ANYAN AYAN-DC16G Fully Enclosed Visual Dry Block Nitrogen Evaporator

Overview

The ANYAN AYAN-DC16G Fully Enclosed Visual Dry Block Nitrogen Evaporator is an engineered solution for controlled, inert-gas-assisted solvent removal in analytical sample preparation workflows. Unlike water bath nitrogen evaporators, this system employs a precisely regulated dry block heating architecture—eliminating moisture-related contamination risks and enabling stable thermal environments under ambient laboratory conditions. It operates on the principle of directed laminar nitrogen flow across heated sample surfaces, accelerating solvent volatilization while minimizing oxidative degradation and analyte loss. The instrument is designed for applications requiring strict environmental containment, reproducible thermal profiles, and real-time visual monitoring—particularly where volatile organic solvents, thermolabile compounds, or low-concentration analytes are involved. Its fully enclosed chamber with dual-seal door assembly and integrated recirculating fan ensures zero fugitive emissions, eliminating dependence on external fume hoods and supporting compliance with indoor air quality guidelines (e.g., OSHA 29 CFR 1910.1200 and ISO 14644-1 Class 8 cleanroom-compatible operation).

Key Features

• 7-inch high-resolution LCD touch interface with intuitive navigation, supporting multi-language firmware (English default) and password-protected parameter locking for GLP/GMP environments.
• Dry block heating module fabricated from aerospace-grade aluminum alloy—ensuring rapid thermal response (<30 min to 100 °C), uniform temperature distribution (±0.5 °C across all 16 positions), and corrosion resistance to common organic solvents.
• Four-sided optical-grade acrylic viewing windows provide unobstructed, parallax-free observation of all sample vials simultaneously—enabling precise endpoint detection without opening the chamber.
• Drawer-style sliding sample tray allows full-access loading/unloading while maintaining chamber integrity; compatible with standard 16 mm OD test tubes, GC vials, and 15 mL centrifuge tubes (adapters available).
• Dual-mode needle actuation: motorized coarse lift (0–120 mm travel) for rapid positioning, plus micrometer-adjustable fine control (0.1 mm resolution) for optimal gas-to-surface distance calibration.
• 16-channel independent electromagnetic flow control with real-time pressure feedback—each channel maintains consistent 0–0.8 MPa regulation, eliminating cross-channel drift during extended runs.
• Integrated nitrogen preheating subsystem elevates inlet gas to ~45 °C prior to dispersion, reducing condensation at the needle tip and preventing back-diffusion of condensed vapors into samples.
• Built-in data logger records timestamped temperature setpoints, actual block temperature, gas pressure, timer status, and alarm events—exportable via USB for audit trail generation per FDA 21 CFR Part 11 requirements.

Sample Compatibility & Compliance

The AYAN-DC16G accommodates a wide range of sample containers including 1.5–15 mL glass or polypropylene vials, with standardized 16 mm diameter modules (custom diameters available upon request). It supports aqueous, methanolic, acetonitrile-, chloroform-, and ethyl acetate-based extracts—provided vapor pressures remain below 100 kPa at operating temperatures. The system conforms to IEC 61010-1:2010 safety standards for laboratory electrical equipment and incorporates overtemperature cutoff (105 °C), door-open interlock, and automatic gas shutoff on power failure. Its sealed architecture meets ASTM D5291-22 criteria for closed-system solvent evaporation in petroleum and environmental testing labs.

Software & Data Management

Firmware supports up to 50 programmable temperature segments per method, with ramp/soak profiles configurable in 1 °C increments and 1 min time resolution. All methods are stored in non-volatile memory (100+ protocols). USB-C port enables firmware updates and CSV-formatted log export (including date/time stamps, PID loop diagnostics, and event flags). Audit trail functionality records user ID, parameter changes, and execution timestamps—fully traceable for regulatory submissions. Optional PC software (Windows 10/11) provides remote monitoring, batch report generation, and integration with LIMS via ASCII command protocol.

Applications

This evaporator is routinely deployed in pesticide residue analysis (AOAC 2007.01), pharmaceutical impurity profiling (ICH Q2(R2)), clinical toxicology screening (CLIA-waived workflows), and environmental contaminant quantification (EPA Method 525.3). It serves as a critical front-end tool for LC-MS/MS, GC-MS, and HPLC sample concentration—especially where matrix interference, analyte volatility, or low recovery rates demand inert, temperature-stabilized drying. Its dry block design is preferred for halogenated solvents (e.g., DCM, chloroform) and pyridine-based extractions where water bath immersion poses hydrolysis or emulsion risks.

FAQ

Is the AYAN-DC16G suitable for flammable solvent evaporation?
Yes—its fully enclosed, spark-free design and nitrogen-purged chamber meet NFPA 45 requirements for Class I, Division 2 hazardous locations when operated with certified nitrogen supply lines.
Can the heating block be replaced with alternative configurations?
Yes—modular blocks for 10 mm, 12 mm, 16 mm, and 19 mm tube diameters are available as field-installable accessories, each calibrated for thermal uniformity.
Does the system support validation documentation (IQ/OQ/PQ)?
Comprehensive validation templates—including sensor calibration certificates, temperature mapping reports, and gas flow linearity verification protocols—are provided with purchase.
What maintenance is required for long-term reliability?
Annual inspection of electromagnetic valves, fan filter replacement, and verification of door seal compression force using supplied torque wrench—no lubrication or consumable parts required.
How does the preheated nitrogen function integrate with method development?
Preheat temperature is fixed at 45 °C (non-adjustable) to ensure condensation suppression across the operational range; it is activated automatically upon gas initiation and de-energized during idle periods to conserve energy.