Milestone Microwave Digestion Vessels 44-Position Set for Graphite Block Digesters
| Brand | Binzhenghong (Nanjing) |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | OEM/ODM Producer |
| Country of Origin | China |
| Model | ZH-44 |
| Pricing | Available Upon Request |
| Vessel Configuration | TFM Body + PFA Cap + Internal TFM Insert |
| Compatibility | Fully Interchangeable with Original Milestone UltraWAVE and ETHOS UP Systems |
Overview
The Binzhenghong ZH-44 Microwave Digestion Vessel Set is a precision-engineered 44-position consumable system designed for high-throughput, closed-vessel microwave-assisted acid digestion in compliance with ISO 11885, EPA Method 3052, and ASTM D5683. Engineered to operate within graphite block-based microwave digestion platforms—including but not limited to Milestone UltraWAVE, ETHOS UP, and compatible third-party systems—the ZH-44 set delivers consistent thermal transfer, pressure containment up to 120 bar, and temperature stability ±1.5 °C across all positions. Each vessel comprises three independently replaceable components: a high-purity TFM (perfluoroalkoxy alkane) body, a chemically inert PFA (perfluoroalkoxy) cap with integrated sealing geometry, and a secondary TFM insert that minimizes sample contact with metallic or polymer interfaces—ensuring trace-metal integrity during digestion of environmental soils, biological tissues, polymers, and geological matrices.
Key Features
- Full dimensional and functional compatibility with Milestone UltraWAVE and ETHOS UP 44-position rotor assemblies—validated via mechanical fit, torque specification alignment, and pressure seal interface testing.
- TFM vessel bodies manufactured to ISO 9001-certified cleanroom standards, with ≤5 ppb background levels for As, Cd, Cr, Cu, Ni, Pb, and Zn as verified by ICP-MS post-leaching analysis.
- PFA caps feature dual O-ring grooves and tapered sealing surfaces engineered for repeatable 100+ cycle performance without gasket degradation or cross-threading.
- Modular design enables selective replacement of individual components (body, cap, or insert), reducing long-term operational cost versus proprietary monolithic vessels.
- Autoclavable up to 250 °C; resistant to concentrated HNO₃, HF (≤5%), HCl, and H₂O₂ under microwave conditions—validated per ASTM D5727 accelerated aging protocols.
Sample Compatibility & Compliance
The ZH-44 system supports digestion of up to 0.5 g solid samples or 5 mL liquid matrices per vessel. It is routinely deployed in accredited environmental laboratories performing heavy metal analysis per US EPA SW-846 Methods 3050B, 3051A, and 3052; clinical labs adhering to CLIA and CAP requirements for tissue mineral profiling; and industrial QA/QC labs following ISO/IEC 17025 for catalyst residue testing. All materials comply with EU REACH Annex XIV restrictions and are documented with full RoHS 2.0 and Proposition 65 declarations. Traceability includes lot-specific CoA (Certificate of Analysis) with elemental blank data, dimensional inspection reports, and pressure-cycle validation summaries.
Software & Data Management
While the ZH-44 is a hardware-only consumable set, its design integrates seamlessly into LIMS and ELN environments through standardized labeling (2D DataMatrix codes etched on each TFM body). These codes link to digital batch records containing manufacturing date, raw material lot IDs, QC test results, and sterilization history—enabling full audit trail compliance under FDA 21 CFR Part 11 and GLP/GMP Annex 11 requirements. Binzhenghong provides optional CSV-based inventory synchronization APIs for integration with LabWare LIMS, Thermo Fisher SampleManager, and Agilent OpenLab ECM.
Applications
- Multi-element analysis of soil and sediment by ICP-OES/ICP-MS following EPA 6020B.
- Routine digestion of pharmaceutical excipients and active ingredients prior to residual metal quantification per USP <232> and <233>.
- High-sensitivity determination of rare earth elements (REEs) in monazite and bastnäsite ores using collision-cell ICP-MS.
- Digestion of carbon-fiber composites and printed circuit boards for halogen and heavy metal screening per IEC 62321-5.
- Preparation of certified reference materials (CRMs) including NIST SRM 2711a and GBW 07401 for method validation studies.
FAQ
Are ZH-44 vessels certified for use in accredited laboratories?
Yes—each production lot undergoes independent verification by CNAS-accredited third-party labs for dimensional conformity, pressure retention (120 bar @ 220 °C), and elemental blank performance. Full documentation is provided with shipment.
Can ZH-44 vessels be used with non-Milestone graphite digestion systems?
Compatibility has been confirmed with Anton Paar Multiwave PRO, CEM Mars 6, and PerkinElmer Titan MPS platforms when configured with standard 44-position rotors and TFM/PFA interface specifications. Validation data available upon request.
What is the recommended replacement interval for caps and inserts?
Under routine operation (≤5 digestions/week, HNO₃/HF mixtures), PFA caps maintain sealing integrity for ≥150 cycles; TFM inserts are rated for ≥200 cycles. Binzhenghong provides wear-monitoring guidelines based on visual inspection and torque decay tracking.
Do you supply traceable calibration artifacts for vessel volume verification?
Yes—certified volumetric inserts (±0.5% tolerance at 20 °C) calibrated per ISO/IEC 17025 are available as optional accessories with NIST-traceable certificates.
