Anyan AYAN-DC90G High-Capacity Dry-Block Nitrogen Evaporator
| Brand | Anyan (Hangzhou Anyan Instrument Co., Ltd.) |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Country of Manufacture | China |
| Model | AYAN-DC90G |
| Price Range | USD 6,700 – 7,000 (FOB) |
| Heating Method | Dry-block heating |
| Temperature Range | Ambient to 100 °C |
| Temperature Stability | ±0.5 °C |
| Sample Capacity | 90 positions |
| Tube Diameter Compatibility | 10–29 mm |
| Nitrogen Flow Rate | 30 L/min |
| Heating Power | 300 W |
| Control Interface | 7-inch capacitive touchscreen |
| Programmable Segments | 50-step temperature ramping |
| Independent Gas Channel Control | 15 channels |
| Pressure Regulation Range | 0–0.8 MPa |
| Preheated Nitrogen Output | ~45 °C |
| Visual Access | Four-sided transparent chamber with dual observation windows |
| Sample Tray | Drawer-type sliding rack |
| Safety Features | Dual-sealed door system, built-in exhaust fan, over-temperature alarm, grounded 3-pin power input |
Overview
The Anyan AYAN-DC90G High-Capacity Dry-Block Nitrogen Evaporator is an engineered solution for parallel sample concentration in analytical, environmental, pharmaceutical, and food testing laboratories. It operates on the principle of gentle, inert gas-assisted solvent evaporation—using precisely controlled, preheated nitrogen flow directed onto the surface of liquid samples within heated dry-block wells. Unlike water-bath nitrogen evaporators, the dry-block design eliminates moisture-related contamination risks, ensures rapid thermal response, and maintains strict separation between heating elements and sample vessels. The system supports up to 90 sample positions simultaneously, making it suitable for high-throughput workflows where reproducibility, traceability, and operator safety are critical. Its architecture complies with fundamental laboratory safety requirements—including electrical grounding (IEC 61010-1), thermal containment, and inert gas handling protocols—and is intended for use by trained personnel in controlled environments such as fume hoods or ventilated lab enclosures.
Key Features
- 7-inch capacitive touchscreen interface with intuitive navigation and real-time parameter monitoring
- 50-segment programmable temperature ramping across five operational modes (e.g., hold, ramp, step, gradient, and custom sequence)
- Dry-block heating module constructed from aerospace-grade aluminum alloy—ensuring uniform thermal distribution, rapid equilibration (<6 min to 100 °C), and corrosion resistance
- Four-sided transparent chamber with dual front/side observation windows and drawer-style sample tray for full visual access and ergonomic loading/unloading
- Dual-mode needle height adjustment: fine-tuning (0.1 mm increments) and rapid lift (motorized vertical travel >80 mm) without manual intervention
- Integrated nitrogen preheating system delivering consistent ~45 °C gas to prevent condensation at the needle tip and minimize cross-contamination
- 15 independent electromagnetic flow valves with digital pressure regulation (0–0.8 MPa), enabling precise per-channel gas delivery and optimized nitrogen consumption
- Dual-sealed door assembly with silicone gasket and internal recirculating exhaust fan—eliminating volatile leakage and reducing dependency on external ventilation infrastructure
- Built-in data logging capability storing ≥100 run histories with timestamps, setpoints, actual temperatures, and alarm events
- Comprehensive safety suite: over-temperature cutoff, ground-fault protection, automatic shutdown on door opening, and audible/visual alarms
Sample Compatibility & Compliance
The AYAN-DC90G accommodates standard glass test tubes, centrifuge tubes, and vials with outer diameters ranging from 10 to 29 mm. Its modular dry-block design allows interchangeable heating blocks—supporting customization for specialized vessel geometries upon request. The instrument is not intended for solvents with flash points below 100 °C (e.g., diethyl ether, petroleum ether) or aggressive reagents (strong acids/bases), per ICH Q5C and ISO/IEC 17025 guidance on equipment suitability. While not certified to FDA 21 CFR Part 11 out-of-the-box, its audit-trail-capable data storage and user-access-controlled settings align with GLP/GMP documentation prerequisites when integrated into validated laboratory workflows. All electrical components meet CE marking requirements under Directive 2014/30/EU (EMC) and 2014/35/EU (LVD).
Software & Data Management
The embedded firmware supports local storage of method files, runtime logs, and calibration records directly on internal flash memory. Each saved protocol includes temperature profiles, gas pressure setpoints, timing parameters, and user ID tags. Export is available via USB port in CSV format for integration with LIMS or ELN platforms. No proprietary software installation is required; however, optional PC-based configuration utilities (Windows/macOS compatible) enable batch method deployment, remote diagnostics, and PDF report generation—including compliance-ready headers with instrument ID, operator name, date/time stamps, and deviation flags. Audit trails retain metadata for ≥12 months unless manually cleared by administrator-level credentials.
Applications
This evaporator serves core applications in regulated and research settings: residual solvent removal prior to GC/HPLC analysis (per USP ); pesticide residue concentration in food safety testing (AOAC 2007.01); steroid and metabolite enrichment in clinical toxicology; PCB and PAH extraction in environmental monitoring (EPA Method 3510C); and derivatization-ready sample prep in forensic chemistry. Its dry-block architecture is particularly advantageous for moisture-sensitive analytes (e.g., organometallics, hygroscopic standards) and when working with volatile deuterated solvents used in NMR sample preparation.
FAQ
Is the AYAN-DC90G suitable for flammable solvents like hexane or acetone?
No. It must not be used with substances having flash points below 100 °C. Operation requires placement inside a certified fume hood with continuous airflow.
Can the heating block be replaced with custom dimensions?
Yes. Anodized aluminum blocks for non-standard tube sizes (e.g., 30 mm OD or microplate formats) are available as optional accessories subject to minimum order quantities.
Does the system support 21 CFR Part 11-compliant electronic signatures?
Not natively—but when deployed with validated third-party LIMS interfaces and documented procedural controls, it meets functional requirements for electronic record integrity.
What maintenance is required for long-term accuracy?
Annual verification of temperature uniformity (per ASTM E220) and gas flow calibration using NIST-traceable meters is recommended. Cleaning involves isopropyl alcohol wipes on exterior surfaces and periodic inspection of O-rings and needle seals.
Is nitrogen purity specification defined for optimal performance?
Instrument performance assumes ≥99.998% pure nitrogen (Grade 5.0). Lower grades may introduce moisture or oxygen interference, especially during extended runs with thermally labile compounds.
