Pribolab EQ-EVP15 Nitrogen Evaporator

Overview

The Pribolab EQ-EVP15 Nitrogen Evaporator is an engineered solution for gentle, oxygen-free concentration of volatile liquid samples in analytical laboratories. It operates on the principle of controlled nitrogen gas flow directed tangentially across the surface of heated sample vials, accelerating solvent evaporation while minimizing thermal degradation and analyte oxidation. Designed specifically for compatibility with HPLC, GC, GC-MS, and LC-MS sample preparation workflows, the EQ-EVP15 supports reproducible analyte recovery during post-extraction clean-up steps—particularly critical for trace-level quantitation of pesticides, mycotoxins, pharmaceutical residues, and environmental contaminants. Its aluminum heating block ensures rapid thermal response and spatial uniformity, while real-time dual digital readouts provide immediate verification of thermal setpoint adherence and system stability.

Key Features

• Modular heating block configurations: interchangeable 12-position and 24-position aluminum blocks optimized for standard 10–15 mL glass tubes and 1.5 mL microcentrifuge vials.
• Independent nitrogen delivery channels per sample port—eliminating cross-contamination risk and enabling selective activation of individual positions.
• Precision temperature control system with ±0.1°C accuracy and ambient +5°C to 100°C adjustable range; includes programmable upper-limit cutoff (100°C) and deviation alert (±5°C from setpoint) for GLP-compliant operation.
• Integrated spill containment tray beneath the heating block prevents accidental liquid ingress into internal electronics—enhancing operational safety and long-term reliability.
• Four-digit LED displays simultaneously indicate both user-defined temperature setpoint and real-time measured block temperature at multiple sensing points.
• Rugged mechanical architecture and thermally optimized block geometry support continuous operation at elevated temperatures without thermal drift or component fatigue.

Sample Compatibility & Compliance

The EQ-EVP15 accommodates a broad range of sample containers used in regulated analytical environments, including borosilicate glass test tubes (10–16 mm OD), screw-cap vials, and conical-bottom microcentrifuge tubes. Its inert nitrogen environment preserves labile compounds such as unsaturated fatty acids, steroid hormones, and nitrosamines during evaporation. The instrument complies with general laboratory safety standards (IEC 61010-1) and supports audit-ready workflows when integrated with documented SOPs. While not intrinsically 21 CFR Part 11 compliant, its stable thermal performance and discrete channel control facilitate validation under ISO/IEC 17025, USP , and internal GMP/GLP protocols for sample preparation equipment qualification.

Software & Data Management

The EQ-EVP15 is a standalone benchtop instrument with no embedded software or network interface. All operational parameters are configured manually via front-panel controls, ensuring deterministic behavior and eliminating firmware-related variability. Temperature logs are not automatically recorded; however, the dual-display architecture enables manual entry into laboratory notebooks or LIMS-compatible spreadsheets. For labs requiring electronic record retention, integration with external data loggers (e.g., calibrated thermocouple arrays connected to USB-based DAQ systems) is supported through standard analog output options (available upon request). This design prioritizes operational transparency and regulatory traceability over automated feature bloat.

Applications

• Routine cleanup of QuEChERS extracts prior to GC-MS analysis of pesticide residues in food matrices.
• Concentration of immunoaffinity-purified aflatoxin fractions before HPLC-FLD quantification.
• Pre-concentration of derivatized carbamate metabolites in urine for LC-MS/MS bioanalysis.
• Drying of solid-phase extraction (SPE) eluates containing thermally sensitive phytochemicals (e.g., anthocyanins, glucosinolates).
• Removal of chlorinated solvents from environmental water extracts prior to EPA Method 525.3 analysis.
• Parallel processing of clinical plasma samples during therapeutic drug monitoring workflows.

FAQ

What types of solvents are compatible with the EQ-EVP15?
Methanol, acetonitrile, ethyl acetate, dichloromethane, hexane, and acetone are routinely used. Avoid highly flammable solvents above their flash point—always operate within certified fume hood environments.
Can the EQ-EVP15 be used under inert atmosphere conditions beyond nitrogen?
Yes—argon or helium may be substituted provided gas pressure and flow rate remain within the specified operating range (0–15 L/min, adjustable via external regulator).
Is calibration documentation included with shipment?
A factory calibration certificate verifying temperature accuracy across the full range is supplied. Users must perform periodic in-house verification using NIST-traceable thermometers per ISO/IEC 17025 Section 6.5.
How is cross-contamination prevented between samples?
Each gas channel is pneumatically isolated; no shared manifolds exist between ports. Physical separation of blow needles and independent height adjustment further reduce splash transfer risk.
Does the unit support programmable ramping or multi-step temperature profiles?
No—the EQ-EVP15 maintains a single static temperature setpoint. For gradient evaporation, manual intervention or external timer-based staging is required.