SciLogix MDS-2008DS Dissolution Tester

Overview

The SciLogix MDS-2008DS is a fully automated, online dissolution testing system engineered for compliance with global pharmacopeial standards—including USP , Ph. Eur. 2.9.3, and JP 17—while supporting Good Manufacturing Practice (GMP) and Good Laboratory Practice (GLP) operational requirements. It employs the paddle and basket methods of dissolution testing in accordance with classical hydrodynamic principles: rotational shear forces generated by precisely controlled shaft motion induce uniform fluid dynamics within standardized dissolution vessels, enabling quantitative measurement of active pharmaceutical ingredient (API) release kinetics under physiologically relevant conditions. Designed for high-throughput laboratories engaged in formulation development, stability studies, and quality control of solid oral dosage forms, the MDS-2008DS integrates hardware precision, software traceability, and mechanical robustness into a single platform validated for regulatory submission readiness.

Key Features

• Eight independent dissolution vessels with dual-volume options (250 mL and 1000 mL), including amber glass vessels for light-sensitive formulations.
• Vessel mounting system featuring embedded circumferential clamping rings that ensure vertical alignment, minimize evaporation, and reduce mechanical drift during extended runs.
• V-shaped anti-evaporation lids engineered for conformal sealing against each vessel rim—reducing solvent loss to <1.5% over 6-hour dissolution cycles at 37 °C.
• Modular, segmented 316L stainless steel shaft assembly compatible with interchangeable paddles, baskets, and small-volume adapters—eliminating recalibration after method switching.
• Dual-point stainless steel guide rods per vessel station provide axial rigidity and maintain shaft concentricity within ISO 19001-specified tolerances across >10,000 operational cycles.
• Independent temperature sensing: eight PT100-grade probes, each retractable above the dissolution medium during sampling to prevent interference with hydrodynamics or filter integrity.
• Integrated PID + fuzzy logic temperature controller delivering ±0.2 °C accuracy and 0.01 °C resolution across the full 20–45 °C operating range.
• Self-draining, seamless injection-molded water bath (32 L capacity) with quick-connect fittings and radius-corner geometry to eliminate microbial harborage zones and simplify cleaning validation.

Sample Compatibility & Compliance

The MDS-2008DS accommodates diverse dosage forms beyond conventional tablets and capsules—including semi-solids (e.g., gels, ointments), transdermal patches, microspheres, and implantable depot systems—via configurable agitation modes and optional accessories such as sinker weights, conical baskets, and flow-through cell adaptors. All mechanical components meet ISO 8573-1 Class 3 purity standards for non-sterile pharmaceutical equipment. The system supports full lifecycle validation per ASTM E2503-21 (Standard Guide for Validation of Dissolution Apparatus) and includes documentation packages aligned with FDA 21 CFR Part 11, EU Annex 11, and ICH Q5C stability guidelines. Optional AIQ (Analytical Instrument Qualification) services include Installation Qualification (IQ), Operational Qualification (OQ), and Performance Qualification (PQ) protocols compliant with WHO TRS 992 Annex 6 and PIC/S PI 007-7.

Software & Data Management

The embedded control interface runs on a real-time Linux-based OS with a 10-inch capacitive touchscreen display. Up to 100 dissolution methods—including time points, rotation profiles, temperature ramps, and sampling triggers—can be stored locally. Method import/export occurs via USB using encrypted .sllog files; exported logs retain full metadata (operator ID, timestamp, vessel-specific parameters, ambient humidity/pressure tags if integrated). Audit trail functionality records all user actions—including parameter edits, method executions, and calibration events—with immutable timestamps and digital signatures. Role-based access control enforces three permission tiers: Administrator (full configuration), Supervisor (method execution + report review), and Operator (run-only mode). Data output complies with ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available) and supports electronic signature workflows per 21 CFR Part 11 Subpart B.

Applications

The MDS-2008DS serves critical functions across pharmaceutical R&D and QC environments: comparative dissolution profiling for generic product equivalence studies; IVIVC (in vitro–in vivo correlation) model development; excipient interaction screening during preformulation; batch-release testing per compendial monographs; and stability-indicating dissolution assessment under stressed conditions (e.g., pH-shifted media, enzymatic additives). Its modular architecture allows integration with HPLC autosamplers, UV/Vis spectrophotometers, and online LC-MS systems via TTL and RS-232 interfaces—enabling unattended, end-to-end dissolution–analysis workflows validated under GMP Annex 15.

FAQ

Does the MDS-2008DS support USP Apparatus 1 (basket) and Apparatus 2 (paddle) configurations?
Yes—the system ships with both paddle and basket assemblies calibrated to USP dimensional specifications, and its segmented shaft design enables tool-free switching between them without re-zeroing height.
Is mechanical verification (MV) included with purchase?
MV is available as an optional service; however, the instrument includes built-in diagnostic routines for wobble, centering, and temperature uniformity per ASTM E2503-21 Annex A2.
Can the system operate unattended overnight?
Yes—scheduled start times, automatic bath pre-conditioning, and event-triggered sampling enable fully autonomous operation for up to 72 hours.
What data security measures are implemented?
All data is stored in encrypted local memory; USB export requires password authentication, and audit trails cannot be edited or deleted—even by administrators.
Is remote monitoring supported?
Ethernet connectivity enables secure remote access via TLS 1.2–encrypted web interface for real-time status viewing and log retrieval—subject to network firewall configuration.