Genevac EZ-2 4.0 Parallel Evaporator Workstation
| Brand | Genevac |
|---|---|
| Origin | United Kingdom |
| Model | EZ-2 4.0 |
| Instrument Type | Automated Quantitative Concentrator |
| Temperature Range | 30–80 °C (±1 °C control accuracy) |
| Sample Volume Capacity | 1.5 mL to 500 mL |
| Maximum Rotor Load per Position | 1.5 kg |
| Centrifugal Force | Up to 500 × g |
| Solvent Boiling Point Limit | Up to 220 °C |
| Condenser Capacity | Unlimited (auto-drain enabled) |
| Refrigerant | Low-GWP hydrofluoroolefin (HFO) blend |
| Vacuum Source | Integrated scroll pump |
| Inert Gas Purge | IGP-compatible (N₂ or Ar) |
| Acid Resistance | HCl, HNO₃ compatible |
| Solvent Compatibility | Ethanol, DCM, EtOAc, ACN, H₂O, TFA, DMF, DMSO, ether, and others |
Overview
The Genevac EZ-2 4.0 Parallel Evaporator Workstation is a fourth-generation vacuum centrifugal concentrator engineered for high-reproducibility solvent removal in life science, pharmaceutical, and analytical chemistry laboratories. It employs simultaneous centrifugal force, controlled heating, and deep vacuum to accelerate evaporation while minimizing thermal degradation, bumping, and cross-contamination. Unlike conventional rotary evaporators or nitrogen blow-down systems, the EZ-2 4.0 integrates non-contact infrared heating, real-time sample temperature monitoring, and Dri-Pure® anti-bumping technology—enabling precise, scalable concentration of heat-sensitive compounds, including peptides, oligonucleotides, APIs, and natural product extracts. Its design supports both rapid solvent removal and gentle lyophilization of HPLC fractions, making it uniquely suited for crystallization studies, polymorph screening, and solid-form development under GLP-compliant workflows.
Key Features
- 177 W high-efficiency infrared heating system (upgraded from 133 W), delivering uniform thermal energy across all sample positions without hotspots
- Full-color capacitive touchscreen interface with preloaded, protocol-driven methods—including method cloning, stepwise ramping, and endpoint detection logic
- Dri-Pure® technology: dynamically adjusts vacuum pressure and rotation speed to suppress foaming and splashing, eliminating carryover between samples
- Non-contact IR-based sample temperature sensing and closed-loop feedback control—ensuring ±1 °C accuracy at the sample surface, not just chamber air
- Ergonomic SpeedTrap™ condenser design: front-access glass collection vessel with vacuum-insulated, plastic-coated borosilicate viewing window and auto-drain functionality
- Integrated scroll vacuum pump with oil-free operation and <5 mTorr ultimate vacuum—optimized for low-volatility solvents (e.g., DMF, DMSO) and acidic media (HCl, HNO₃)
- IGP (Inert Gas Purge) module compatibility for oxygen- and moisture-sensitive applications, including ether-based extractions
- Compact footprint (580 × 620 × 440 mm) with stackable rotor options—supports 24 × 1.5 mL tubes, 12 × 50 mL falcons, 6 × 250 mL round-bottom flasks, or custom racks
- Energy-efficient standby mode, low-global-warming-potential (GWP 90% recyclable packaging aligned with ISO 14001 lab sustainability objectives
Sample Compatibility & Compliance
The EZ-2 4.0 accommodates diverse vessel formats—from microcentrifuge tubes and HPLC vials to 500 mL round-bottom flasks—without adapter kits. Its chemically resistant chamber lining and acid-tolerant condenser seals permit routine use with aggressive solvents and mineral acids. The system meets key regulatory expectations for analytical instrument qualification: IQ/OQ documentation support is provided, and software logs include full audit trails (user, timestamp, parameter set, vacuum profile, temperature history) compliant with FDA 21 CFR Part 11 requirements when used with optional LIMS-integrated control software. It supports ASTM E2656 (standard practice for lyophilization process validation) and USP (assessment of residual solvents in pharmaceuticals) through traceable endpoint determination and reproducible drying kinetics.
Software & Data Management
Control is managed via Genevac’s proprietary EZ-2 Touch software, running on an embedded ARM-based controller. The interface records all operational parameters—including real-time vacuum level (mTorr), chamber and sample temperatures (°C), rotor speed (rpm), elapsed time, and condensate mass estimation. Export formats include CSV and PDF reports with digital signatures. Optional Ethernet connectivity enables remote monitoring, scheduled runs, and integration into centralized lab automation platforms (e.g., LabVantage, STARLIMS). All data are stored locally with cyclic overwrite protection; external USB backup is supported. Software updates are delivered via secure HTTPS and validated against SHA-256 checksums to ensure integrity.
Applications
- Rapid concentration of combinatorial synthesis libraries prior to LC-MS analysis
- Polymorph screening via controlled solvent removal to induce crystallization of metastable forms
- Post-extraction cleanup of natural product isolates in ethnopharmacology workflows
- Drying of purified oligonucleotides and mRNA intermediates under inert atmosphere
- High-throughput preparation of calibration standards and QC reference materials
- Lyophilization of fractionated HPLC eluates for structural characterization (NMR, XRD)
- Removal of residual solvents from GMP-grade API batches—validated per ICH Q3C guidelines
FAQ
What vacuum level does the EZ-2 4.0 achieve, and how is it maintained during extended runs?
The integrated scroll pump delivers ≤5 mTorr base pressure. A dynamic pressure regulation algorithm continuously modulates pump speed and vent valve position to maintain setpoint stability—even during solvent load transitions or ambient temperature fluctuations.
Can the system handle high-boiling-point solvents like DMF or NMP?
Yes. With its 220 °C solvent boiling point capability, IR-heated chamber, and optimized condenser geometry, the EZ-2 4.0 achieves consistent evaporation rates for DMF, DMSO, and NMP—validated using gravimetric loss-on-drying protocols.
Is method transfer possible between older EZ-2 models and the 4.0 version?
Predefined methods from EZ-2 3.x systems can be imported and automatically mapped to updated thermal/vacuum profiles. Legacy rotor geometries remain mechanically compatible, though firmware updates are required for full feature parity.
How does Dri-Pure® prevent cross-contamination during multi-sample runs?
Dri-Pure® uses synchronized modulation of vacuum pressure, rotation acceleration, and IR power to eliminate nucleation-driven bumping—thereby preventing aerosol formation and vapor-phase carryover between adjacent vessels.
What maintenance intervals are recommended for routine operation?
The scroll pump requires annual oil replacement (if applicable) and filter inspection every 6 months. The condenser drain line should be flushed quarterly; no routine servicing of the IR heater or temperature sensors is needed due to solid-state construction and factory calibration traceability.
