Resources

Reference material around the analysis modules: methodology notes, comparisons with other software, and task-focused calculator guides. If you came here to analyse data, go straight to the modules.

Comparisons

How Labreador relates to the tools most labs already use.

Free GraphPad Prism & Excel alternative

Feature-by-feature comparison for ELISA curves, IC50/EC50, kinetics and ecotoxicology, with an honest note on where each tool fits.

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Calculators & workflows

Task-focused pages that explain one calculation and link into the matching module.

ELISA calculator (4PL / 5PL)

Standard curve fitting, blank handling, back-calculated recovery and LLOQ/ULOQ flagging, step by step.

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IC50 / EC50 calculator (4PL)

Dose-response fitting explained: 4PL model, 95% confidence intervals, Hill slope, asymptote warnings and Z′-factor.

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Pollution index calculator (CF, PLI, Igeo, EF, MPI)

Sediment and soil contamination indices with baselines, enrichment normalisation, Håkanson ecological risk and classification tiers.

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Methodology & articles

The scientific background behind every number the app reports.

Methods & equations

Full reference of models, statistics, quality gates and ecotoxicological indices implemented in Labreador.

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Blog

Practical guides on ELISA quality control, LOD/LOQ, Km/Vmax, Z′-factor, pollution indices and more.

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Validation records — the Zenodo release DOI and the peer-reviewed method article — are linked from the Tool Validation button in the footer.