HOGON MT-V6 Single-Channel Fully Automatic Potentiometric Titrator

Overview

The HOGON MT-V6 Single-Channel Fully Automatic Potentiometric Titrator is an engineered solution for high-precision, trace-level acid-base and redox titrations in regulated and research-intensive laboratory environments. Operating on the fundamental principle of potentiometric endpoint detection—measuring the potential difference between a reference electrode and an indicator electrode as a function of titrant volume—the MT-V6 delivers reproducible, GLP-compliant quantitative analysis without manual intervention. Its architecture integrates a micro-stepper-driven burette system, real-time mV/pH signal acquisition at 10 Hz sampling rate, and closed-loop feedback control to maintain volumetric accuracy across dynamic titration regimes. Designed for compliance with ISO 8655-3 (burette performance), ASTM E2087 (potentiometric titration practice), and USP (titrimetric analysis), the instrument supports method validation workflows essential in pharmaceutical QC, chemical manufacturing, and environmental testing laboratories.

Key Features

• Single-channel fully automated titration platform with motorized burette drive, programmable dispensing speed (0.1–30 mL/min), and adaptive endpoint recognition algorithms
• High-fidelity electrochemical measurement circuitry: ±0.1 mV meter accuracy, 0.1 mV resolution, and ±0.2 mV absolute potential stability over 8-hour continuous operation
• Modular burette configuration: Standard 20 mL glass burette (1 µL minimum dispensing increment); optional 10 mL burette (0.5 µL resolution) for ultra-low-volume applications
• Integrated pH/mV measurement range: 0.000–14.000 pH (0.001 resolution) and ±2000 mV (0.1 mV resolution), calibrated per IUPAC primary buffer standards
• Sealed titration enclosure with vapor-resistant tubing, drip tray, and reagent-level monitoring to prevent cross-contamination and ensure operator safety
• Full-color 7-inch capacitive touchscreen interface with intuitive icon-based navigation, multi-language support (EN/DE/FR/ES/CN), and audit-trail-enabled user authentication

Sample Compatibility & Compliance

The MT-V6 accommodates aqueous and mildly polar non-aqueous matrices—including acetic acid, methanol/water blends, and dimethylformamide—within temperature ranges of 5–40 °C and relative humidity up to 80% RH (non-condensing). It accepts standard 100–250 mL titration vessels and supports interchangeable electrodes (e.g., pH-105 composite electrode, Pt redox electrode, Ag/AgCl reference) via DIN 19262–compatible sockets. All data acquisition, storage, and export functions comply with FDA 21 CFR Part 11 requirements for electronic records and signatures, including time-stamped audit trails, user role-based access control, and immutable raw data archiving. The system meets ISO/IEC 17025:2017 clause 7.7 (measurement traceability) when used with NIST-traceable pH buffers and certified volumetric standards.

Software & Data Management

Embedded firmware v3.2 provides preloaded titration methods aligned with AOAC, EP, and JP monographs (e.g., acid value, saponification number, chloride by Mohr method). Users may create, validate, and version-control custom methods using stepwise parameter definition (initial delay, addition volume, waiting time, equivalence point algorithm selection). Raw sensor data (mV, pH, volume, time) is stored in encrypted SQLite format with SHA-256 hashing. Export options include PDF reports with embedded chromatogram-style titration curves, CSV for statistical processing, and direct Ethernet/Wi-Fi transfer to LIMS or ELN systems. USB host port enables firmware updates and offline method backup without network dependency.

Applications

• Pharmaceutical QC: Quantification of active pharmaceutical ingredients (APIs) via acid-base titration (e.g., amine content in beta-lactams), residual catalyst analysis, and excipient purity verification
• Chemical manufacturing: Titration of carboxylic acids in polymer precursors, free fatty acid determination in biodiesel, and alkalinity profiling of industrial wastewater streams
• Foods & beverages: Total acidity (TA) in fruit juices, lactic acid in dairy products, and sulfite quantification in wine using iodometric back-titration
• Environmental testing: Carbonate hardness (CaCO₃) in surface water, fluoride by ion-selective electrode titration, and cyanide determination via silver nitrate titration
• Academic research: Kinetic studies of proton-transfer reactions, pKa determination of weak electrolytes, and validation of novel indicator electrodes

FAQ

What types of titration modes does the MT-V6 support?
It supports potentiometric acid-base, redox, precipitation (e.g., argentometry), and complexometric (e.g., EDTA) titrations via configurable endpoint detection algorithms.
Is the system compatible with third-party electrodes?
Yes—any electrode with standard BNC or DIN 19262 connectors and output impedance below 10⁹ Ω can be integrated after calibration verification.
How is data integrity ensured during long-term unattended operation?
All measurements are timestamped, digitally signed, and written to redundant internal flash memory; power-loss recovery resumes from last stable state without data truncation.
Can the MT-V6 be validated for GMP environments?
Yes—the instrument includes IQ/OQ documentation templates, built-in performance verification routines (e.g., burette linearity test, electrode response check), and full 21 CFR Part 11 audit trail export capability.
What maintenance is required for the burette system?
Monthly cleaning with ethanol/water (1:1), quarterly verification of piston seal integrity, and annual recalibration using certified volumetric standards per ISO 8655-6.