Organomation N-EVAP-12 12-Position Nitrogen Evaporator

Overview

The Organomation N-EVAP-12 is a precision-engineered, 12-position nitrogen evaporator designed for controlled, gentle solvent removal in analytical sample preparation workflows. Operating on the principle of inert gas-assisted evaporation, it delivers regulated nitrogen flow across heated sample surfaces to accelerate solvent volatilization while minimizing thermal degradation, oxidation, or cross-contamination. Unlike rotary evaporation—where rapid pressure reduction may induce bumping or foaming—the N-EVAP-12 employs low-flow, laminar nitrogen sweep combined with stable water-bath heating (30–90°C) to achieve reproducible concentration of heat-sensitive analytes. Its architecture conforms to standard laboratory benchtop ergonomics and integrates seamlessly into LC, GC, GC-MS, and LC-MS sample prep pipelines where quantitative recovery, low carryover, and method traceability are critical.

Key Features

• 12 independent, adjustable sample positions accommodating tubes, centrifuge vials, and conical flasks (0–29 mm diameter)
• Rotatable sample manifold enabling unobstructed front-access operation and intuitive alignment of gas delivery needles
• Integrated water bath with PID-controlled heating (30–90°C), ±2°C temperature uniformity across all wells
• Individual needle-valve gas flow regulators with calibrated flow meters (0–5 L/min total; 330 mL/min per position)
• Gas dispersion system engineered for laminar, non-turbulent nitrogen delivery—reducing splashing and improving evaporation efficiency
• Chemically resistant construction: stainless steel base, anodized aluminum frame, and optional acid-resistant coating for extended service life in aggressive solvent environments
• No external gas manifold required—designed for direct connection to lab nitrogen supply or compressed air source

Sample Compatibility & Compliance

The N-EVAP-12 supports a broad range of sample containers—including 10–50 mL glass test tubes, 15 mL and 50 mL conical centrifuge tubes, and small-volume vials—without adapter kits. Its open-platform design allows real-time visual monitoring and manual intervention during evaporation. The instrument complies with general laboratory safety standards for electrical equipment (UL/CSA recognized components) and is compatible with Good Laboratory Practice (GLP) and Good Manufacturing Practice (GMP) environments when used within documented, validated protocols. While not inherently 21 CFR Part 11 compliant (as it lacks onboard data logging), its operational parameters are fully configurable and repeatable—enabling integration with external electronic lab notebooks (ELNs) or LIMS systems for audit-trail generation.

Software & Data Management

The N-EVAP-12 is a standalone, hardware-only instrument with no embedded microprocessor or digital interface. Temperature setpoint and gas flow are adjusted manually via mechanical dials and analog flow meters—ensuring operational simplicity, long-term reliability, and immunity to firmware failure. This analog architecture eliminates calibration drift associated with digital sensors and supports uninterrupted use in high-humidity or solvent-rich fume hood environments. For laboratories requiring documentation, users routinely pair the unit with external temperature loggers (e.g., ISO/IEC 17025-accredited thermistors) and timed gas flow records to satisfy internal SOPs and regulatory review requirements.

Applications

• Residue Analysis: Pesticide, herbicide, and PCB extraction from tobacco, fruits, vegetables, cereals, and plant tissues (aligned with AOAC 2007.01 and EPA Method 8081B)
• Pharmaceutical Testing: Residual solvent removal in API purification, stability-indicating assays, and USP compliance workflows
• Environmental Monitoring: Concentration of trace organics (PAHs, phthalates, VOCs) in drinking water, groundwater, and wastewater extracts prior to GC analysis
• Clinical & Forensic Toxicology: Prep of serum, plasma, urine, and whole blood samples for LC-MS/MS quantitation of drugs of abuse, metabolites, and endogenous biomarkers
• Food Safety: Mycotoxin cleanup (e.g., aflatoxins, ochratoxin A), pesticide screening in dairy, beverages, and infant formula per EU Commission Regulation (EC) No 396/2005
• Academic Research: Routine solvent exchange in synthetic chemistry, natural product isolation, and metabolomics sample preparation

FAQ

What gases are compatible with the N-EVAP-12?
Nitrogen is recommended for inert atmosphere applications; compressed air may be used for non-oxidation-sensitive samples.
Can the unit operate without water in the bath?
No—water bath heating requires liquid medium; dry operation will damage the heater and void warranty.
Is the gas flow rate adjustable per position?
Yes—each of the 12 positions features an individual needle valve and flow meter for independent optimization.
What maintenance is required?
Routine cleaning of the water bath, periodic inspection of O-rings and gas tubing, and descaling (if using hard water) every 3–6 months.
Does the N-EVAP-12 support programmable ramping or timed shutdown?
No—it is a manually operated analog instrument; timing and endpoint determination are user-defined via external timers or visual observation.