HengAo HPE-24 Parallel Vacuum Concentrator
| Brand | Tianjin HengAo |
|---|---|
| Origin | Tianjin, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Vacuum Centrifugal Concentrator |
| Temperature Range | Ambient +5°C to 100°C |
| Temperature Control Accuracy | ±0.5°C |
| Sample Capacity per Position | 30 mL (24-position configuration) |
| Total Throughput Capacity | 720 mL (24 × 30 mL) |
| Position Designation | “HPE-24” indicates 24 sample positions |
| Quantitative Mode Option | Available with “A” suffix for endpoint volume control (e.g., 0.5 mL or 1.0 mL stop points) |
Overview
The HengAo HPE-24 Parallel Vacuum Concentrator is an engineered solution for high-throughput, reproducible solvent removal under controlled vacuum and temperature conditions. It operates on the principle of simultaneous rotary evaporation combined with vacuum-assisted vapor pressure reduction and regulated heating—enabling rapid, parallel concentration of up to 24 samples without cross-contamination or positional bias. Unlike single-tube concentrators, the HPE-24 utilizes a precisely balanced rotor system coupled with a sealed vacuum chamber and PID-controlled heating block, ensuring uniform thermal distribution and consistent evaporation kinetics across all positions. Designed for laboratories performing routine environmental monitoring, pesticide residue screening, pharmaceutical QC, and preparative chemistry workflows, this instrument supports method standardization in accordance with ISO 17025-accredited environments and aligns with GLP-compliant documentation practices when integrated with validated software protocols.
Key Features
- 24-position parallel processing with independent tube alignment and centrifugal force stabilization (up to 500 × g nominal)
- PID-regulated heating block delivering precise temperature control from ambient +5°C to 100°C (±0.5°C accuracy over full range)
- Integrated vacuum pump interface compatible with oil-free diaphragm pumps (ultimate vacuum ≤ 5 mbar recommended)
- Modular rotor design accommodating standard 15–18 mm OD glass or polypropylene tubes; optional adapters for microcentrifuge formats
- Digital user interface with real-time display of setpoint temperature, vacuum level (if sensor-equipped), and run time
- Programmable ramp-hold profiles supporting multi-step concentration protocols (e.g., gentle initial drying followed by elevated temperature finish)
- Optional “A-series” configuration available for quantitative endpoint termination at user-defined residual volumes (0.5 mL or 1.0 mL), achieved via optical liquid-level detection or timed evaporation algorithms
Sample Compatibility & Compliance
The HPE-24 accommodates a broad spectrum of solvents—including water, methanol, acetonitrile, ethyl acetate, dichloromethane, and hexane—across diverse sample matrices such as aqueous extracts, organic-phase eluates, hydrolyzed tissue digests, and derivatized standards. Its stainless-steel chamber and PTFE-coated rotor components resist corrosion from acidic or halogenated vapors. The system meets mechanical safety requirements per IEC 61010-1 and carries CE marking for laboratory equipment. While not intrinsically rated for explosive atmospheres, it may be operated in fume hoods when processing volatile or low-flashpoint solvents. For regulated environments, audit trails and electronic records can be generated when paired with compliant LIMS or ELN platforms satisfying FDA 21 CFR Part 11 requirements.
Software & Data Management
The base HPE-24 operates via standalone front-panel controls; however, optional RS-232 or USB communication modules enable integration with third-party laboratory automation systems. Customizable CSV log files capture timestamped temperature, vacuum status, and elapsed runtime per batch. When deployed with HengAo’s optional PC-based control suite (v3.2+), users gain access to method library storage, remote start/stop, alarm history export, and calibration certificate tracking—features essential for ISO/IEC 17025 internal audits and method validation reports. All firmware adheres to deterministic real-time scheduling principles to ensure timing integrity during critical endpoint detection sequences.
Applications
- Environmental testing labs: Parallel concentration of EPA Method 505/525 extracts prior to GC-MS or LC-MS/MS analysis
- Agrochemical QA/QC: Reduction of QuEChERS supernatants across 24 replicates while preserving thermolabile analytes
- Clinical research: Pre-concentration of urine or plasma fractions for steroid profiling or metabolite screening
- Academic synthesis cores: Removal of reaction solvents following parallel Suzuki couplings or peptide couplings
- Food safety labs: Final volume adjustment of AOAC 2007.01 extracts prior to confirmatory analysis
- Reference material preparation: Uniform drying of CRM stock solutions into defined residual volumes for gravimetric dilution
FAQ
What is the maximum recommended rotational speed for the HPE-24 rotor?
The standard rotor is rated for continuous operation at 1,200 rpm; higher speeds require optional high-speed rotor certification and are not supported in default configurations.
Can the HPE-24 be used with chloroform or other dense solvents?
Yes—provided appropriate vacuum pump oil compatibility is maintained and condensate traps are installed upstream of the pump inlet.
Is calibration traceable to NIST standards?
Temperature sensors ship with individual calibration certificates traceable to national metrology institutes; field recalibration tools and procedures are included in the service manual.
Does the “A” suffix model include automatic liquid-level sensing hardware?
Quantitative models integrate dual-wavelength optical sensors positioned beneath each tube slot; detection sensitivity is optimized for clear to moderately turbid aqueous and organic phases.
What maintenance intervals are recommended for routine operation?
Vacuum line filters should be replaced every 200 hours of cumulative use; heating block surface inspection and rotor balance verification are advised quarterly or after 500 cycles.
