Organomation N-EVAP-34 Water Bath Nitrogen Evaporator
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | N-EVAP-34 |
| Quotation | Available Upon Request |
Overview
The Organomation N-EVAP-34 is a precision-engineered water bath nitrogen evaporator designed for high-throughput, reproducible sample concentration in analytical laboratories. It operates on the principle of gentle inert gas (nitrogen or compressed air) displacement combined with controlled thermal energy transfer via a circulating water bath. This methodology enables efficient solvent removal from liquid samples without thermal degradation—critical for preserving analyte integrity in applications such as pesticide residue analysis, environmental contaminant quantification, pharmaceutical impurity profiling, and clinical biomarker enrichment. Unlike dry-block systems, the N-EVAP-34’s water bath design ensures uniform temperature distribution across all 34 sample positions, minimizing inter-vial variability and supporting compliance with method validation requirements under ISO/IEC 17025 and USP . Its architecture reflects decades of refinement by Organomation (North Carolina, USA), a leader in automated sample preparation instrumentation since 1982.
Key Features
- Simultaneous processing of up to 34 samples in standardized or custom tube formats (10–29 mm OD; 1–50 mL volume)
- Rotating circular sample support allows full frontal access—reducing operator fatigue and improving workflow ergonomics
- Dual-stage gas delivery system: integrated needle valve per position + master flow meter (0–30 LPM total range) with fine-tuned stainless-steel capillary needles (19-gauge × 4″)
- Low gas consumption profile: ≤330 mL/min per sample at optimal flow settings, minimizing operational cost and nitrogen cylinder dependency
- Water bath heating module with digital PID temperature control (range: ambient to 90 °C; accuracy: ±0.5 °C), ensuring consistent evaporation kinetics across all channels
- Corrosion-resistant construction: 304 stainless steel housing, anodized aluminum components, and optional acid-resistant coating for aggressive solvents (e.g., HCl, TFA, HF-containing matrices)
- Modular base with concentric coil spring lift mechanism—enabling smooth, tool-free elevation and lowering of the sample rack for safe tube insertion/removal
Sample Compatibility & Compliance
The N-EVAP-34 accommodates a broad spectrum of labware including round-bottom test tubes, conical centrifuge vials (15 mL, 50 mL), culture tubes, and HPLC vials with crimp or screw caps. Its adjustable height and radial symmetry ensure compatibility with both standard and tall-form containers (optional extension kits support tubes up to 75 mm). The system complies with general laboratory safety standards (ANSI Z9.5, OSHA 1910.1200) and supports GLP/GMP workflows through documented temperature stability, traceable calibration procedures, and audit-ready operation logs when paired with external data acquisition systems. While not inherently 21 CFR Part 11 compliant, its stable analog controls and deterministic mechanical behavior make it suitable for validated environments where electronic signature requirements are met via procedural controls.
Software & Data Management
The N-EVAP-34 operates via standalone digital electronics—no proprietary software is required. Temperature setpoint, real-time bath reading, and power status are displayed on an LED interface. For integration into LIMS or ELN ecosystems, users may connect third-party temperature loggers (e.g., Omega OM-DAQPRO-5300) via RS-232 or USB-to-serial adapters. All firmware and calibration parameters are factory-set and non-user-modifiable, ensuring method consistency across instrument lifecycles. Documentation includes full IEC 61000-4 EMC reports, RoHS/REACH declarations, and CE marking for EU deployment.
Applications
- Pre-concentration of aqueous and organic extracts prior to GC-MS, LC-MS/MS, or ICP-MS analysis
- Residue testing in food, soil, and water matrices per EPA Methods 508, 525.3, and 8081B
- Pharmaceutical stability studies requiring low-temperature, oxygen-free drying conditions
- Forensic toxicology sample cleanup following solid-phase extraction (SPE) or QuEChERS protocols
- Environmental monitoring of PAHs, PCBs, and organochlorine pesticides in sediment and biota
- Academic research involving lipidomics, metabolomics, and natural product isolation workflows
FAQ
What types of solvents can be safely evaporated using the N-EVAP-34?
The system is compatible with common organic solvents (methanol, acetonitrile, ethyl acetate, hexane, dichloromethane) and aqueous buffers. For halogenated or strongly acidic solvents, specify the optional acid-resistant coating at time of order.
Is the water bath temperature uniform across all 34 positions?
Yes—circulating water bath design with calibrated heater and sensor placement ensures ≤±0.5 °C spatial variation across the entire rack surface, verified during factory acceptance testing.
Can I use compressed air instead of nitrogen?
Yes, though nitrogen is preferred for oxidation-sensitive analytes. Air may be used for robust small-molecule applications where cost optimization is prioritized over absolute inertness.
Does the N-EVAP-34 require annual recalibration?
No mandatory annual recalibration is specified; however, users should verify temperature accuracy annually using a NIST-traceable thermometer per internal SOPs or ISO/IEC 17025 clause 6.5.
Are replacement needles and gaskets available as consumables?
Yes—stainless steel needles (19-gauge × 4″), silicone O-rings, and water bath drain valves are stocked globally through authorized distributors with typical lead times under 5 business days.
