Home▸Chemistry & Materials▸Trace Analysis Lab: Limit of Detection & Quantification (LOD/LOQ)

🔬 Trace Analysis Lab: Limit of Detection & Quantification (LOD/LOQ)

Interactive 3D analytical-chemistry lab: a spectrometer measures samples through real baseline noise, builds a live calibration curve, and computes the IUPAC limit of detection (LOD = 3.3σ/S) and limit of quantification (LOQ = 10σ/S) from the measured noise and slope.

Chemistry & Materials3DAdvanced60 FPS

Details

CategoryChemistry & Materials

RenderingThree.js · WebGL

DifficultyAdvanced

Target FPS60

ControlsInstrument noise slider sets the baseline signal standard deviation (sigma); test sample concentration slider sets the true analyte level being measured; Add calibration point records a fresh noisy measurement of the current concentration as a standard and refits the least-squares calibration line; Reset clears all calibration standards and restores default noise and concentration.

Three.jsChemistryAnalytical ChemistryTrace AnalysisChemical MetrologyCalibration CurveLODLOQ

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⚙ Under the hood

Interactive 3D analytical-chemistry instrument: a spectrometer measures samples through real baseline noise while building a live calibration curve from added standards. Adjust instrument noise and test-sample concentration, watch the least-squares slope and the blank-replicate standard deviation update in real time, and see the IUPAC limit of detection (LOD = 3.3sigma/S) and limit of quantification (LOQ = 10sigma/S) plotted directly on the calibration graph as the sample signal rises out of the noise.

Three.jsChemistryAnalytical ChemistryTrace AnalysisChemical MetrologyCalibration CurveLODLOQ

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install