GE AKTA Explorer System
| Brand | Baker Hughes (formerly GE Healthcare) |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Category | Imported Instrument |
| Model | GE AKTA Explorer |
| Operational Age | >10 Years |
| Dimensions (L×W×H) | 860 × 710 × 660 mm |
| Weight | 116 kg |
| Operating Temperature | 4–35 °C |
| Relative Humidity | 20–95% (non-condensing) |
| Power Consumption | 1100 W (Instrument: 800 W |
| PC | 300 W) |
| UV Detection Range | −6 to +6 AU |
| Conductivity Accuracy | ±0.01 mS/cm or ±2% |
| Temperature Sensor Range | 0–99 °C (±1.5 °C accuracy, 4–45 °C) |
| pH Sensor Range | 0–14 pH (±0.1 pH accuracy, pH 2–12) |
| Fraction Collector Volume Range | 0.1–50 mL |
| Integrated Pressure Sensors | System pump, sample pump, column inlet, column outlet |
| Integrated Air Bubble Detectors | Sample inlet, Pump A, Pump B |
Overview
The GE AKTA Explorer is a high-performance, benchtop preparative liquid chromatography system engineered for robust method development and process optimization in biopharmaceutical R&D laboratories. Designed by GE Healthcare (now part of Cytiva, with legacy instrumentation supported under Baker Hughes’ authorized distribution network), the AKTA Explorer implements low-pressure gradient chromatography based on precise peristaltic and piston pump delivery, real-time multi-parameter monitoring (UV, conductivity, pH, temperature, pressure differential), and fully integrated fraction collection. Its architecture conforms to Good Laboratory Practice (GLP) and Good Manufacturing Practice (GMP)-aligned workflows, supporting early-stage purification of monoclonal antibodies, recombinant proteins, plasmids, and viral vectors. The system operates under UNICORN 6 software — a validated, FDA 21 CFR Part 11-compliant platform enabling electronic signatures, audit trails, role-based access control, and immutable data storage in a centralized database.
Key Features
- BufferPro Automated Buffer Preparation: Integrated four-channel valve enables real-time online mixing of stock solutions (acid, base, salt, water) to generate precisely defined buffers across broad or narrow pH ranges — eliminating manual titration, reducing preparation time by ~30 minutes per condition, and improving reproducibility and scalability.
- Design of Experiments (DoE) Integration: UNICORN 6 embeds statistically rigorous DoE tools that allow simultaneous variation of multiple parameters (e.g., gradient slope, flow rate, pH, conductivity), minimizing experimental runs while maximizing information yield for robust method optimization and parameter screening.
- Method Editor Interface: Intuitive drag-and-drop workflow builder using preconfigured step templates (load, wash, elute, regenerate); supports both novice users via guided setup and advanced users via full script-level editing and conditional logic.
- Column Protection & Differential Pressure Monitoring: Dual pressure transducers at column inlet and outlet continuously calculate ΔP across the packed bed, enabling real-time safeguarding against overpressure, facilitating constant-pressure packing, and supporting column lifetime management.
- UniTag & Column Logbook: QR-code-based column tracking captures performance history (total runs, max ΔP, cleaning cycles); configurable alerts notify users when maintenance or replacement is due, ensuring traceability and regulatory compliance.
- FDA 21 CFR Part 11 Compliance: Full implementation of electronic records, electronic signatures, user authentication, audit trail logging, and data integrity safeguards — verified through vendor-provided validation support packages.
Sample Compatibility & Compliance
The AKTA Explorer accommodates a wide range of chromatographic media, including Capto™, MabSelect™, HiTrap™, and HiScreen™ prepacked columns — all designed for BioProcess™ applications requiring regulatory documentation and lot-specific QC data. It supports analytical- to pilot-scale purification workflows (typically 1–20 mL column volumes), with compatibility extending to ion exchange, size exclusion, hydrophobic interaction, and affinity chromatography. All hardware and firmware comply with IEC 61010-1 safety standards and electromagnetic compatibility (EMC) directives (EN 61326-1). Data handling meets ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available) as required for GLP/GMP environments.
Software & Data Management
UNICORN 6 serves as the central control, acquisition, and analysis environment. It features a unified database architecture where all methods, raw signals, processed results, and audit logs are stored immutably. User permissions are granularly assigned (e.g., operator, supervisor, administrator), and session locking prevents unauthorized intervention during unattended runs. Electronic signatures adhere to 21 CFR Part 11 requirements, including identity verification, intent confirmation, and timestamped binding. Optional validation support services provide IQ/OQ documentation, risk assessments, and change control templates aligned with ISO/IEC 17025 and Annex 11 expectations.
Applications
The system is routinely deployed in upstream and downstream process development labs for: rapid screening of capture and polishing steps; optimization of elution gradients and wash stringency; characterization of column fouling and regeneration efficiency; comparative evaluation of novel resins; and generation of technical transfer packages for clinical manufacturing. Its compatibility with HiScreen columns enables direct scale-up correlation from 1 mL to 10–20 cm bed heights, significantly shortening development timelines. Applications span therapeutic protein purification, vaccine antigen isolation, oligonucleotide refinement, and extracellular vesicle enrichment.
FAQ
Is this unit fully refurbished and functionally tested prior to sale?
Yes — each AKTA Explorer undergoes comprehensive electrical, fluidic, and software validation, including pump linearity checks, detector calibration verification, pressure sensor cross-validation, and end-to-end method execution testing.
Does the system include UNICORN 6 software licenses and installation media?
All units ship with original OEM UNICORN 6 installation media, valid activation keys, and complete documentation sets — including electronic signature configuration guides and Part 11 compliance checklists.
Can the system be integrated into an existing LIMS or ELN infrastructure?
UNICORN 6 supports standard data export formats (CSV, XML, PDF) and offers optional OPC UA connectivity for enterprise-level integration; custom API extensions are available via Cytiva’s Developer Toolkit.
What regulatory documentation is provided with the instrument?
Purchasers receive a Certificate of Conformance, Factory Test Report, UNICORN 6 Validation Support Package (including IQ/OQ protocols), and a detailed service history log covering all major component replacements and calibration events.
Is on-site installation and qualification support available?
Yes — certified field application specialists can perform installation qualification (IQ), operational qualification (OQ), and user training at customer facilities, subject to regional service agreements.
