Metler Toledo Liquidator 96 Manual Liquid Handling Workstation

Overview

The Mettler Toledo Liquidator 96 Manual Liquid Handling Workstation is an ergonomically engineered, benchtop-compatible tool designed for precise, high-throughput manual liquid transfer in life science and clinical research laboratories. Unlike motorized or software-dependent platforms, the Liquidator 96 operates on a purely mechanical lever-actuated principle—leveraging synchronized vertical displacement of 96 parallel pistons to deliver consistent aspiration and dispensing across all channels simultaneously. This design eliminates reliance on electronic control systems, reducing calibration complexity while maintaining traceable performance per ISO 8655-2 (volumetric accuracy standards for piston-operated pipettes). Engineered for routine use in ELISA, cell culture maintenance, PCR setup, and assay plate replication, it bridges the gap between single-channel manual pipetting and fully automated liquid handlers—offering reproducible results without infrastructure dependency or IT validation overhead.

Key Features

• Mechanical 96-channel synchronization: Single-lever actuation ensures simultaneous operation across all 96 tips—eliminating channel-to-channel timing drift and enabling true parallel processing.
• Ergonomic full-hand activation: Large-diameter handle and low-force LTS (Low-Torque Seal) tip attachment system reduce thumb fatigue and repetitive strain injury (RSI) risk during extended use.
• Modular deck configuration: Three fixed-position slots accommodate standard SBS-format plates (96-well or 384-well with optional adapter), reservoirs, and reagent troughs—optimized for laminar flow hood integration.
• No software, no programming: Fully standalone operation requires zero computer interface, driver installation, or method development—ideal for GLP-compliant environments where software validation is not required.
• Rapid cycle time: Full 96-well plate processing completed in ≤20 seconds; 25 plates processed within 10 minutes—demonstrating throughput comparable to entry-level robotic systems without associated maintenance or downtime.
• LTS tip compatibility: Supports Rainin’s standardized Low-Torque Seal tips (including sterile, filtered, and non-sterile variants) ensuring reliable sealing across the full 5–200 µL range.

Sample Compatibility & Compliance

The Liquidator 96 is validated for use with ANSI/SLAS-compliant microplates (96- and 384-well), deep-well blocks, and standard polypropylene reservoirs. Its mechanical architecture complies with ISO 8655-2 for volumetric accuracy and precision at nominal volumes (±5.0% CV at 5 µL; ≤2.0% CV at ≥50 µL per manufacturer specifications under controlled lab conditions). While not an electronically regulated device, its design supports adherence to Good Laboratory Practice (GLP) and current Good Manufacturing Practice (cGMP) workflows where manual intervention is permitted—particularly in early-stage assay development, QC release testing, and academic core facility settings. All consumables (LTS tips, adapters, trays) are manufactured under ISO 13485-certified processes.

Software & Data Management

The Liquidator 96 operates independently of software—no embedded firmware, no data logging, and no digital audit trail. This absence of electronic records aligns with laboratories seeking minimal regulatory burden for non-critical applications or those operating under simplified documentation frameworks (e.g., ISO/IEC 17025 Annex A.3 for manual methods). For users requiring traceability, external documentation (e.g., paper-based logbooks, LIMS-integrated sample tracking via barcode scanning of source/destination plates) remains fully compatible. Optional accessories—including height-adjustable stands (LIQ-AP) and dedicated reagent trays (LIQ-TRAY)—support standardized workflow documentation and spatial consistency across operators.

Applications

• ELISA washing and reagent addition: Simultaneous initiation and termination of wash steps across all wells—critical for minimizing inter-well variability in binding kinetics.
• Cell culture media exchange: Uniform transfer from 96-well plates to fresh plates or flasks without cross-contamination risk from tip reuse.
• qPCR master mix distribution: Precise, low-volume dispensing into reaction plates prior to thermal cycling—reducing pipetting-induced variability in Ct values.
• Compound dilution series and plate replication: Accurate serial transfers between mother and daughter plates for HTS screening campaigns.
• Yeast two-hybrid and protein crystallization screening: Reproducible dispensing into multi-condition arrays where volume fidelity directly impacts hit rate.
• Antibody production workflows: Medium replenishment in hybridoma cultures and IgG capture plate coating steps.

FAQ

Does the Liquidator 96 require calibration certification?
No formal calibration certificate is issued by default; however, users may perform in-house verification using gravimetric methods per ISO 8655-6, with documented SOPs and traceable weights.
Can it be used with 384-well plates?
Yes—when paired with the LIQ-384-PA adapter, the system maintains mechanical alignment and tip contact integrity across all 384 positions.
Is the device compliant with FDA 21 CFR Part 11?
Not applicable—the Liquidator 96 contains no electronic data capture or user-accessible software; therefore, Part 11 requirements do not apply.
What maintenance is required?
Routine cleaning of the lever mechanism and deck surface; annual inspection of piston seals recommended per Rainin’s service guidelines.
Are LTS tips interchangeable with other Rainin manual pipettes?
Yes—LTS tips are fully compatible across Rainin’s E4, XLS+, and Liquidator product lines, supporting unified consumable inventory management.