ATR SLE 350 Solvent Recovery System

Overview

The ATR SLE 350 Solvent Recovery System is an engineered benchtop solution designed to capture, condense, and collect volatile organic solvents emitted during laboratory evaporation, concentration, and sample preparation workflows. Utilizing solid-state thermoelectric (Peltier) cooling technology, the system achieves rapid phase transition of solvent vapors—without refrigerants or moving compressors—by maintaining a precisely controlled cold surface at −20 °C. This enables high-efficiency condensation across a broad volatility range, including common solvents such as acetone, methanol, ethanol, hexane, dichloromethane, ethyl acetate, and acetonitrile. Unlike passive traps or dry-ice–cooled condensers, the SLE 350 delivers consistent thermal performance independent of ambient conditions, ensuring reproducible recovery rates across daily operation cycles. Its compact footprint and low acoustic signature allow seamless integration into fume hoods, glove boxes, or open lab benches—supporting both safety-compliant and space-constrained environments.

Key Features

• Semiconductor-based cooling architecture: Eliminates reliance on CFC/HFC refrigerants, compressor wear, and oil maintenance—ensuring long-term operational stability and compliance with EPA SNAP and EU F-Gas Regulation.
• −20 °C condenser surface temperature: Optimized for high-yield recovery of medium-to-high volatility solvents (boiling points 35–120 °C) without ice formation or frost accumulation.
• Integrated liquid-level detection: Capacitive sensor monitors solvent volume in the collection reservoir and triggers visual/audible alerts prior to overflow—preventing cross-contamination and downtime.
• One-touch operational interface: Microprocessor-controlled start/stop sequence with automatic defrost cycle initiation upon shutdown—minimizing user training requirements and procedural variability.
• Modular inlet/outlet configuration: Standard 1/4″ flare and 3/8″ barbed fittings enable direct connection to rotary evaporator vacuum lines, nitrogen blow-down manifolds, and automated sample concentrators.
• Corrosion-resistant internal pathway: Condensation chamber and fluid path constructed from electropolished 316 stainless steel and PTFE-lined components—resisting degradation from acidic, chlorinated, or polar solvents.

Sample Compatibility & Compliance

The SLE 350 is validated for use with solvent streams generated by ISO/IEC 17025-accredited laboratories performing residue analysis, environmental testing (e.g., EPA Method 502.2, 525.3), pharmaceutical stability studies (ICH Q5C), and food safety screening (AOAC 2007.01). It supports GLP and GMP-aligned workflows through traceable operational logs (via optional RS-232/USB data export) and meets OSHA 29 CFR 1910.1200 (HCS) requirements for minimizing employee exposure to hazardous vapors. While not classified as medical device or FDA 510(k)-cleared equipment, its design adheres to UL 61010-1 and IEC 61010-1 safety standards for laboratory electrical equipment.

Software & Data Management

The base SLE 350 operates without embedded software; however, optional firmware upgrade kits provide time-stamped event logging (power-on duration, total condensation cycles, alert history) via ASCII-formatted serial output. These logs are compatible with LIMS platforms supporting RS-232 input or USB-to-serial adapters. No proprietary drivers or cloud dependencies are required. Audit trail functionality satisfies basic 21 CFR Part 11 read-only record retention needs when paired with validated third-party data acquisition systems.

Applications

• Recovery of analytical-grade solvents from rotary evaporation distillates in QC/QA labs—reducing procurement costs and waste disposal burden.
• Continuous capture of nitrogen-purged solvent vapors during high-throughput LC-MS sample prep—lowering fume hood exhaust load and energy consumption.
• On-site reclamation of halogenated solvents (e.g., chloroform, carbon tetrachloride) in environmental testing labs—supporting ISO 14001 waste minimization objectives.
• Integration with automated parallel evaporators (e.g., Genevac, Biotage) to maintain vacuum integrity while preventing solvent backstreaming into sensitive pumps.
• Teaching labs requiring safe, low-maintenance solvent handling solutions compliant with ACS Committee on Chemical Safety guidelines.

FAQ

Does the SLE 350 require external coolant or dry ice?
No—it operates exclusively on 100–240 V AC power and uses thermoelectric modules for closed-loop cooling.
Can it handle water-miscible solvents like methanol or acetonitrile?
Yes—its −20 °C condenser surface ensures efficient capture of polar solvents with high vapor pressure at room temperature.
Is the collection bottle included with the system?
Yes—a 1 L borosilicate glass reservoir with PTFE-sealed cap and level indicator is supplied standard.
What maintenance is required?
Annual inspection of condenser surface cleanliness and verification of liquid-level sensor calibration—no filter replacements or refrigerant servicing needed.
How does it interface with vacuum-based instruments?
It installs downstream of the vacuum source, using its built-in check valve to prevent backflow while maintaining system vacuum stability within ±5 mbar.