GBPI ZF3600 Total Evaporable Residue Analyzer

Overview

The GBPI ZF3600 Total Evaporable Residue Analyzer is an integrated, fully automated system engineered for precise determination of non-volatile residue (NVR), total migration, and related parameters in regulatory-compliant testing environments. It operates on the gravimetric principle: a defined volume of test solution is dispensed into pre-tared evaporating dishes; solvent is removed via controlled water-bath evaporation below its boiling point, followed by drying in a temperature-stabilized chamber at 105 °C; residual mass is determined using high-resolution analytical balances until constant weight is achieved. This methodology aligns with pharmacopoeial and food-contact material standards requiring rigorous control over thermal history, environmental interference, and measurement repeatability. Designed specifically for laboratories performing routine quality control and regulatory compliance testing—especially in pharmaceutical packaging, food contact materials, tobacco packaging, and environmental water analysis—the ZF3600 eliminates manual intervention across all critical stages: liquid dispensing, evaporation, drying, cooling, weighing, and data logging.

Key Features

• Integrated dual-chamber architecture: independent water bath and drying chamber with real-time temperature monitoring and electromagnetic PID temperature control (±0.5 °C accuracy).
• Automated fluid handling: pneumatic valve-controlled dosing system with ≤0.1 mL residual volume per cycle; liquid level sensors enable autonomous water replenishment and drainage.
• Triple high-precision balance configuration: three imported 0.01 mg resolution analytical balances housed in thermally isolated, water-jacketed enclosures—mechanically decoupled during heating/drying phases to ensure metrological stability.
• High-throughput capability: 36 parallel test positions with independent dish management; supports aqueous, organic (e.g., hexane, ethanol, chloroform, acetic acid), and solid/powder samples.
• Efficient solvent recovery: built-in recirculating chiller with large-volume coolant reservoir enables chamber cooldown to ambient temperature within 30 minutes; integrated solvent recovery bottle achieves >90% collection efficiency.
• Human-centered interface: ergonomic 1.2 m height, transparent observation window, real-time graphical display of weight, temperature, and humidity trends; one-touch start with automatic endpoint detection based on user-defined constant-weight criteria.

Sample Compatibility & Compliance

The ZF3600 accommodates diverse sample matrices including purified water, pharmaceutical packaging extracts (plastics, laminates, adhesives), food-contact polymers, cigarette tipping paper, chemical reagents, and environmental water samples. Its operational protocol satisfies key regulatory requirements across global jurisdictions:

• Pharmaceutical water: Chinese Pharmacopoeia (ChP) 2020 Vol. II “Purified Water”, European Pharmacopoeia (EP) 9.0 WATER, PURIFIED.
• Pharmaceutical packaging: National Standard for Pharmaceutical Packaging Materials (China), extractables testing for non-volatile residue.
• Food contact materials: GB 31604.8–2016 (China), EN 1186-3:2002 Method A (EU), Korea Ministry of Health and Welfare Chapter IV Section 2-8.
• Tobacco and chemicals: GB/T 9740–2008.
• Water quality: GB 8538–2016, DZ/T 0064.9–2021, GB/T 14415–2007, GB/T 5750.4–2006.
• Solid dosage forms: ChP 2020 Vol. IV “Extractables” and “Loss on Drying”, USP–NF Water Determination.

All hardware and software components are designed to support GLP/GMP-aligned workflows, including audit trail generation, role-based access control, and electronic signature functionality compliant with FDA 21 CFR Part 11.

Software & Data Management

The ZF3600 runs a purpose-built Windows 10 Pro-based application developed in accordance with Annex 11 (Computerised Systems) and GMP Annex 11 principles. The GUI features modular icons, multilingual support (English/Chinese toggle), and intuitive parameter configuration for method development. Each test run generates a timestamped, tamper-evident audit log containing operator ID, instrument state, environmental conditions (T/RH), raw balance readings, and intermediate weights. Data export options include CSV, PDF, and XML formats; reports can be digitally signed and routed through configurable approval workflows. The system supports network connectivity for integration into laboratory information management systems (LIMS) and centralized digital lab platforms.

Applications

• Quantification of total non-volatile residue from pharmaceutical packaging extracts per ISO 10993-12 and regulatory leachables protocols.
• Migration testing of food contact plastics and coatings under simulated use conditions (e.g., aqueous, acidic, alcoholic, fatty food simulants).
• Determination of dissolved solids in drinking water, mineral water, and wastewater effluents.
• Loss on drying (LOD) and moisture content analysis for APIs, excipients, and herbal powders per ChP/USP monographs.
• Residue evaluation in cleaning validation studies for multi-product manufacturing equipment.
• Quality assurance of solvent-based inks, adhesives, and coating formulations used in packaging lamination processes.

FAQ

What standards does the ZF3600 comply with for pharmaceutical packaging testing?
It conforms to the Chinese National Standard for Pharmaceutical Packaging Materials regarding non-volatile residue testing, as well as ChP 2020 and EP 9.0 requirements for purified water and extractables assessment.
Can the instrument handle organic solvents such as chloroform or ethanol?
Yes—its sealed, ventilated chamber design, solvent recovery system, and chemically resistant internal surfaces support safe, repeatable evaporation of halogenated, polar, and non-polar solvents per EN 1186-3 and GB 31604.8.
Is the balance system calibrated automatically during operation?
No—external calibration using certified weights is required prior to use; however, the system logs all calibration events and enforces scheduled recalibration intervals via configurable alerts.
How is data integrity ensured for regulatory submissions?
Through full 21 CFR Part 11 compliance: electronic signatures, immutable audit trails, role-based permissions, and secure data encryption during storage and export.
Does the ZF3600 support remote diagnostics and software updates?
Yes—when connected to a local network, authorized users may access the instrument’s interface remotely via the GBPI Laboratory IoT Platform for real-time monitoring, troubleshooting, and firmware updates.