TJtianhe RC-806 Eight-Station Automated Dissolution Tester

Overview

The TJtianhe RC-806 is an eight-station automated dissolution tester engineered for precision and regulatory compliance in pharmaceutical quality control laboratories. It operates on the principles defined in USP , Ph. Eur. 2.9.3, and JP 17 dissolution methodologies—supporting paddle (USP Apparatus 2), basket (USP Apparatus 1), and reciprocating cylinder (USP Apparatus 3) configurations via interchangeable accessories. The system maintains precise hydrodynamic conditions across all vessels through independent temperature control, synchronized motor-driven shaft rotation, and mechanical alignment systems designed to minimize wobble-induced flow perturbations. Its architecture supports routine batch testing of solid oral dosage forms—including immediate-release tablets, extended-release capsules, and orally disintegrating tablets—under strictly controlled physiological temperature and agitation conditions.

Key Features

• Eight independently controlled dissolution stations with real-time monitoring of temperature and rotational speed per vessel
• High-stability heating bath with PID-controlled circulation, achieving ±0.3 °C accuracy across the full 5.0–45.0 °C operating range
• Brushless DC motors delivering smooth, low-vibration rotation from 25 to 250 rpm with programmable ramp profiles and dwell timing
• Mechanically optimized shaft assembly: paddle wobble amplitude ≤0.5 mm and basket wobble amplitude ≤1.0 mm—meeting USP mechanical calibration requirements
• Modular vessel platform compatible with standard 1-L USP-compliant dissolution cups and optional sinker or disc fixtures
• Front-panel touchscreen interface with embedded test protocol storage, event logging, and USB data export capability

Sample Compatibility & Compliance

The RC-806 accommodates a broad spectrum of dosage forms, including coated tablets, gelatin capsules, multiparticulate systems, and matrix-based sustained-release formulations. Its mechanical design conforms to the dimensional and operational tolerances specified in USP General Chapter for apparatus qualification, particularly regarding centering, verticality, and rotational concentricity. The system supports integration with external UV-Vis spectrophotometers or HPLC autosamplers via TTL or RS-232 triggers for timed sampling. While the base unit does not include full 21 CFR Part 11 compliance out-of-the-box, its audit trail-capable firmware version (v3.2+) enables secure user authentication, electronic signatures, and immutable method/data archiving when deployed in validated GMP environments under laboratory-specific SOPs.

Software & Data Management

The RC-806 runs on embedded firmware with a dedicated dissolution protocol editor supporting multi-step dissolution methods—including variable rpm ramps, temperature transitions, and timed sampling windows. All operational parameters, sensor readings, and alarm events are timestamped and stored locally on internal flash memory (≥10,000 test records). Data export is supported in CSV format via USB flash drive, enabling direct import into LIMS or statistical analysis platforms such as JMP or Minitab. Optional PC-based software (DissolveLink v2.1) provides remote monitoring, centralized fleet management, and PDF report generation with customizable templates aligned to ICH M4 Q5 and WHO TRS 1010 annexes.

Applications

• Comparative dissolution profiling of generic and reference listed drug products (RLDPs) per FDA guidance on BCS-based biowaivers
• Stability-indicating release testing during accelerated and long-term stability studies (ICH Q1A–Q1E)
• In vitro-in vivo correlation (IVIVC) model development using deconvolution techniques
• Excipient interaction screening during formulation development, especially for pH-sensitive or polymorphic APIs
• Quality-by-Design (QbD) parameter mapping of critical process variables affecting dissolution performance
• Regulatory submission support for ANDAs, MAAs, and DMFs requiring full apparatus qualification documentation

FAQ

Does the RC-806 meet USP apparatus qualification requirements?
Yes—the mechanical verification results for paddle wobble (≤0.5 mm) and basket wobble (≤1.0 mm), along with temperature uniformity and rotational speed accuracy, satisfy the acceptance criteria outlined in USP Appendix A.
Can the system be integrated with HPLC or UV-Vis autosamplers?
Yes—via configurable digital I/O signals (TTL-compatible) or serial command protocols (RS-232), enabling synchronized sampling at user-defined time points.
Is 21 CFR Part 11 compliance available?
The firmware supports audit trails, role-based access control, and electronic signatures; full Part 11 compliance requires site-specific validation, including documented risk assessment and procedural controls.
What maintenance is required to ensure long-term calibration integrity?
Annual mechanical verification using NIST-traceable gauges and quarterly temperature probe calibration with certified thermistors are recommended per ASTM E2503 and ISO/IEC 17025 guidelines.
Are non-standard vessel sizes supported?
The platform accepts custom-designed vessels (e.g., 250 mL mini-cups or 2.5 L large-volume vessels) provided mounting dimensions and shaft clearance remain within mechanical tolerance limits.