Chengmengweiye CM200-1 Dry-Block Nitrogen Evaporator
| Brand | Chengmengweiye |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | CM200-1 |
| Price | USD 1,150 (FOB) |
| Heating Method | Dry-block heating |
| Temperature Range | Ambient +5°C to 150°C |
| Temperature Stability | ±0.5°C at 100°C |
| Tube Diameter Compatibility | 15 mm |
| Nitrogen Flow Rate | 0–10 L/min |
| Sample Positions | 12 |
| Heating Power | 200 W |
| 升温 Time (40°C → 150°C) | ≤30 min |
| Temp Accuracy (40–100°C) | ±0.5°C |
| Temp Accuracy (100–150°C) | ±1°C |
| Max Timer Setting | 99 h 59 min |
| Max Operating Pressure | ≤0.1 MPa |
| Dimensions (W×D×H) | 280 × 240 × 500 mm |
| Standard Block | CM06 (12-position, 15 mm diameter) |
Overview
The Chengmengweiye CM200-1 Dry-Block Nitrogen Evaporator is an engineered solution for parallel solvent removal and sample concentration in analytical laboratories. It operates on the principle of inert gas-assisted evaporation: nitrogen gas—delivered via adjustable stainless-steel needles—is directed tangentially across the surface of heated liquid samples, accelerating solvent volatilization while minimizing oxidation, thermal degradation, or cross-contamination. Unlike water-bath evaporators, the dry-block design eliminates fluid contamination risks, ensures rapid thermal response, and supports precise temperature control across all 12 sample positions. This system is widely deployed in pharmaceutical QC/QA workflows, clinical toxicology, environmental residue analysis, and preparative LC-MS sample preparation where reproducible, low-oxygen concentration is critical.
Key Features
- Dry-block aluminum heating module with uniform thermal distribution and <30-minute ramp time from 40°C to 150°C
- Independent on/off and fine-flow control for each of the 12 nitrogen delivery channels—enabling selective activation and gas conservation
- Vertically adjustable gas manifold with standardized 150 mm stainless-steel needles; compatible with interchangeable modular blocks (CM06–CM18)
- LED digital interface displaying real-time block temperature and countdown timer (up to 99 h 59 min) with synchronous update
- Over-temperature cutoff circuit and self-diagnostic alarm system compliant with IEC 61010-1 safety requirements
- Compact footprint (280 × 240 × 500 mm) and ventilation-ready chassis—designed for safe integration into fume hoods during volatile or toxic solvent handling
- Modular block system supporting tube diameters from 10 mm to 29 mm; standard configuration includes CM06 block (12 × 15 mm)
Sample Compatibility & Compliance
The CM200-1 accommodates a broad range of sample containers—including culture tubes, GC vials, and conical-bottom centrifuge tubes—via its field-replaceable block architecture. All contact surfaces are electropolished stainless steel or anodized aluminum, ensuring chemical resistance to common organic solvents (e.g., acetonitrile, methanol, ethyl acetate, hexane). The instrument meets general laboratory equipment safety standards per IEC 61010-1 and is suitable for use under GLP-compliant environments when paired with documented calibration procedures and maintenance logs. While not intrinsically certified for hazardous area operation, its low-power (200 W), non-sparking heater design and optional flow-regulating valve facilitate safe deployment in Class I, Division 2 laboratory zones.
Software & Data Management
The CM200-1 operates as a standalone benchtop instrument without embedded software or network connectivity. Temperature and timer settings are manually configured and retained via non-volatile memory. For regulated environments requiring audit trails, users may integrate external data loggers (e.g., calibrated thermocouple-based recorders) connected to the block’s auxiliary PT100 output port (available upon request). The device supports 21 CFR Part 11 readiness when used within a validated procedural framework—including operator training records, change control documentation, and periodic performance verification against NIST-traceable references.
Applications
- Routine concentration of extracts prior to GC-FID, GC-MS, or HPLC-UV analysis in food safety and environmental testing labs
- High-throughput sample cleanup in bioanalytical method development—especially for plasma, urine, and tissue homogenates
- Preparative desolvation of SPE eluates and LLE fractions under inert atmosphere to preserve labile analytes (e.g., prostaglandins, catecholamines)
- Residue-level pesticide screening per ISO 17025-accredited protocols, where consistent evaporation kinetics directly impact recovery precision
- QC release testing of topical formulations, where residual solvent limits must comply with ICH Q3C guidelines
FAQ
What tube sizes does the CM200-1 support out of the box?
The standard CM06 block accommodates twelve 15 mm OD tubes. Additional blocks (CM07 for 16 mm, CM08 for 19 mm, etc.) are available separately and fully intercompatible.
Can the CM200-1 be used with gases other than nitrogen?
Yes—provided the gas is inert, oil-free, and supplied within the specified pressure range (≤0.1 MPa); argon is commonly substituted for enhanced oxidation suppression.
Is temperature calibration traceable to national standards?
The unit ships with factory calibration at three points (40°C, 100°C, 150°C); users may perform in-house verification using a NIST-traceable thermometer inserted into designated calibration wells.
Does the system include a nitrogen generator or regulator?
No—users must supply externally regulated nitrogen (0–10 L/min, ≤0.1 MPa) via standard CGA-580 or equivalent inlet fitting; optional inline flow meters and pressure regulators are available as accessories.
How often should preventive maintenance be performed?
We recommend quarterly visual inspection of needle alignment, block surface integrity, and electrical connections; annual recalibration is advised for applications governed by ISO/IEC 17025 or FDA audit requirements.
