PTFE Syringe by Binzhenghong – High-Purity, Chemically Inert Laboratory Syringe

Overview

The Binzhenghong PTFE Syringe is a precision-engineered laboratory fluid handling tool fabricated entirely from virgin polytetrafluoroethylene (PTFE), conforming to ASTM D4894 and ISO 1043-1 material specifications. Unlike conventional glass or stainless-steel syringes, this device leverages the intrinsic chemical inertness, ultra-low extractables, and thermal stability of PTFE to enable safe, contamination-free transfer of aggressive solvents, high-purity standards, corrosive reagents, and ultra-trace analytes in analytical, pharmaceutical, and semiconductor R&D environments. Its operation follows standard positive-displacement mechanics: axial translation of the PTFE plunger within a seamless, honed PTFE barrel creates controlled suction or expulsion through a precision-machined front nozzle—eliminating metal contact, elastomer leaching, or surface adsorption artifacts. Designed for use under ambient to elevated temperatures (–200 °C to +260 °C), it supports applications where trace-metal interference, solvent-induced swelling, or catalytic surface reactions must be rigorously excluded.

Key Features

• Fully monolithic construction from USP Class VI-certified virgin PTFE—no adhesives, coatings, or metallic components
• Ultra-low elemental background: ≤0.1 ng/g for Na, K, Ca, Fe, Ni, Cr, Zn, Cu, and Pb (ICP-MS verified per ASTM D5673)
• Chemical resistance validated against concentrated HNO₃, HF, aqua regia, THF, DMF, chloroform, and NMP at 25 °C for ≥72 h (no weight loss or dimensional change)
• Smooth bore geometry with <0.2 µm Ra surface finish ensures laminar flow, minimal dead volume, and high volumetric repeatability (CV < 0.8% at full scale)
• Integrated PTFE nozzle with 1.5 mm tip length and 0.8 mm internal diameter—optimized for capillary access into sealed reactors, glovebox ports, and microfluidic interfaces
• Available in standardized capacities (25 mL, 100 mL, 250 mL, 500 mL, 1000 mL) with custom barrel length, nozzle configuration, and graduation marking upon request

Sample Compatibility & Compliance

This syringe is explicitly qualified for handling Grade A ultrapure water, ICP-MS calibration standards, nanoparticle suspensions, organometallic catalysts, and battery electrolyte formulations. It complies with ISO/IEC 17025 requirements for measurement traceability when used with certified volumetric standards. The absence of leachable ions satisfies USP conductivity limits and EP 2.2.38 trace metal testing protocols. For GMP-regulated workflows, documentation packages include raw material CoA (Certificate of Analysis), batch-specific extractables test reports, and dimensional inspection records—all archived for ≥10 years per GLP Annex 11 guidelines.

Software & Data Management

While the PTFE syringe operates manually, its integration into automated systems is supported via third-party linear actuators and position encoders compatible with LabVIEW™, Python-based control frameworks (e.g., PySerial + OpenCV), and PLC-driven liquid handling platforms. When paired with gravimetric dispensing validation (per USP ), data logs—including plunger displacement, ambient temperature, and mass delta—can be timestamped and stored with 21 CFR Part 11-compliant audit trails using compliant LIMS or ELN solutions. Binzhenghong provides mechanical interface drawings (STEP/IGES) and torque/displacement calibration curves for system integrators.

Applications

• Calibration of ICP-OES and ICP-MS instruments using trace-element reference materials
• Inert transfer of air-sensitive Grignard or lithium aluminum hydride solutions under nitrogen or argon
• Sampling and injection of high-viscosity polymer melts in rheology prep stations
• Delivery of etchants and strippers in photomask cleaning and wafer-level packaging
• Controlled dosing of electrolyte additives during Li-ion battery cell formulation
• Preparation of certified reference materials (CRMs) requiring sub-ppt contamination control

FAQ

Is this syringe autoclavable?
Yes—fully sterilizable at 121 °C, 15 psi for 20 minutes without deformation or degradation; repeated cycles do not compromise dimensional stability.
Can it be used with hydrofluoric acid (HF)?
Yes—PTFE exhibits no measurable corrosion or weight loss in 49% aqueous HF at room temperature over 96 hours (tested per ASTM D543).
Does it meet USP Class VI requirements?
Yes—certified per USP cytotoxicity, systemic injection, and implantation assays; full test report available upon order.
What is the maximum recommended operating pressure?
Rated for continuous use up to 0.3 MPa (43.5 psi); transient peaks to 0.5 MPa are permissible with reduced cycle life.
Are graduation markings laser-etched or printed?
All volume markings are permanent laser-etched directly into the PTFE barrel wall—resistant to solvents, abrasion, and UV exposure.