DissolutionApparatus12QualityChecker

Dissolution Apparatus 1 & 2 Quality Checker — Dissolution Testing (Apparatus 1 & 2)

ℹ️  Utility assesses dissolution profile of solid dosage forms according to USP <711> using Apparatus 1 (Basket) and Apparatus 2 (Paddle):
     • Mean Dissolution ≥ Q (specified limit, e.g., 80%)
     • Individual Values: 
       - No unit less than Q - 15%
       - Not more than 2 units less than Q - 5% (Stage 2 criterion)
     • Control of physical parameters: Temperature (37.0 ± 0.5°C), Rotation Speed (±4%)
     • Support for acceptance criteria Stage 1 (n=6) and Stage 2 (n=12)

⚠️  CRITICAL: Presence of even one tablet/capsule with dissolution < Q-15% leads to immediate batch rejection!
     Temperature deviation > 0.5°C invalidates the test due to effect on dissolution kinetics.

Usage:
  DissolutionApparatus12QualityChecker.exe                            → demo mode (console output)
  DissolutionApparatus12QualityChecker.exe input.csv output.json      → evaluate your data

Input format:
BatchNumber,ProductName,ApparatusType,RPM,Temperature_C,Volume_ml,Q_Value,MeanDissolvedPercent,MinIndividualPercent,MaxIndividualPercent,UnitsBelowQ_Minus_5,UnitsBelowQ_Minus_15

Example:
  DISS-2026-TAB-001,Ibuprofen 400mg,2,50.0,37.1,900.0,80.0,88.5,82.0,94.0,0,0

— WHY IS THIS NEEDED?
Dissolution test is a key quality indicator for solid oral dosage forms.
It simulates drug release in the gastrointestinal tract and correlates with bioavailability.
Non-compliance of dissolution profile may indicate manufacturing process issues (compression, granulation) or raw material problems.

⚠️  CRITICAL:
• Q-value: Specified in monograph (e.g., Q=80% at 45 minutes).
• Stage 1 (S1): 6 units tested. Pass: Mean ≥ Q and each unit ≥ Q-5%.
• Stage 2 (S2): If S1 fails, 6 more units tested (total 12). Pass: Mean ≥ Q, not more than 2 units < Q-5%, none < Q-15%.
• Medium Degassing: Solvent must be degassed to prevent bubble formation on tablet surfaces/paddles.
• Calibration: Apparatus must undergo mechanical calibration (centering, verticality, speed) regularly.

Key features:
• Automatic check of USP <711> criteria (S1/S2)
• Control of individual extremes (Min/Max)
• Test condition verification (Temperature, RPM)
• Generation of reports for QC departments and LIMS LabWare
• Compliance with GMP and Pharmacopoeia requirements

Critical parameters:
• Mean Dissolution: ≥ Q%
• Units < Q-5%: ≤ 2
• Units < Q-15%: 0
• Temperature: 37.0 ± 0.5°C

💡 Usage tips:
1. Sampling: Automated sampling systems are preferred to minimize medium disturbance.
2. Filtration: First few mL of filtrate are usually discarded to saturate the filter.
3. Analytics: Analysis method (HPLC/UV) must be validated for specificity and linearity.
4. Interpretation: If batch fails S2, investigation of causes is required (tablet defects, analytical error).
5. Apparatus 1 vs 2: Apparatus 1 (Basket) is often used for capsules or floating drugs. Apparatus 2 (Paddle) is standard for tablets.

⚠️ Note: Dissolution test is a surrogate marker for bioequivalence. For narrow therapeutic index drugs, dissolution uniformity requirements are particularly strict.