PreeKem Cash Cow High-Throughput Microwave Digestion System
| Brand | PreeKem |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Product Origin | Domestic (China) |
| Model | Cash Cow |
| Price Range | USD 21,000 – 28,000 (FOB) |
| Cavity Class | Industrial-Grade |
| Sample Capacity | 40 vessels/batch |
| Microwave Source | Dual Magnetron |
| Max Temperature | 400 °C |
| Max Pressure | 2200 PSI |
Overview
The PreeKem Cash Cow High-Throughput Microwave Digestion System is an industrial-grade sample preparation platform engineered for reproducible, high-efficiency closed-vessel microwave-assisted acid digestion. It operates on the principle of controlled microwave energy absorption by polar molecules—primarily nitric, hydrochloric, and hydrofluoric acids—within sealed quartz or TFM-lined reaction vessels. This enables rapid, uniform thermal transfer to solid or semi-solid matrices, facilitating complete mineralization of organic and inorganic samples under precisely regulated temperature and pressure conditions. Designed for laboratories handling large-volume routine analysis—such as environmental monitoring labs, food safety testing centers, geological survey institutes, and pharmaceutical QC departments—the Cash Cow delivers robust performance in compliance with standard methods including EPA Method 3051A/3052, ISO 15587-1, and ASTM D5511/D5512.
Key Features
- Industrial-class 316L stainless steel cavity with five-year corrosion-resistance warranty—engineered for long-term exposure to aggressive acid vapors and condensates.
- Dual magnetron microwave generation (2 × 1000 W) ensures homogeneous field distribution and stable power delivery across all 40 vessel positions.
- Full-batch real-time pressure monitoring: independent pressure transducers for each vessel position feed continuous data to the control system; automatic microwave cutoff triggered upon deviation from preset safety thresholds.
- Wireless bottom-infrared temperature sensing with continuous scanning: eliminates thermal lag associated with conventional fiber-optic or platinum RTD probes, enabling accurate measurement of actual sample-zone temperature at the vessel base.
- Self-locking safety door mechanism with dual interlock sensors and emergency stop circuitry—meets IEC 61000-4-3 EMC immunity and IEC 60335-1 mechanical safety requirements.
- High-capacity forced-air cooling system featuring corrosion-resistant centrifugal blower and optimized airflow ducting—reduces post-digestion cooling time by up to 40% compared to passive systems.
Sample Compatibility & Compliance
The Cash Cow supports digestion of diverse sample types—including biological tissues, soil/sediment, food products, polymers, ceramics, metallurgical slags, pharmaceutical excipients, and geological specimens—using standard HNO₃/HF/HClO₄ or HNO₃/H₂O₂ chemistries. All vessel assemblies are compatible with common digestion standards (e.g., USP , ISO 17294-2, EN 13656). The system architecture supports GLP/GMP-aligned operation: audit trail logging, user access levels, electronic signatures, and data integrity features compliant with FDA 21 CFR Part 11 when paired with validated software configurations.
Software & Data Management
The graphical control interface provides synchronized real-time visualization of temperature and pressure profiles across all 40 vessels, with overlayable reference curves and customizable alarm thresholds. Method libraries support automated sequence programming—including ramp-hold-cool cycles, multi-step protocols, and conditional branching based on sensor feedback. Raw data export is available in CSV and XML formats; instrument logs include timestamped metadata for traceability. Optional integration with LIMS via ASTM E1384-compliant drivers enables seamless workflow synchronization in regulated environments.
Applications
- Environmental analysis: heavy metal quantification (As, Cd, Pb, Hg, Cr) in soils, sediments, and wastewater sludge per EPA SW-846 protocols.
- Food and agriculture: nutrient element profiling (Ca, Mg, Fe, Zn, Se) and contaminant screening (Al, Sn, Ni) in cereals, dairy, and plant tissues.
- Geochemical testing: rare earth element (REE) and trace metal recovery from silicate rocks and ores using HF-based digestion.
- Pharmaceutical QA/QC: residual catalyst metal detection (Pd, Pt, Rh) in active pharmaceutical ingredients (APIs) and excipients.
- Materials science: dissolution kinetics studies of ceramic composites and alloy powders under controlled oxidative acid conditions.
FAQ
What safety certifications does the Cash Cow system meet?
It conforms to IEC 61010-1 (Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use) and IEC 61000-4 series for electromagnetic compatibility.
Is method validation support available for regulatory submissions?
Yes—PreeKem provides IQ/OQ documentation templates and application notes aligned with ISO/IEC 17025 and USP analytical instrument qualification guidelines.
Can the system be integrated into a networked lab environment?
Yes, Ethernet connectivity supports remote monitoring, centralized data archiving, and LIMS interfacing via standard TCP/IP protocols.
What maintenance is required for long-term reliability?
Annual calibration of pressure and temperature sensors is recommended; cavity inspection and gasket replacement every 24 months under typical usage (200–300 batches/year).
Are consumables such as digestion vessels supplied by PreeKem?
Yes—TFM-PTFE and quartz vessels, torque tools, vessel racks, and acid-resistant cleaning kits are available as OEM-certified accessories.
