HORIBA F-72 Benchtop pH and Ion Analyzer

Overview

The HORIBA F-72 is a high-precision benchtop water quality analyzer engineered for rigorous laboratory applications requiring trace-level accuracy in pH, oxidation-reduction potential (ORP), ion concentration, and temperature measurements. It employs potentiometric measurement principles: pH and ORP are determined using glass and noble-metal reference electrodes following the Nernst equation; ion concentration is quantified via selective ion electrodes (e.g., fluoride, nitrate, ammonium), calibrated against standard solutions per ISO 17025-compliant protocols. Designed for regulatory environments—including pharmaceutical QC labs, environmental testing facilities, and academic research centers—the F-72 delivers metrological stability through temperature-compensated analog signal conditioning, low-drift amplifier architecture, and built-in electrode diagnostics. Its single-channel configuration focuses on core electrochemical parameters without compromising analytical integrity, making it ideal for routine calibration verification, raw material qualification, and process water monitoring where multi-parameter redundancy is unnecessary but precision is non-negotiable.

Key Features

• Capacitive touchscreen interface with intuitive navigation—supports real-time parameter display, setup configuration, maintenance logs, and fault diagnostics in a single view.
• Integrated electrode health monitoring and guided calibration workflows compliant with JIS Z 8401, USP , EP 2.2.42, and JP XVIII standards.
• Automated measurement hold and endpoint detection algorithms reduce operator dependency and improve inter-analyst reproducibility.
• Removable glass pH electrode assembly with quick-release mechanism enables rapid cleaning, storage in KCl solution, and field replacement without tooling.
• GLP/GMP-ready data handling: time-stamped records include electrode ID, calibration history, ambient temperature, and user authentication metadata.
• USB host port supports direct connection to USB flash drives for secure, offline data export in CSV format—no proprietary software required for basic retrieval.

Sample Compatibility & Compliance

The F-72 is validated for aqueous matrices across a broad conductivity range (0.001 µS/cm to 199.9 S/m, depending on cell constant) and pH extremes (0.000–14.000). It accommodates standard 12-mm diameter combination electrodes and compatible ion-selective sensors from HORIBA’s certified portfolio. All measurement modes adhere to ASTM D1293 (pH of water), ASTM D3223 (fluoride), ISO 5667-3 (sampling preservation), and pharmacopeial requirements for purified water (USP Purified Water, EP Water for Injection, JP Purified Water). Built-in audit trail functionality satisfies FDA 21 CFR Part 11 criteria when paired with password-protected user accounts and electronic signature logging via optional PC software.

Software & Data Management

Data acquisition and reporting are managed natively via the embedded operating system. Up to 2000 measurement records—including pH, ORP, ion activity, temperature, date/time stamp, electrode serial number, and calibration status—are stored internally with cyclic overwrite protection. Export is performed via USB mass storage mode; no drivers or installers are needed on Windows/macOS/Linux hosts. For regulated environments, optional HORIBA LabSolutions™ software provides advanced features: statistical process control (SPC) charts, automated report generation (PDF/Excel), electronic signature capture, and full 21 CFR Part 11 compliance with role-based access control and immutable audit trails. Firmware updates are delivered via signed binary packages verified by SHA-256 checksums.

Applications

• Pharmaceutical water system validation: continuous monitoring of purified water (PW) and water for injection (WFI) per USP and EU Annex 1 requirements.
• Environmental compliance testing: wastewater effluent pH and heavy metal ion screening (e.g., Pb²⁺, Cd²⁺) using ISEs traceable to NIST SRMs.
• Academic research: kinetic studies of acid-base equilibria, redox reactions, and ion exchange processes under controlled thermal conditions.
• Food & beverage QA: titratable acidity verification, brine concentration control, and shelf-life stability testing of electrolyte-rich formulations.
• Calibration laboratory support: secondary standardization of portable meters and field sensors using F-72 as a reference-grade master instrument.

FAQ

Does the F-72 support automatic temperature compensation (ATC) during pH and ion measurements?
Yes—integrated Pt1000 sensor provides real-time ATC across the full −30.0 to 130.0 °C range, applying NIST-traceable thermistor coefficients to correct for thermal drift in electrode response.
Can the F-72 be used for Good Manufacturing Practice (GMP) environments?
Yes—when configured with user authentication, electronic signatures, and audit trail logging (via LabSolutions™), it meets ALCOA+ data integrity principles and supports GMP audit readiness.
What electrode types are compatible with the F-72 for ion measurement?
HORIBA-certified ion-selective electrodes (ISEs) with BNC connectors and standardized membrane chemistries—including fluoride, chloride, nitrate, ammonium, calcium, and sodium—are fully supported.
Is firmware upgrade capability available in the field?
Yes—updates are distributed as cryptographically signed binaries and installed via USB drive; version history and changelogs are accessible within the system menu.
How is measurement uncertainty quantified for regulatory submissions?
Uncertainty budgets can be constructed using manufacturer-specified repeatability (±0.001 pH, ±0.1 mV, ±0.5% F.S. for ions), temperature probe accuracy (±0.1 °C), and calibration standard uncertainties (e.g., NIST SRM 186c for pH).