GE Healthcare AKTA Explorer 100 Used Protein Purification System

Overview

The GE Healthcare AKTA Explorer 100 is a high-performance, benchtop protein purification system engineered for robust, reproducible, and scalable chromatographic separations in research, process development, and early-stage GMP environments. Built on the proven AKTA platform architecture, this used instrument retains full functional integrity and regulatory readiness—supporting ion exchange, size exclusion, hydrophobic interaction, and affinity chromatography workflows. Its core operation relies on precision dual-pump gradient formation, real-time multi-parameter monitoring (UV absorbance at 280/254 nm, conductivity, pH, temperature, and differential column pressure), and intelligent flow-path control via integrated valve manifolds. Designed for method transfer across scales, the system interfaces natively with UNICORN 6 software—a validated, 21 CFR Part 11-compliant control and data management platform widely adopted in biopharmaceutical R&D labs.

Key Features

• BufferPro Automated Buffer Preparation: Integrated quaternary mixing valve enables real-time online formulation of buffers via titration of stock acid/base solutions. Supports 26 predefined buffer recipes with automatic compensation for temperature-induced pKa shifts and ionic strength effects—eliminating manual preparation, reducing operator error, and accelerating pH screening.
• Design of Experiments (DoE) Integration: UNICORN 6 embeds statistically rigorous DoE modules for simultaneous multi-factor optimization (e.g., gradient slope, flow rate, pH, conductivity). Reduces experimental runs by up to 70% compared to one-factor-at-a-time (OFAT) approaches while capturing interaction effects and quantifying parameter sensitivity.
• Method Editor Workflow: Intuitive drag-and-drop interface for constructing chromatographic methods by assembling preconfigured step templates (equilibration, load, wash, elute, regeneration). Generates executable script code automatically while retaining full low-level command access for advanced users.
• Differential Column Pressure Monitoring: Dual pressure transducers mounted directly upstream and downstream of the column provide real-time ΔP measurement—critical for column integrity protection, consistent packing validation, and adaptive flow-rate control under variable backpressure conditions.
• UNICORN 6 Regulatory Compliance: Fully compliant with FDA 21 CFR Part 11 requirements, including electronic signatures, role-based user permissions, immutable audit trails, automated backup, and secure database architecture. Supports IQ/OQ/PQ documentation packages via GE’s Regulatory Support Services.
• UniTag & Column Logbook: QR-code-based column tracking enables automatic logging of column history—including total runs, maximum ΔP, cleaning cycles, and maintenance alerts. Compatible with HiScreen prepacked columns and custom-packed media; supports traceability from R&D to clinical manufacturing.

Sample Compatibility & Compliance

The AKTA Explorer 100 accommodates standard 10 mm ID analytical and preparative columns (up to 26 mm ID with optional hardware), as well as GE’s HiScreen and HiTrap series prepacked formats. It supports all major chromatographic resins—including Capto, MabSelect, Sepharose, and SOURCE—within specified flow and pressure limits (max. 20 MPa system pressure, 10 mL/min max. flow rate). The system meets ISO 9001 design standards and operates within environmental specifications per IEC 61010-1 for laboratory equipment safety. All sensor outputs (UV, conductivity, pH, temperature) are calibrated traceable to NIST standards. Data integrity conforms to ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available) under GLP and GMP-aligned workflows.

Software & Data Management

UNICORN 6 serves as the unified control, acquisition, analysis, and reporting engine. It stores all raw signals, method files, and audit logs in a single encrypted Microsoft SQL Server database. Each user session is time-stamped and logged with operator ID, action type, and parameter changes. Electronic signatures require dual authentication (username/password + challenge-response token) for critical operations such as method activation or result approval. Data export supports CSV, PDF, and XML formats compatible with LIMS integration. Version-controlled method libraries allow controlled rollout of optimized protocols across multiple instruments. Backup policies support daily incremental and weekly full backups with retention configurable per institutional SOP.

Applications

This system is routinely deployed in academic and industrial settings for monoclonal antibody purification, recombinant protein isolation, vaccine antigen characterization, plasmid DNA polishing, and viral vector purification. Its DoE and BufferPro capabilities make it especially valuable for rapid buffer scouting during capture-step optimization, linear/nonlinear gradient development for polishing steps, and robustness testing of purification processes per ICH Q5A and Q5B guidelines. The high-resolution UV detection and precise fraction collection (0.1 mL increments) enable recovery of narrow elution peaks for structural biology applications (e.g., SEC-MALS, HDX-MS sample prep).

FAQ

Is this unit fully tested and certified prior to resale?
Yes—each AKTA Explorer 100 undergoes comprehensive functional verification including pump linearity, detector baseline stability, valve switching accuracy, pressure sensor calibration, and UNICORN 6 software integrity checks. A full test report and calibration certificate are provided.
Does the system include UNICORN 6 software licenses?
Yes—the unit ships with a perpetual, transferable UNICORN 6 Professional license, including all DoE, BufferPro, and Column Logbook modules. Software installation media and activation keys are included.
Can this system be upgraded to support newer AKTA hardware modules?
No—Explorer 100 is a fixed-architecture platform. However, its UNICORN 6 software is backward-compatible with legacy methods and forward-compatible with most AKTA avant and Pure system reports for seamless data comparison.
What service support is available post-purchase?
We offer optional extended service agreements with remote diagnostics, priority engineer dispatch, and on-site preventive maintenance visits aligned with GE Healthcare’s original service intervals.
Are spare parts and consumables still available?
Yes—all fluidic components (pumps, valves, detectors, tubing kits), sensors, and UNICORN-compatible accessories remain in active production or are available through authorized GE Healthcare distribution channels.