METTLER TOLEDO InMotion™ Multifunctional Autosampler for Liquid Chromatography and Analytical Instrument Integration

Overview

The METTLER TOLEDO InMotion™ Multifunctional Autosampler is an engineered automation solution designed to integrate seamlessly with high-precision analytical instruments—including liquid chromatography systems, titrators (e.g., Excellence Series), density meters, and refractometers. Unlike conventional autosamplers limited to fixed-sequence injection, the InMotion platform operates on a flexible workflow architecture grounded in deterministic robotic motion control and bidirectional instrument communication. Its core functionality leverages a programmable Cartesian or articulated robotic arm (depending on model series) to execute precise vial handling, cap manipulation, syringe aspiration, and multi-point washing—enabling true walk-away operation across heterogeneous sample sets. The system adheres to fundamental principles of analytical automation: repeatability through calibrated motor positioning, traceability via electronic logging, and contamination mitigation via validated cleaning sequences. It is not a standalone chromatographic detector but a sample introduction and preparation subsystem engineered for interoperability within regulated laboratory ecosystems.

Key Features

• Modular Scalability: Select from three base platforms—InMotion Flex (entry-level throughput), Pro (mid-range capacity with extended reach), and Max (highest density loading)—each supporting field-upgradable modules including additional peristaltic pumps, temperature-controlled sample carousels (e.g., water-jacketed turntables), and CoverUp™ automated lid-opening mechanisms.
• CoverUp™ Safety System: A pneumatically actuated, force-limited lid removal mechanism that verifies seal integrity prior to opening and applies controlled torque during closure—minimizing aerosol generation and operator exposure while preserving sample integrity under volatile or hazardous conditions.
• PowerShower™ + Immersion Wash Protocol: Dual-stage cleaning combining high-velocity solvent jetting (PowerShower™) with submersion rinsing in dedicated wash wells; programmable dwell times, solvent selection, and rinse cycles ensure carryover reduction below 10 ppm for critical applications such as pharmaceutical assay validation.
• SmartSample™ Intelligent Identification: Integrated RFID/NFC tag reading synchronized with METTLER TOLEDO Excellence Series balances; automatically captures mass, tare, net weight, and user-defined metadata at point-of-weighing and propagates it to the autosampler’s run queue—eliminating manual transcription errors and enabling dynamic reordering without positional constraints.
• Space-Optimized Kinematics: Pro and Max models feature a vertically articulating robotic arm capable of accessing inner-ring positions on high-density sample trays—achieving up to 380 × 25 mL vial capacity within a footprint of ≤ 650 mm × 600 mm.

Sample Compatibility & Compliance

The InMotion autosampler accommodates standard ANSI/SLAS-compliant microtiter plates (96-/384-well), screw-cap vials (4–40 mL), and custom-fit titration cups (up to 80 mL). All wetted materials—including syringe barrels, needle guides, and wash station components—are constructed from chemically resistant PEEK, stainless steel 316L, and fluoropolymer-coated surfaces to withstand aggressive solvents (acetonitrile, chloroform, concentrated acids/bases) and high-salinity matrices. From a regulatory standpoint, the system supports 21 CFR Part 11 compliance when operated with LabX® software: electronic signatures, role-based access control, immutable audit trails, and full event logging (including lid status, wash cycle completion, error recovery attempts) are natively recorded. It aligns with ISO/IEC 17025 requirements for equipment qualification and is routinely deployed in laboratories maintaining GLP (OECD Principles) and GMP (ICH Q2(R2)) documentation standards.

Software & Data Management

Control and method development occur exclusively through METTLER TOLEDO LabX® software—a centralized, server-based platform supporting multi-instrument orchestration. LabX enables creation of nested workflows where autosampler actions (e.g., “aspirate 50 µL from vial #42, inject into HPLC, trigger UV detection at 220 nm”) are embedded within broader analytical sequences. All parameters—including dwell time, injection volume, wash solvent sequence, and temperature setpoints—are version-controlled and exportable as XML-based method files. Raw event logs include timestamps accurate to ±10 ms, sensor feedback (torque monitoring during lid removal), and hardware health diagnostics (motor current draw, vacuum pressure stability). Data exports comply with ASTM E1384 and ISO 11783-10 formats for third-party LIMS integration.

Applications

The InMotion platform serves routine and regulated environments requiring reproducible sample handling across diverse modalities: unattended titration series for raw material QC in food & beverage manufacturing; sequential density/refractive index measurements for polymer formulation R&D; multi-analyte LC-UV injections in environmental water testing labs; and parallel dissolution testing in pharmaceutical development. Its flexibility makes it particularly suited for laboratories transitioning from single-instrument automation to integrated analytical workcells—where one autosampler services multiple endpoints without physical reconfiguration.

FAQ

Is the InMotion autosampler compatible with non-METTLER TOLEDO chromatography systems?
Yes—via standardized RS-232, Ethernet/IP, or Modbus TCP interfaces; OEM-specific driver packages are available upon request.
Can I validate cleaning efficiency for my specific analyte matrix?
Absolutely—the PowerShower™ protocol allows user-defined solvent gradients, contact times, and repetition counts; validation reports can be generated directly from LabX® audit logs.
Does the system support ambient, chilled, or heated sample storage?
Chilled operation (4–15 °C) is supported using optional Peltier-cooled carousels; heated configurations require external incubation solutions.
What happens if a vial cap is cross-threaded or over-torqued?
The CoverUp™ system monitors real-time torque and halts operation if resistance exceeds configurable thresholds—triggering an alert and logging the event for root-cause analysis.
How is firmware updated, and is downtime required?
Firmware updates are performed remotely via LabX®; hot-swappable modules permit rolling upgrades with <5 minutes of scheduled interruption per component.