Chuanyi CYZDCQ-6 Six-Position Closed-Air-Circulation Oscillatory Liquid-Liquid Extractor

Overview

The Chuanyi CYZDCQ-6 Six-Position Closed-Air-Circulation Oscillatory Liquid-Liquid Extractor is an engineered platform for automated, reproducible liquid-liquid extraction (LLE) in analytical and environmental laboratories. It operates on a pneumatic oscillation principle—using controlled compressed air to induce gentle yet consistent back-and-forth motion within sealed extraction vessels—thereby enhancing mass transfer between immiscible phases without introducing mechanical shear or emulsion formation risks associated with rotary shakers or vortex mixers. Unlike open-bench LLE methods, the CYZDCQ-6 features a fully enclosed air recirculation system that isolates volatile organic compounds (VOCs) and hazardous vapors from the lab environment while maintaining stable thermal conditions during prolonged extraction sequences. Designed for compliance-driven workflows, it supports standardized protocols per EPA Method 3510C, ASTM D3764, and ISO 11337 for trace-level analyte recovery from aqueous matrices including wastewater, soil leachates, and biological fluids.

Key Features

• Simultaneous six-channel processing with independent parameter control per position—enabling parallel method development or multi-sample batch analysis.
• Closed-loop air circulation architecture with integrated activated carbon exhaust filtration and waste liquid adsorption modules—reducing operator exposure and meeting OSHA permissible exposure limits (PELs) for common solvents (e.g., dichloromethane, ethyl acetate, hexane).
• Pneumatically actuated oscillation mechanism delivering uniform amplitude and frequency across all vessels—minimizing inter-vial variability and improving inter-run precision (RSD < 3.2% for spiked recovery studies).
• 7-inch capacitive touch interface with intuitive workflow navigation, real-time status monitoring, and password-protected method storage—supporting up to 99 user-defined protocols with timestamped execution logs.
• Modular vessel support accommodating standard 250 mL, 500 mL, 1000 mL, and 2000 mL glass or PTFE-lined separatory funnels—facilitating scalability from screening to regulatory-compliant quantification.
• Programmable extraction intensity, cycle count (0–99), duration (0–999 s), and inter-cycle rest intervals—allowing optimization for labile compounds or viscous matrices without manual intervention.

Sample Compatibility & Compliance

The CYZDCQ-6 accommodates diverse sample types—including aqueous environmental extracts, clinical urine specimens, food homogenates, and pharmaceutical dissolution media—provided phase immiscibility is maintained under selected solvent systems. Its sealed operation meets key requirements for GLP-compliant laboratories conducting EPA SW-846 compliant extractions. The device supports audit-ready documentation through internal event logging (power-on time, method start/end timestamps, error codes) and optional USB data export compatible with LIMS integration. All wetted components are chemically resistant to halogenated hydrocarbons, esters, alcohols, and weak acids—validated per USP <661.1> extractables testing guidelines. No external ventilation hood is required when operated within ambient laboratory conditions (20–25 °C, RH < 70%). Safety certifications include CE marking (EMC Directive 2014/30/EU, Low Voltage Directive 2014/35/EU) and RoHS 2011/65/EU compliance.

Software & Data Management

The embedded firmware provides full method lifecycle management: creation, validation, versioning, and recall. Each extraction run generates a non-editable digital record containing operator ID, method name, vessel IDs, start/stop times, actual oscillation parameters, and fault alerts. Exported CSV files include metadata headers aligned with ISO/IEC 17025 documentation standards. Optional firmware upgrade enables 21 CFR Part 11-compliant electronic signatures and audit trail activation—supporting FDA-regulated QC/QA environments where data integrity and traceability are mandatory. No cloud dependency: all data resides locally unless explicitly exported via USB 2.0 port.

Applications

• Pre-concentration of priority pollutants (PAHs, PCBs, organochlorine pesticides) from surface water per EPA 8270D prior to GC-MS analysis.
• Isolation of acidic/basic/neutral fractions from complex environmental matrices using sequential pH-controlled extractions.
• Recovery of therapeutic drugs and metabolites from human plasma or urine in clinical toxicology labs.
• Standardized extraction of fat-soluble vitamins (A, D, E, K) from fortified dairy products according to AOAC 995.15.
• Method validation studies requiring high-throughput repeatability assessment across multiple concentration levels and matrix types.

FAQ

Does the CYZDCQ-6 require connection to an external fume hood?

No—the closed-air recirculation system with dual-stage charcoal filtration eliminates the need for ducted ventilation under normal operating conditions.
Can I use chlorinated solvents such as chloroform or carbon tetrachloride?

Yes, but extended exposure may reduce activated carbon service life; replace exhaust cartridges every 200 extraction hours when using highly volatile halogenated solvents.
Is the instrument compatible with third-party LIMS platforms?

Raw CSV exports contain structured fields for direct ingestion into most LIMS systems; custom API integration is available upon request for enterprise deployments.
What maintenance is required beyond routine cleaning?

Biannual inspection of pneumatic seals and pressure regulator calibration is recommended; no lubrication or alignment adjustments are needed during standard operation.
How is phase separation verified before manual drainage?

The instrument includes an integrated LED illumination strip and translucent vessel sleeves to enable visual confirmation of clear interfacial demarcation—no additional optics or sensors required.