Binzhenghong NJ-PFA-60ml Graduated PFA Digestion Vessels for Graphite Block Digesters (48-Position Compatible)
| Brand | Binzhenghong |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | OEM/ODM Producer |
| Country of Origin | China |
| Model | NJ-PFA-60ml |
| Pricing | Upon Request |
Overview
The Binzhenghong NJ-PFA-60ml Graduated PFA Digestion Vessels are high-purity, chemically inert sample containers engineered specifically for use with graphite block digesters in elemental analysis workflows. Constructed from premium-grade perfluoroalkoxy alkane (PFA), these vessels exhibit exceptional resistance to aggressive acid mixtures—including hydrochloric acid (HCl), nitric acid (HNO₃), hydrofluoric acid (HF), and perchloric acid (HClO₄)—commonly employed in open-vessel hot-block digestion protocols. Unlike standard polypropylene or borosilicate glassware, PFA offers superior thermal stability (continuous use up to 260 °C), negligible metal leaching, and near-zero background interference—critical for trace-level heavy metal quantification by ICP-MS, ICP-OES, AAS, and HG-AFS. Designed for compatibility with 48-position graphite heating blocks, each vessel features laser-etched volumetric graduations (10–60 mL) calibrated at 20 °C, enabling precise reagent addition and final dilution without secondary transfer steps.
Key Features
- Material: ASTM D4895-compliant PFA resin—certified low-metal, low-extractable, and non-wetting for reproducible recoveries of Cd, Pb, Cr, As, Hg, and other regulated elements
- Dimensional precision: Outer diameter 31 mm × height 100 mm; optimized fit for standardized 48-hole graphite blocks with minimal thermal bridging
- Graduation accuracy: ±0.5 mL across full scale (10–60 mL), verified per ISO 4787:2022 for Class A volumetric compliance
- Chemical resilience: Resists degradation under reflux conditions using HF/HNO₃/HClO₄ mixtures per EPA Method 3050B and GB/T 22105.2–2008
- Thermal performance: Withstands rapid ramping (up to 10 °C/min) and sustained heating at 220–260 °C without deformation or outgassing
- Surface finish: Electro-polished inner wall minimizes analyte adsorption and facilitates complete acid recovery during赶酸 (acid evaporation)
Sample Compatibility & Compliance
These PFA digestion vessels are validated for solid and semi-solid matrices requiring total digestion prior to instrumental analysis. They meet the physical and chemical requirements specified in major regulatory frameworks including EPA SW-846 Methods 3010A, 3050B, and 3060A for soil, sediment, and sludge; GB/T 17138–1997 and GB/T 22105.1–2008 for agricultural and environmental soils; and ISO 11466 for contaminated land assessment. Their inertness ensures compliance with GLP and GMP laboratory practices where blank integrity and method traceability are mandatory. Each batch undergoes rigorous QC screening—including ICP-MS screening for Al, Fe, Ni, Cr, and Zn contamination—and is supplied with a Certificate of Analysis (CoA) listing measured background levels (<0.5 pg/g for key transition metals).
Software & Data Management
While the vessels themselves are passive consumables, they integrate seamlessly into digital lab workflows governed by LIMS and electronic lab notebook (ELN) systems. When used with programmable graphite digesters featuring PID-controlled 16-segment temperature ramps (e.g., ZH-series), vessel-specific heating profiles can be archived with timestamps, setpoints, and real-time temperature logs—supporting audit readiness under FDA 21 CFR Part 11 and ISO/IEC 17025:2017 requirements. Batch-lot traceability is maintained via serialized packaging labels compliant with GS1 standards, enabling full chain-of-custody documentation from receipt through final analysis.
Applications
- Environmental testing: Total digestion of soil, sludge, fly ash, and airborne particulate matter for multi-element profiling
- Food safety: Quantification of toxic metals in dairy powders, seafood, leafy vegetables, and infant formula per GB 5009.11–2014 and EU Commission Regulation (EC) No 1881/2006
- Geochemical research: Acid leaching of geological reference materials (e.g., GBW-07430/GSS-16) with certified recoveries ≥95%
- Regulatory compliance: Sample preparation for RoHS, WEEE, and REACH screening of polymers, coatings, and electronic components (SJ/T 1365–2006)
- Clinical & forensic toxicology: Digestion of hair, nail, and tissue samples for longitudinal biomonitoring studies
FAQ
Are these vessels compatible with microwave-assisted digestion systems?
They are designed for open-vessel graphite block digestion only. For microwave applications, we recommend our separate line of PFA-lined microwave digestion vessels (model NJ-MW-PFA-55mL) with reinforced pressure-rated caps.
Can I reuse these PFA digestion vessels?
Yes—provided they are thoroughly cleaned using hot 10% HNO₃ followed by ultrapure water rinses and dried in a Class 100 clean bench. Reuse is permitted up to five cycles for routine QA/QC samples; however, single-use is recommended for ultra-trace analysis or when analyzing highly contaminated matrices.
Do you offer custom graduation markings or volume capacities?
Yes. Custom etching (e.g., dual-scale mL/mL, or inclusion of lot-specific QR codes) and alternative volumes (30 mL, 100 mL) are available under OEM agreements with minimum order quantities.
What validation data is provided with each shipment?
Each carton includes a CoA listing batch-specific ICP-MS blanks, dimensional inspection reports, and compliance statements against ISO 1042, ASTM D4895, and GB/T 21300–2007 (PFA material specification).
