11358 plateau construction
Derivative
DTG in %/°C and %/min
Files
CSV, TXT, TSV, Excel
Price
Free plan, no credit card

01 · What it computes

From mass curve to resolved steps.

Every transform is a named, parameterised step. Settings save as presets and run across a batch of curves.

  • Mass-loss steps

    Steps are found from DTG peaks. The mass loss is the gap between plateau lines fitted before and after each step, following ISO 11358. Templates for general, single-step and multi-step decomposition.

  • Onset, endset and DTG peak

    Tangent onset and endset temperatures for each step, with the step midpoint at the DTG maximum.

  • Residue at your temperatures

    Residual mass at the target temperatures you list. Targets outside the measured range are withheld with a reason, never extrapolated.

  • DTG and mass units

    DTG in %/°C, and in %/min when the heating rate is entered or read from the file. Mass in percent or mg, detected at import or set by you.

  • Smoothing in °C

    Savitzky–Golay, moving-average or Gaussian smoothing with a window in °C, 12 °C by default, so the same physical width applies at any sampling step.

  • Kinetics

    Runs at several heating rates go to Kissinger, Ozawa-Flynn-Wall, Kissinger-Akahira-Sunose, Friedman or Vyazovkin analysis for the activation energy.

02 · References

Context from the literature, not a curve library.

AxisBench does not match TGA curves against a reference library; the open libraries cover FTIR, Raman and XRD. For TGA, relevant papers are retrieved from OpenAlex and attached to the result, with their DOIs in the export.

Where the citations come from

SourceRecords in the catalogWhat it providesTermsCost
Literature, searched live Open scholarly index behind the citations in your reports CC0 metadata Free

The Free plan shows the top literature result; Pro shows up to five. To identify the material behind a TGA event, add FTIR, Raman or XRD data to the same project and match it against the open libraries.

03 · Files and limits

What goes in, and what it does not claim.

Supported files

  • CSV, TXT, TSV and ExcelColumns are mapped to temperature and signal at import, and quality warnings show before anything is computed.
  • Instrument text exportsColumn headers from NETZSCH, TA Instruments and METTLER TOLEDO software exports are recognised at import.
  • Heating rateRead from the file when present or entered by you. The project records which, and values that need it are withheld without one.

Limits

  • No extrapolationResidual mass is interpolated inside the measured range only.
  • No reference-curve matchingTGA results come from your curve. Identification comes from spectra or patterns in the same project.
  • Kinetics needs several runsActivation energy needs the same step measured at more than one heating rate.
  • ExportsTables as CSV or XLSX, figures as PNG and reports as DOCX or PDF. The whole project downloads as a file you can reopen later.

Other techniques in the same project

DSC, TGA, DTA, FTIR, Raman and XRD data live side by side in one AxisBench project. Full multi-technique reports come with Pro.

Resolve the steps in your next TGA curve.

The Free plan includes every technique and the full reference libraries, with 10 analyses a month (up to 3 a day). Pro removes the limits.

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