Interactive notebooks hosted on nordinlab.org
Brønsted-Lowry acids and bases, conjugate pairs, and fundamental pH concepts for engineering students
Interactive exploration of buffer titrations, including Henderson-Hasselbalch equation and real-world engineering applications
Self-regulating pH titrations with weak bases — relevant to bioprocess and pharmaceutical applications
Compares single-frame vs 30-frame averaging for absorbance calibration — slope differences are ≤0.3%, so a single corrected frame suffices.
Validates calibration transfer to unknown urea samples — predicts concentrations from absorbance images using 8-channel fits
UV-Vis spectrophotometry analysis of urea assay with calibration curves and spectral visualization
Colorimetric assay with calibration concentrations in multiple-height channel