ChemBioCalc: Lab Assistant

ChemBioCalc is the ultimate scientific calculator for chemistry, pharmaceutical technology, and molecular biology professionals and students.

FREE FEATURES:
• Periodic Table with all 118 elements, search and detail view
• Mol Calculator (mass, molar mass, pH, dilution)
• Solution Preparation (molar, %(w/v), ppm, from liquid)
• DNA/RNA Concentration & Tm calculation
• PCR Master Mix & Primer tools
• Cell Culture calculations
• Sequence Tools (translation, ORF finder)
• Lab Notebook with photo capture

CHEMISTRY PRO (subscription):
• RGB Colorimetry — image-based concentration analysis
• Adsorption Isotherms — 8 models (Langmuir, Freundlich, Temkin, D-R...)
• Kinetic Analysis — PFO, PSO, Elovich, IPD with R² comparison
• Thermodynamic Analysis — Van't Hoff ΔH°, ΔS°, ΔG°
• LOD/LOQ & calibration statistics
• Design of Experiments (DoE) · Chemometrics · RSM — factorial, Plackett-Burman, CCD, Box-Behnken + response-surface optimization
• Method Validation — ICH Q2(R2) / EMA M10 linearity, accuracy, LOD/LOQ
• HPLC method transfer (USP <621>) & column selector

PHARMACY PRO (subscription):
• Release Kinetics — 8 models with Korsmeyer-Peppas interpretation
• Stability Analysis — Arrhenius, shelf life prediction, Q10
• Dissolution Comparison — f1/f2 factors with FDA/EMA criteria
• Particle Size Analysis — d10, d50, d90, Span, SSA
• Encapsulation — EE%, DL%, zeta potential
• Pharmacokinetics & 2-compartment PopPK — AUC, half-life, Vss
• Interspecies dose (HED/NOAEL) & bioequivalence (90% CI)

MOLBIO PRO (subscription):
• qPCR — ΔΔCt, standard curve, efficiency
• Cloning — restriction, ligation, Gibson Assembly, transformation
• Protein — A280, pI, molecular weight, extinction coefficient
• Electrophoresis — agarose/PAGE recipes, size estimation
• ELISA — 4PL curve fitting, concentration calculation
• CRISPR guide design, NGS coverage & primer designer
• Western blot & electrophoresis analysis

PRO FEATURES:
• Calculation history — save, recall and edit past calculations
• Replicate measurement with statistics (mean, SD, %RSD)
• Excel/CSV/PDF export
• Ad-free experience
• Lab Notebook Pro — unlimited entries, photo editing
• Your Pro subscription also works on chembiocalc.com — sign in with the same account and the Pro calculators open in your browser

Designed for:
✓ Chemistry students & researchers
✓ Pharmaceutical scientists
✓ Molecular biology researchers
✓ Quality control analysts
✓ Lab technicians