KD Scientific CENTRIFAN™ PE Centrifugal Evaporator

Overview

The KD Scientific CENTRIFAN™ PE Centrifugal Evaporator is an engineered solution for gentle, efficient, and contamination-free solvent removal from small-volume liquid samples (typically 0.1–20 mL). Unlike conventional evaporation methods—such as rotary evaporation, vacuum centrifugation, nitrogen blow-down, or freeze-drying—the CENTRIFAN™ PE employs a patented downward-directed gas flow combined with controlled centrifugal force to achieve rapid yet non-destructive sample concentration. This principle leverages laminar inert-gas dispersion across the liquid surface while simultaneously directing vapor away from the sample zone via rotational acceleration. The system operates without vacuum pumps, high-pressure gas sources, or cryogenic traps, making it uniquely suited for routine use in synthetic chemistry, pharmaceutical development, biotechnology R&D, and academic laboratories where reproducibility, operator safety, and regulatory traceability are critical.

Key Features

• Patented downward-blowing gas delivery system eliminates bumping, foaming, and aerosol carryover common in vacuum-based evaporators
• Integrated centrifugal rotation (fixed speed optimized for 20 mL scintillation vials) ensures uniform solvent removal and prevents sample splashing or wall adhesion loss
• Temperature-controlled heating block (ambient to 55°C) with precise ±1.5°C stability supports thermally sensitive compounds including peptides, oligonucleotides, and radiolabeled tracers
• Self-contained, sealed chamber captures volatile organic compounds (VOCs), acidic vapors, and toxic solvents—compliant with OSHA and local fume hood bypass guidelines when used per manufacturer instructions
• No external vacuum pump or compressed gas manifold required; operates using standard lab-grade nitrogen or argon at low flow rates (≤5 L/min)
• Compact footprint (28 × 33 × 25 cm) enables benchtop deployment, mobile cart integration, or glove-box installation
• Programmable timer (1 min to 99 hr) with audible end-of-run alert and automatic power-down

Sample Compatibility & Compliance

The CENTRIFAN™ PE accepts standard 20 mL screw-thread scintillation vials, 15 mL conical tubes, and other widely available borosilicate glass or polypropylene containers with secure caps. Its closed-loop architecture minimizes exposure to ambient particulates and moisture, supporting GLP-compliant workflows. While not certified to ISO/IEC 17025 or FDA 21 CFR Part 11 out-of-the-box, the instrument’s deterministic process parameters (temperature setpoint, run duration, gas type/flow) enable full audit-trail documentation when integrated with laboratory information management systems (LIMS) or electronic lab notebooks (ELN). It meets ASTM D129-18 requirements for solvent recovery efficiency testing and supports USP residual solvent analysis preparation under controlled conditions.

Software & Data Management

The CENTRIFAN™ PE operates via intuitive front-panel controls with LED display; no proprietary software or driver installation is required. All operational parameters—including start time, target temperature, elapsed time, and completion status—are logged locally in non-volatile memory for up to 100 cycles. Optional RS-232 or USB-to-serial interface kits (sold separately) allow integration with custom Python- or LabVIEW-based automation scripts for batch logging, remote monitoring, or synchronization with HPLC/GC autosamplers. Audit-ready records may be exported as CSV for inclusion in SOPs, validation protocols, or regulatory submissions.

Applications

• Rapid desalting and buffer exchange of synthetic peptides prior to LC-MS analysis
• Concentration of reaction mixtures following Suzuki or Heck couplings without thermal degradation
• Preparative isolation of radiopharmaceutical intermediates (e.g., ¹⁸F-labeled tracers) under shielded conditions
• High-yield recovery of cold-trapped condensates for reuse in multi-step synthesis
• Drying of RNA/DNA extracts prior to qPCR or NGS library prep, minimizing oxidative damage
• Residual solvent removal from active pharmaceutical ingredients (APIs) during early-phase formulation studies

FAQ

Does the CENTRIFAN™ PE require a vacuum pump?

No. It functions exclusively via centrifugal force and low-flow inert gas purge—eliminating vacuum-related hazards such as bumping, oil backstreaming, or seal failure.
Can it handle chlorinated or highly volatile solvents like DCM or ether?

Yes, provided the chamber is properly sealed and vented through an approved scrubber or activated carbon filter; refer to Section 5.2 of the Safety Manual for solvent-specific compatibility guidance.
Is calibration traceable to NIST standards?

Temperature sensor calibration certificates (NIST-traceable) are available upon request at time of purchase or during annual service visits.
What maintenance is required?

None beyond periodic wiping of the chamber interior and inspection of the rotor O-ring; no lubrication, alignment, or consumable replacement is specified in the maintenance schedule.
Can multiple units be networked for centralized monitoring?

Not natively—but third-party SCADA or MQTT-enabled gateways can aggregate status data from individual units via serial output when configured per KD Scientific Application Note AN-PE-003.