Behr R-Series Multi-Sample Soxhlet Extraction System

Overview

The Behr R-Series Multi-Sample Soxhlet Extraction System is a precision-engineered laboratory instrument designed for high-throughput, standardized fat and lipid analysis in compliance with internationally recognized methods including AOAC 991.36, ISO 1444, and DIN EN ISO 14555. Based on the classical Soxhlet principle—cyclical solvent reflux, selective solubilization, and continuous concentration—the system enables reproducible quantitative extraction of lipids from solid or semi-solid matrices such as foodstuffs, feed, soil, and biological tissues. Unlike single-sample units, the R-Series integrates parallel thermal management, independent condensation pathways, and modular solvent handling to ensure inter-sample equivalence under identical thermodynamic conditions. Its robust stainless-steel frame, corrosion-resistant solvent pathways, and integrated drip management architecture meet long-term operational demands in QC laboratories operating under GLP or ISO/IEC 17025 frameworks.

Key Features

• Independent PID-controlled heating blocks per sample position—enabling precise temperature regulation (±0.5 °C) across all channels without cross-talk or thermal drift.
• Dual-path water-cooled condenser manifold with individually adjustable coolant flow rates—ensuring uniform condensation efficiency and minimizing solvent loss across all extraction vessels.
• Modular S-type extraction thimbles equipped with ground-glass stopcocks—facilitating seamless transition from extraction to post-extraction solvent recovery or distillation without disassembly.
• Stable vertical support rack with reinforced condenser alignment guides—preventing mechanical stress during prolonged operation and ensuring leak-free solvent circulation.
• Quick-release sample tube holders with solvent-resistant PTFE seals—allowing rapid loading/unloading while maintaining vapor-tight integrity during active cycles.
• Integrated thermal cut-off protection and ambient vapor detection—meeting IEC 61010-1 safety requirements for Class II laboratory equipment.

Sample Compatibility & Compliance

The R-Series accommodates standard cellulose or glass-fiber extraction thimbles (25–100 mm diameter) and supports common organic solvents including petroleum ether (bp 40–60 °C), diethyl ether, chloroform, and hexane. It is validated for use with heterogeneous samples up to 5 g dry weight per thimble, including ground cereals, meat products, dairy powders, and environmental solids. The system conforms to method-specific validation criteria outlined in USP , FDA 21 CFR Part 11 (when paired with compliant LIMS integration), and EU Regulation (EC) No 882/2004 for official feed and food controls. All wetted components comply with FDA 21 CFR 177.2600 for repeated solvent contact.

Software & Data Management

While the R-Series operates as a standalone benchtop instrument, its analog control architecture is fully compatible with external data acquisition systems via 4–20 mA analog outputs (optional retrofit). Temperature logs from each heating block can be interfaced with validated SCADA or ELN platforms supporting audit-trail functionality per 21 CFR Part 11. For laboratories requiring full digital traceability, Behr recommends pairing the system with third-party lab automation middleware that supports instrument driver protocols (e.g., Modbus RTU over RS-485). Calibration records, maintenance logs, and run parameters are maintained manually per ISO/IEC 17025 clause 7.7, with built-in calibration port access for periodic verification using NIST-traceable thermocouples.

Applications

• Routine fat content quantification in cereal grains, oilseeds, and processed foods per AOAC 991.36 and ISO 6496.
• Lipid recovery from animal feed formulations for nutritional labeling and quality assurance.
• Extraction of hydrophobic contaminants (e.g., PCBs, PAHs) from soil and sediment samples prior to GC-MS analysis.
• Standardized crude fat determination in dairy products—including cheese, butter, and infant formula—under IDF Standard 143A.
• Method development and validation studies where inter-sample comparability and thermal consistency are critical.

FAQ

What solvent volumes are supported per extraction channel?
Each position accepts standard thimbles paired with solvent reservoirs of 100 mL, 250 mL, or 300 mL capacity—configurable at time of order based on application throughput and evaporation rate requirements.
Is the system compatible with 115 V power infrastructure?
Yes—dual-voltage models (115/230 VAC, 50/60 Hz) are available; current draw scales proportionally (10/20 A at 115 V; 8/16 A at 230 V).
Can extraction be paused mid-cycle without compromising integrity?
The system supports manual interruption via front-panel power toggle; however, solvent reflux must be allowed to fully condense and drain before opening any thimble housing to prevent vapor release or thermal shock.
How is temperature uniformity verified across positions?
Each heating block includes a calibrated PT100 sensor traceable to national standards; users may perform inter-channel uniformity checks using a multi-channel data logger with certified Class A probes.
Are spare parts and service documentation available globally?
All consumables—including stopcock assemblies, condenser gaskets, and heating element cartridges—are stocked by Behr’s authorized distribution network in EMEA, North America, and APAC regions, with technical manuals provided in English, German, and French.