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Card 995 of 9982026-08-21 issue

Observed arrival · 2026-08-21

ChemMetrics Web Lab

zhchemmetrics.lat Observed source
Editorial interest 78/100 Selection signal · not a rating of the site

An open analytical-chemistry workbench for calibration curves, titration analysis, and chromatograms.

Landing page captured for the 2026-08-21 issue.

Why it surfaced

ChemMetrics turns three lab workflows into browser modules with CSV/PNG export, slope and R² calculations, LOD/LOQ estimates, first-derivative and Gran-plot methods, and Spanish/English controls. It is a notably concrete open-source project, credited to chemical engineer Julio He Puentes Zhang in Bogotá and tested by three named contributors.

An open analytical-chemistry workbench for calibration curves, titration analysis, and chromatograms.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
◉HumanPersonal, local, civic, or handmade

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zhchemmetrics.lat

Landing page observed 2026-08-21. The live site may have changed.