HORIBA F-72 Benchtop pH and Ion Analyzer

Overview

The HORIBA F-72 is a high-precision, single-channel benchtop analyzer engineered for rigorous laboratory-based water quality assessment. It employs potentiometric measurement principles—glass electrode methodology for pH and redox potential (ORP), and ion-selective electrode (ISE) technology for quantitative ion concentration analysis (e.g., Na⁺, K⁺, F⁻, Cl⁻, NO₃⁻, NH₄⁺). Designed to meet the metrological demands of regulated environments, the F-72 delivers traceable, reproducible results aligned with international pharmacopeial standards including USP , European Pharmacopoeia 2.2.38, Japanese Pharmacopoeia XVI, and Chinese Pharmacopoeia (CP). Its core architecture integrates a high-stability analog front-end, temperature-compensated signal processing, and a calibrated reference junction system to minimize liquid junction potential drift—critical for long-term stability in aqueous matrix analysis.

Key Features

• Capacitive touchscreen interface (7-inch diagonal) with intuitive, context-sensitive navigation—enabling real-time access to calibration status, electrode diagnostics, and error-guided troubleshooting.
• Integrated electrode health monitoring and automated diagnostic prompts compliant with JIS Z 8401 and ISO/IEC 17025 verification workflows.
• GLP/GMP-ready operation: timestamped data logging with user ID authentication, audit trail support, and configurable auto-hold and endpoint detection for standardized titration-like protocols.
• Modular electrode compatibility: supports interchangeable glass pH electrodes, combination ORP electrodes, and solid-state or liquid-membrane ISEs with standardized BNC and mini-DIN connectors.
• Multi-language UI (English, Japanese, Korean, Simplified Chinese) with on-screen guidance for calibration validation, sensor conditioning, and compliance-driven periodic verification (e.g., USP conductivity/pH correlation checks).
• Robust mechanical design: compact footprint (220 × 180 × 95 mm), lightweight aluminum chassis (~700 g), and IP20-rated enclosure suitable for Class 10,000 cleanroom-adjacent lab benches.

Sample Compatibility & Compliance

The F-72 is validated for use across purified water (PW), water for injection (WFI), pharmaceutical process streams, environmental surface water, wastewater effluents, and industrial cooling loops. Its measurement algorithms incorporate automatic temperature compensation (ATC) per NIST SRM 186, and all reported values are traceable to SI units via certified reference materials (CRM). The instrument conforms to regulatory requirements for data integrity under FDA 21 CFR Part 11 (when paired with compliant software and electronic signature protocols), EU Annex 11, and ISO 9001:2015 quality management systems. Built-in check routines verify electrode slope, asymmetry potential, and response time against pharmacopeial acceptance criteria—ensuring readiness for routine GMP audits.

Software & Data Management

Data acquisition and export are facilitated via USB 2.0 interface (USB-B port), supporting direct connection to Windows/Linux workstations running HORIBA’s optional LabSolutions QA software or generic spreadsheet applications. Each stored record includes parameter value, timestamp (YYYY-MM-DD HH:MM:SS), temperature, electrode ID (if encoded), operator ID, calibration history ID, and measurement mode flag. Up to 2000 full-resolution entries are retained in non-volatile memory with cyclic overwrite protection. Export formats include CSV (UTF-8 encoded) and XML (for LIMS integration), both containing embedded metadata required for ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available). Firmware updates are performed offline via USB flash drive, preserving configuration integrity during version migration.

Applications

• Pharmaceutical QC labs: Routine pH and ion testing of purified water per USP , buffer preparation verification, and cleaning validation residue analysis (e.g., Na⁺ from sodium hydroxide rinses).
• Environmental monitoring: Field-deployable lab backup for surface water alkalinity profiling, acid mine drainage screening (Fe²⁺/Fe³⁺ via ORP), and nitrate contamination mapping in groundwater.
• Academic research: Teaching laboratories requiring stable, low-drift pH platforms for enzyme kinetics, dissolution testing, and electrochemical sensor development.
• Food & beverage R&D: Shelf-life studies involving pH drift in dairy emulsions, brine conductivity tracking in pickling solutions, and potassium monitoring in sports drinks.
• Chemical manufacturing: In-process control of neutralization reactions, catalyst bath monitoring, and waste stream characterization prior to discharge permitting.

FAQ

Does the F-72 support GLP-compliant data export?
Yes—when used with HORIBA LabSolutions QA software and configured with user authentication, electronic signatures, and audit trail activation, it satisfies core GLP data integrity requirements.
Can the F-72 perform simultaneous multi-ion analysis?
No—the F-72 is a single-channel instrument; sequential ion measurements require manual electrode swapping and recalibration between analytes.
Is temperature compensation automatic during pH and ion measurements?
Yes—integrated Pt1000 RTD sensor enables real-time ATC per DIN EN ISO 17442, with selectable Nernstian or custom compensation curves.
What electrode types are certified for use with the F-72?
HORIBA’s own series of refillable glass-body pH electrodes (e.g., 9615S-10D), double-junction ORP electrodes (e.g., 9678S-10D), and monovalent/multivalent ISEs (e.g., 9658BN for fluoride) are fully supported and factory-characterized.
How is calibration verification documented?
Each calibration event generates a digital log entry with slope (%), offset (mV), buffer IDs, date/time, and operator code—exportable as PDF or CSV for regulatory submission.