AYAN-DC10G Dry-Block Nitrogen Evaporator with Drawer-Type Sample Access

Overview

The AYAN-DC10G is a precision-engineered dry-block nitrogen evaporator designed for reproducible, contamination-free solvent removal in analytical laboratories. Unlike water bath-based systems, this instrument employs a solid aluminum heating block—free of liquid media—to eliminate moisture-related sample interference, cross-contamination, and thermal instability. Its core operation relies on controlled, heated nitrogen gas flow directed perpendicularly onto sample surfaces within standardized test tubes, accelerating solvent volatilization while preserving thermally labile analytes. The unit integrates programmable thermal management, motorized vertical positioning, and sealed gas delivery to support GLP-compliant workflows in environmental testing, clinical toxicology, food safety, and pharmaceutical QC labs.

Key Features

• 7-inch capacitive touchscreen interface with intuitive navigation and real-time system status monitoring
• 50-segment programmable temperature ramping, enabling precise thermal profiling across multiple evaporation stages
• Dry-block heating module fabricated from high-purity aerospace-grade aluminum—ensuring rapid thermal response (<6 min to 100°C) and exceptional temperature uniformity (±0.5°C)
• Drawer-style sliding sample tray with full frontal and lateral visibility—eliminating blind spots during liquid level observation and minimizing manual handling errors
• Dual-mode needle actuation: fine-tuning (0.1 mm resolution) and rapid lift (≤3 s full stroke), eliminating manual height adjustment and reducing operator fatigue
• Integrated pressure-balancing manifold with independent solenoid valves per channel—maintaining consistent gas distribution even at low-flow conditions (10–50 mL/min)
• Nitrogen pre-heating system (setpoint ~45°C) prevents condensation on needle tips and avoids cold-trapping of volatile analytes, thereby improving recovery rates and method robustness
• Double-sealed viewing window assembly with internal recirculating fan—ensuring zero ambient leakage and eliminating dependency on external fume hoods
• Onboard data logging with timestamped temperature, gas flow, and positional history—supporting audit-ready record retention per FDA 21 CFR Part 11 requirements

Sample Compatibility & Compliance

The AYAN-DC10G accommodates standard 16 mm OD borosilicate glass tubes (compatible with common SPE cartridges and microcentrifuge formats). Its sealed architecture meets ISO/IEC 17025 environmental containment expectations for volatile organic compound (VOC) processing. While not certified to UL or CE standards out-of-the-box, the system’s electrical design complies with IEC 61010-1 safety principles for laboratory equipment. It supports method validation under USP , EPA Method 525.3, and AOAC 2007.01 when operated within defined parameter envelopes (e.g., ≤120°C for pesticide residue analysis).

Software & Data Management

No proprietary PC software is required—the device operates autonomously via embedded firmware. All 50 program profiles are stored internally with non-volatile memory retention (>10,000 cycles). Each run logs temperature setpoints, actual block temperature (recorded every 5 s), total elapsed time, and final gas flow values. Export is performed via USB flash drive in CSV format, compatible with LIMS integration and statistical process control (SPC) platforms. Audit trails include user ID (if enabled), start/stop timestamps, and any parameter overrides—fully traceable for GMP/GLP audits.

Applications

• Concentration of extracts prior to GC-MS or LC-MS/MS analysis in residue testing (pesticides, veterinary drugs, mycotoxins)
• Preparative cleanup steps in EPA SW-846 Methods 3550C and 3540C
• High-throughput sample prep for clinical urine drug screening panels
• Stabilization of unstable metabolites during pharmacokinetic studies
• Reduction of matrix interference in fatty acid methyl ester (FAME) analysis

FAQ

Is the AYAN-DC10G suitable for use with chlorinated solvents such as chloroform or methylene chloride?
Yes—provided the instrument is operated inside a certified fume hood or connected to an active exhaust system, as its housing is not rated for full vapor containment of highly volatile halogenated compounds.
Can the heating block be replaced with alternative configurations (e.g., for 10 mm or 25 mm tubes)?
Yes—the modular aluminum block is field-replaceable; optional blocks for 10 mm, 13 mm, and 25 mm tube diameters are available as accessories (part numbers: AYAN-BLK-10, AYAN-BLK-13, AYAN-BLK-25).
What is the maximum recommended nitrogen inlet pressure?
The integrated regulator accepts supply pressures between 0.2–0.6 MPa; optimal performance is achieved at 0.35 MPa input with downstream flow regulation.
Does the system support remote monitoring or Ethernet connectivity?
No—this model lacks network interfaces; remote supervision requires integration via PLC-compatible digital I/O signals (available upon request for OEM configurations).
How often should the gas distribution manifold be serviced?
Under normal use (≤8 hrs/day), inspect and clean the stainless-steel needle ports every 6 months using 70% ethanol and compressed air; replace O-rings annually per maintenance log recommendations.