Savillex HPX-200 PFA-Coated Graphite Electric Heating Plate

Overview

The Savillex HPX-200 is a high-performance, corrosion-resistant electric heating plate engineered for ultra-trace and high-purity sample preparation workflows in geochemical, environmental, nuclear, and semiconductor laboratories. Unlike conventional ceramic or stainless-steel hotplates, the HPX-200 employs a monolithic block of ultra-pure, semiconductor-grade graphite as its core heating substrate—selected for its exceptional thermal mass, rapid heat retention, and minimal outgassing under sustained elevated temperatures. The entire graphite surface—including edges and mounting interfaces—is uniformly coated with perfluoroalkoxy alkane (PFA), a fluoropolymer offering superior chemical inertness to concentrated acids (e.g., HF, HNO₃, HCl, H₂SO₄), strong bases, and aggressive oxidants across the full operating range (ambient to 240 °C). This PFA encapsulation eliminates metal leaching, prevents cross-contamination, and ensures compliance with stringent trace-metal analysis protocols such as EPA Method 3050B, ASTM D5683, and ISO 11885.

Key Features

• Monolithic semiconductor-grade graphite heating block with full-surface PFA coating—resistant to HF, aqua regia, and molten salts
• Optimized thermal architecture delivering ±2 °C uniformity across the 415 mm × 212 mm active heating zone at 150 °C, verified per ASTM E220 calibration standards
• Integrated PTFE thermal barrier skirt surrounding the heating surface, minimizing edge heat loss and protecting lab personnel from incidental contact
• Digital LED controller with precision PID temperature regulation, adjustable in 1 °C increments, and real-time setpoint/actual temperature readout
• Double-insulated housing and grounded chassis compliant with IEC 61010-1 for laboratory electrical safety; certified by TÜV and CE for Class II equipment
• No exposed metal fasteners, no internal stainless-steel components—designed to eliminate contamination sources in cleanroom and Class 1000 environments

Sample Compatibility & Compliance

The HPX-200 is validated for use with PFA, quartz, and borosilicate glass vessels—including Savillex® DST-100 digestion tubes, SCP Science PFA vials, and Milestone ETHOS UP microwave digestion inserts. Its inert surface supports open-vessel acid digestions, low-temperature evaporation of digests prior to ICP-MS analysis, and controlled drying of filter papers or precipitates without carbonization artifacts. The unit meets GLP documentation requirements through traceable temperature calibration records and is compatible with FDA 21 CFR Part 11–compliant data logging systems when integrated with external USB or RS-232 interfaces (optional accessory). It conforms to ISO/IEC 17025 accreditation criteria for method validation in accredited testing laboratories performing trace elemental analysis.

Software & Data Management

While the HPX-200 operates as a standalone analog/digital hybrid instrument, it supports external data acquisition via optional analog output (0–10 V DC) or digital serial interface (RS-232). When paired with Savillex-certified LabVIEW drivers or third-party SCADA platforms (e.g., Ignition, DeltaV), users can log temperature profiles, generate audit trails, and synchronize heating cycles with LIMS workflows. All firmware updates are delivered via secure HTTPS portal; no cloud connectivity is embedded—ensuring air-gapped operation where required by IT security policies.

Applications

• Open-vessel acid digestion of geological, biological, and polymer matrices using HNO₃/HF/HClO₄ mixtures
• Low-temperature concentration of digested samples prior to HR-ICP-MS or ICP-OES analysis
• Pre-concentration of seawater, groundwater, and atmospheric particulate extracts for ultra-trace metal quantification
• Controlled drying of ion-exchange resins, activated carbon filters, and SPE cartridges without thermal degradation
• Heating platform for automated sample introduction systems requiring stable, non-magnetic, chemically inert support surfaces

FAQ

Is the HPX-200 suitable for hydrofluoric acid (HF) digestion procedures?

Yes—the PFA coating provides continuous protection against HF concentrations up to 49% w/w at temperatures ≤200 °C; however, prolonged exposure above 220 °C with HF requires validation per your SOP.
Can the HPX-200 be used inside a laminar flow hood or cleanroom?

Yes—its zero-metal construction, absence of particulate-shedding surfaces, and static-dissipative PFA layer meet ISO 14644-1 Class 5 requirements when operated with filtered air circulation.
Does the unit include NIST-traceable calibration documentation?

A factory calibration certificate (including temperature uniformity mapping at three setpoints) is supplied; NIST-traceable recalibration services are available through Savillex Authorized Service Centers.
What is the expected service life of the PFA coating under routine use?

Under standard geochemical digestion protocols (≤200 °C, intermittent HF exposure), the PFA layer maintains integrity for ≥5 years; visual inspection and periodic water-break tests are recommended quarterly.
Is the HPX-200 compatible with robotic liquid handlers or auto-samplers?

Yes—the flat, rigid, non-magnetic surface supports integration with XYZ gantry systems and programmable stage controllers; mounting holes align with ISO 2000 standard bench interfaces.