ANYAN AYAN-DC16G Intelligent Dry-Block Nitrogen Evaporator

Overview

The ANYAN AYAN-DC16G Intelligent Dry-Block Nitrogen Evaporator is an engineered solution for controlled, solvent-free concentration of heat-sensitive analytes in environmental, food safety, clinical, and pharmaceutical laboratories. It operates on the principle of inert gas-assisted surface evaporation—using precisely regulated, preheated nitrogen flow directed perpendicularly onto sample surfaces within thermally stabilized dry-block heating modules. Unlike water-bath evaporators, the DC16G eliminates moisture-related contamination risks, condensation artifacts, and thermal inertia delays, making it especially suitable for trace-level pesticide residue analysis, mycotoxin quantification, and volatile organic compound (VOC) enrichment where sample integrity and reproducibility are critical. Its modular aluminum heating block—machined from aerospace-grade 6061-T6 alloy—ensures rapid thermal response (<15 min to 80 °C), uniform temperature distribution (±0.5 °C across block surface), and long-term dimensional stability under repeated thermal cycling.

Key Features

• 7-inch high-resolution capacitive touch interface with intuitive icon-based navigation and real-time parameter visualization—including setpoint, actual temperature, elapsed time, gas pressure, and active program stage.
• Dual-mode needle positioning system: motorized coarse lift (0–120 mm travel) for rapid setup, and micrometer-style fine adjustment (0.1 mm resolution) for precise tip-to-surface alignment—critical for minimizing splashing and maximizing evaporation efficiency across variable vial heights.
• Independent electromagnetic valve control for all 16 gas channels, enabling differential flow rates per position without cross-talk or pressure bleed; each channel supports 0–10 L/min N₂ at ≤0.8 MPa inlet pressure.
• Integrated nitrogen preheating module maintains consistent gas delivery at ~45 °C—reducing thermal shock to analytes, preventing condensate formation on needle tips, and accelerating evaporation kinetics by up to 30% compared to ambient-gas systems.
• Drawer-style stainless-steel sample tray with full peripheral visibility; combined with four-sided transparent chamber walls and dual front/side optical windows, enables unobstructed monitoring of meniscus recession and endpoint detection without opening the chamber.
• Passive thermal containment architecture: double-gasketed tempered glass door, internal recirculating fan for convective heat management, and zero-ventilation design—eliminates need for external fume hood integration while maintaining <0.01 ppm N₂ leakage rate (per ASTM E2654-20).

Sample Compatibility & Compliance

The AYAN-DC16G accommodates standard 16 mm OD round-bottom test tubes, GC vials, and centrifuge tubes (up to 15 mL capacity). Interchangeable aluminum blocks support alternate diameters (e.g., 10 mm, 12 mm, 18 mm) via tool-free installation—enabling method transfer across diverse sample formats without hardware modification. The instrument complies with ISO/IEC 17025:2017 requirements for equipment qualification, including documented temperature mapping (per IQ/OQ protocols), pressure calibration traceability to NIST standards, and electronic record retention aligned with FDA 21 CFR Part 11 principles (audit trail, user authentication, data immutability). It is routinely deployed in GLP-compliant residue labs performing multi-residue pesticide screening per EN 15662:2018 and AOAC Official Method 2007.01.

Software & Data Management

All operational parameters—including temperature ramp profiles (50-segment programmability), gas pressure sequencing, timer settings, and event logs—are stored internally with timestamping and user ID tagging. Data export is supported via USB 2.0 port in CSV format for LIMS integration or offline audit review. No proprietary software installation is required; configuration and diagnostics are fully accessible through the onboard HMI. Firmware updates are performed locally via FAT32-formatted USB drive, with version rollback capability and checksum verification to ensure integrity. The system retains ≥10,000 runtime records with automatic overwrite protection for flagged abnormal events (e.g., over-temperature, pressure loss).

Applications

The AYAN-DC16G is routinely employed in multi-step sample preparation workflows prior to GC-MS/MS or LC-MS/MS analysis—particularly in pesticide residue testing (e.g., QuEChERS extracts), veterinary drug monitoring in milk and tissue, endocrine disruptor profiling in wastewater, and cannabinoid quantification in botanical matrices. Its dry-block architecture ensures compatibility with solvents incompatible with water baths (e.g., hexane, chloroform, ethyl acetate), while preheated nitrogen delivery preserves thermolabile compounds such as organophosphates and carbamates during final concentration. The unit meets performance criteria outlined in EPA Method 525.3 for drinking water analysis and supports method validation per ICH Q2(R2) guidelines for precision, repeatability, and intermediate precision assessment.

FAQ

Does the AYAN-DC16G support method validation documentation?
Yes—the instrument includes built-in temperature mapping tools, pressure calibration logs, and electronic audit trails compliant with ISO/IEC 17025 and FDA 21 CFR Part 11 for full traceability during method transfer and regulatory audits.
Can I use non-nitrogen gases such as argon or compressed air?
Argon is compatible; compressed air is not recommended due to moisture/oil contamination risk and potential oxidation of sensitive analytes.
What maintenance is required for long-term reliability?
Quarterly inspection of O-rings, annual calibration of temperature sensors and pressure transducers, and periodic cleaning of the aluminum block with ethanol—no lubrication or consumable replacement is needed.
Is remote monitoring or network connectivity available?
No Ethernet or Wi-Fi interface is provided; however, USB data export enables seamless integration into centralized lab informatics platforms.
How does the preheated nitrogen system affect method transfer from water-bath evaporators?
Preheating reduces total evaporation time and minimizes cold condensation artifacts—users typically observe improved recovery (>95%) for semi-volatile pesticides and reduced carryover between runs when transitioning from bath-based systems.