Organomation N-EVAP-12 Nitrogen Evaporator
| Brand | Organomation |
|---|---|
| Origin | USA |
| Model | N-EVAP-12 |
| Catalog No. | KL-11155 |
| Heating Method | Water Bath |
| Temperature Range | 30°C–90°C |
| Temperature Stability | ±2°C |
| Sample Capacity | 12 positions |
| Tube Diameter Compatibility | 0–29 mm |
| Gas Flow Rate | 0–5 L/min (330 mL/min per sample) |
| Heating Power | 500 W |
Overview
The Organomation N-EVAP-12 Nitrogen Evaporator is a precision-engineered, water-bath-based sample concentration system designed for reproducible, low-temperature solvent removal in analytical laboratories. It operates on the principle of gentle nitrogen gas displacement—directing a controlled stream of inert gas across the surface of heated liquid samples to accelerate evaporation while minimizing thermal degradation, oxidation, or analyte loss. Unlike rotary evaporation—which risks bumping or foaming with volatile or viscous matrices—the N-EVAP-12 delivers uniform, non-turbulent gas flow at precisely regulated temperatures, making it especially suited for preparatory steps prior to GC, HPLC, LC-MS, and GC-MS analysis. Its robust stainless-steel construction, laboratory-grade corrosion resistance, and modular gas dispersion architecture reflect decades of refinement in evaporative sample preparation instrumentation.
Key Features
- 12-position water bath platform with engraved “N-EVAP-111” identification for traceable configuration compliance
- 360° rotational sample holder enabling unobstructed front-access operation and ergonomic workflow integration
- Adjustable needle-height gas delivery system with individual stainless-steel needles positioned directly above each sample vessel
- Integrated needle-valve gas flow meter calibrated for precise control and real-time monitoring (0–5 L/min total; 330 mL/min per channel)
- Programmable digital temperature controller with ±2°C stability across the full 30°C–90°C range
- 500 W high-efficiency heating element ensuring rapid thermal equilibration and minimal energy waste
- Chemically resistant construction: all wetted parts certified for compatibility with common organic solvents (e.g., acetonitrile, methanol, chloroform, ethyl acetate) and aqueous matrices
- Optional acid-resistant coating available for extended service life in aggressive environments (e.g., hydrolysis digestates, acidic extraction buffers)
Sample Compatibility & Compliance
The N-EVAP-12 accommodates a broad range of container formats—including round-bottom test tubes (10–29 mm OD), conical centrifuge tubes, and small-volume vials—without requiring custom adapters. Its open-bath geometry supports vessels up to 150 mm in height. The system complies with fundamental laboratory safety and quality requirements: all electrical components meet UL/CSA Class I, Division 1 standards; materials conform to USP Class VI biocompatibility specifications where applicable; and operational parameters align with method validation guidelines outlined in ASTM D7249 (for pesticide residue analysis) and ISO 17025-accredited workflows. While not inherently 21 CFR Part 11 compliant as a standalone device, its analog controls and stable output support integration into validated SOPs under GLP/GMP frameworks when paired with auditable logbooks or external data capture systems.
Software & Data Management
The N-EVAP-12 is an analog-controlled instrument optimized for reliability, repeatability, and minimal maintenance—eliminating firmware dependencies or software licensing constraints. Temperature setpoints and gas flow are adjusted manually via calibrated dials with tactile feedback and visual indicators. This design philosophy prioritizes operational transparency and long-term serviceability over digital complexity. For laboratories requiring electronic audit trails, the unit can be operated within a documented environment using external calibrated thermometers and flow meters, with manual entries recorded in secure, version-controlled lab notebooks or LIMS-integrated forms. Optional RS-232 or 4–20 mA analog output modules (sold separately) enable connection to centralized process monitoring systems for temperature trending and alarm logging.
Applications
- Agricultural & Environmental Testing: Residue analysis in fruits, vegetables, grains, tobacco, soil extracts, and water samples (EPA Methods 508, 525, 8081)
- Pharmaceutical Development & QC: Concentration of drug metabolites, impurity standards, and dissolution media prior to HPLC or mass spectrometric detection
- Clinical & Forensic Toxicology: Preparation of serum, plasma, urine, and whole blood extracts for GC-MS screening of drugs of abuse and endogenous biomarkers
- Food & Beverage Safety: Pesticide multiresidue analysis in milk, wine, fruit juices, and infant formula per EU SANTE/11312/2021 guidelines
- Academic & Government Research: Routine sample cleanup in metabolomics, lipidomics, and environmental forensics workflows requiring parallel processing of ≥12 samples
FAQ
Is the N-EVAP-12 compatible with both nitrogen and compressed air?
Yes—gas inlet accepts either nitrogen or filtered, oil-free compressed air. Nitrogen is recommended for oxygen-sensitive analytes.
Can the water bath be replaced with a dry block heater?
No—the N-EVAP-12 is engineered exclusively for water bath operation. Dry block variants are available as separate models (e.g., N-EVAP-D series).
What is the maximum recommended sample volume per tube?
For optimal evaporation efficiency and minimal cross-contamination risk, volumes should not exceed 10 mL per 16-mm tube or 5 mL per 10-mm tube.
Does the unit include a nitrogen generator?
No—external nitrogen supply (cylinder or lab-grade generator) with regulated output (30–150 psig inlet pressure) is required.
Is calibration documentation provided with shipment?
A factory-verified temperature calibration certificate is included; users are advised to perform periodic verification using NIST-traceable thermometers per internal QA protocols.
