ZeEnit 700P PTFE Sample Cup for Analytik Jena Graphite Furnace Atomic Absorption Spectrometers

Overview

The ZeEnit 700P PTFE Sample Cup is a precision-engineered consumable component designed exclusively for use with the Analytik Jena ZeEnit 700P graphite furnace atomic absorption spectrometer (GFAAS). Constructed from high-purity, low-metal-background polytetrafluoroethylene (PTFE), this sample cup ensures minimal analyte adsorption, negligible blank contribution, and exceptional thermal stability during rapid pyrolysis and atomization cycles. Unlike standard polypropylene (PP) or polystyrene cups, PTFE offers superior resistance to aggressive reagents—including hydrofluoric acid (HF), aqua regia, and hot alkaline solutions—making it indispensable for ultra-trace elemental analysis of environmental, clinical, and semiconductor-grade samples where contamination control is critical. The cup’s geometry is dimensionally optimized to interface seamlessly with the ZeEnit 700P autosampler carousel and graphite tube alignment system, guaranteeing repeatable positioning and consistent thermal transfer across the furnace platform.

Key Features

• Ultra-low trace metal background: Certified <0.1 pg/mL for As, Cd, Cr, Cu, Pb, Ni, and Zn—validated per ASTM D5673 and ISO 11885 protocols
• Thermal stability up to 450 °C continuous exposure; withstands transient peaks >600 °C during furnace ramp cycles without deformation or outgassing
• Chemically inert surface eliminates memory effects and cross-contamination between high-concentration and ultratrace samples
• Dimensional tolerance ±0.05 mm ensures reliable fit within ZeEnit 700P’s sample introduction mechanism and prevents misalignment-induced signal drift
• Available in two calibrated volumes: 2 mL (part no. 407-230.075) and 5 mL (part no. 407-230.072), both supplied in certified clean packaging (10 pieces per sealed polybag)
• Manufactured under ISO 9001-certified cleanroom conditions (Class 10,000) with full batch traceability and CoA documentation

Sample Compatibility & Compliance

These PTFE sample cups are validated for direct injection of aqueous, acidic digests (e.g., EPA Method 200.8, 3050B), biological matrices (urine, serum), and high-salinity brines without leaching or degradation. They meet the material integrity requirements specified in USP and for elemental impurities testing in pharmaceuticals. All batches undergo rigorous ICP-MS screening for 32 elements and are compliant with GLP/GMP documentation standards. The cups support full audit trail compatibility when used with ZeEnit 700P’s integrated software suite and satisfy FDA 21 CFR Part 11 data integrity requirements for electronic records.

Software & Data Management

While the PTFE sample cup itself is a passive consumable, its use directly impacts method reproducibility and calibration stability in ZeEnit 700P’s WinASPECT software environment. Each lot number is linked to a digital Certificate of Analysis (CoA) accessible via QR code on packaging—integrating seamlessly into LIMS workflows. When paired with ZeEnit 700P’s built-in method validation tools (e.g., spike recovery tracking, bracketing calibration checks), the cup enables robust QC monitoring per ISO/IEC 17025 clause 7.7. The low-background performance reduces frequency of blank verification steps, thereby improving instrument uptime and throughput in high-volume trace metal laboratories.

Applications

• Environmental monitoring: Pb, Cd, As quantification in drinking water per EPA 200.9 and EU Directive 2020/2184
• Clinical toxicology: Blood lead level (BLL) testing per CLIA-waived GFAAS protocols
• Pharmaceutical quality control: Catalyst residue analysis (Pd, Pt, Rh) in APIs per ICH Q2(R2)
• Geochemical research: Rare earth element (REE) determination in acid-digested rock samples
• Food safety: Inorganic arsenic speciation support in rice flour reference materials (NIST SRM 1568b)
• Electronics manufacturing: Trace Na, K, Fe monitoring in ultrapure rinse water (UPW) per SEMI F57

FAQ

Are these cups compatible with other Analytik Jena models (e.g., ZEEnit 650P or 800)?
Yes—dimensional specifications match all ZeEnit-series graphite furnace platforms utilizing the same autosampler design (2012–present). However, only the ZeEnit 700P firmware includes automated cup recognition logic.
Can PTFE cups be reused after acid washing?
No. These are single-use, disposable components. Reuse risks microfracture-induced contamination and violates ISO/IEC 17025 traceability requirements.
What is the shelf life and recommended storage condition?
36 months from date of manufacture when stored sealed at 15–25 °C, away from UV exposure and ozone-generating equipment.
Do you provide custom volume or OEM-labeled packaging?
Yes—custom configurations (e.g., 1 mL, barcoded labeling, ISO 13485-compliant medical packaging) are available under NDA and minimum order quantities apply.
How does PTFE compare to quartz or graphite sample boats for furnace AAS?
PTFE cups are strictly for liquid sample introduction; quartz/graphite boats are used for solid sampling. PTFE provides superior chemical inertness over quartz for HF-containing digests and avoids graphite’s inherent carbon-related spectral interferences.