AutoBench Integrated Laboratory Workstation with ESI Autosampler

Overview

The AutoBench Integrated Laboratory Workstation with ESI Autosampler is an engineered platform designed for high-integrity, automated liquid sample introduction in inductively coupled plasma (ICP) and ICP-mass spectrometry (ICP-MS) laboratories. Built upon ESI’s three-decade legacy in trace elemental analysis automation, the system integrates precision robotics, chemically inert fluidics, and modular workspace architecture into a single compact footprint. Its core operational principle relies on programmable XYZ-axis motion control to deliver repeatable, low-memory, contamination-minimized sample aspiration and delivery—critical for sub-ppt-level quantitation in environmental, clinical, geochemical, and nuclear applications. Unlike standalone autosamplers, the AutoBench embeds ancillary subsystems—including dual-wash stations, vacuum-assisted waste management, and reagent storage—within a unified structural frame, thereby eliminating inter-unit cabling, reducing cross-contamination pathways, and streamlining validation documentation across GLP/GMP environments.

Key Features

• Chemically inert sample path: All wetted components—including syringe barrels, needle housings, calibration arms, and fluidic manifolds—are fabricated from high-purity PFA, ETFE, or fused silica; zero metallic leaching ensures compatibility with ultra-trace metal analysis per ISO 17025 and USP /.
• Dual independent wash stations: Each station supports configurable rinse solvents (e.g., 2% HNO₃, ultrapure water, organic modifiers) and dwell-time programming to minimize carryover (<0.005% typical for Cd, Pb, U standards).
• Robust XYZ robotic architecture: X-Y gantry utilizes stainless-steel linear guides with sealed stepper motors; Z-axis rotary arm employs harmonic drive reduction for positional repeatability ±10 µm over 10⁶ cycles.
• Intelligent collision recovery: Integrated force-sensing feedback enables automatic retraction and re-homing upon physical obstruction—preserving needle integrity and preventing system downtime during unattended operation.
• Modular service compartments: Dedicated, ventilated bays house vacuum pump (oil-free diaphragm type), waste reservoir (1.5 L capacity with level sensor), and consumables drawer (supports up to 12 reagent bottles and 48 vials).
• Dual 7-inch capacitive touch displays: Primary interface controls motion sequencing and method execution; secondary screen provides real-time status monitoring (pressure, vacuum, wash cycle progress, error logs) and supports audit-trail-enabled user login per FDA 21 CFR Part 11 requirements.

Sample Compatibility & Compliance

The AutoBench accommodates standard 12 × 75 mm, 16 × 100 mm, and 20 × 120 mm borosilicate glass or polypropylene vials, as well as custom rack formats via configurable tray adapters. It interfaces natively with Thermo Fisher iCAP RQ/Q, Agilent 8900/7900, PerkinElmer NexION series, and Bruker Aurora M90 via standardized RS-232/USB/Ethernet protocols—fully compliant with ASTM D5673 (ICP-MS multi-element analysis) and ISO/IEC 17025:2017 Clause 6.4.2 (equipment suitability verification). All firmware revisions include electronic signature support, secure audit trails, and method versioning—validated for regulated pharmaceutical QC and environmental testing laboratories.

Software & Data Management

Control is managed through ESI’s AutoSuite™ v4.x software suite, which supports method-driven workflow automation, including auto-dilution, internal standard spiking, and bracketed calibration. Data export conforms to ASTM E1382-compliant ASCII and .csv formats, with optional integration into LIMS platforms via ODBC or HL7 messaging. Raw motion logs, wash cycle records, and user activity timestamps are stored locally with SHA-256 hashing and encrypted backup—meeting ALCOA+ data integrity principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available).

Applications

• Regulatory environmental testing: EPA Method 200.8, 6020B, and ISO 17294-2 for wastewater, soil digests, and airborne particulate filters.
• Clinical trace element analysis: Serum, urine, and whole blood quantification of essential/toxic metals (e.g., As, Se, Co, Mo) under CLIA and CAP guidelines.
• Geochemical reference material certification: High-precision analysis of NIST SRM 1640a, 1643e, and BCSS-1 using matrix-matched calibration strategies.
• Nuclear fuel cycle monitoring: U/Pu isotopic ratio determination in spent fuel reprocessing streams with minimized isobaric interference.
• High-throughput QA/QC: Daily instrument performance checks (IPC, CCV, MDL verification) executed without manual intervention across 24/7 shift schedules.

FAQ

Is the AutoBench compatible with my existing ICP-MS system?
Yes—the AutoBench supports native communication with all major ICP-MS platforms via factory-loaded device drivers and configurable serial/Ethernet handshaking protocols.
Can it handle viscous or particulate-containing samples?
It accommodates samples up to 15 cP viscosity and suspended solids <5 µm when used with optional 0.45 µm inline filtration; larger particles require pre-filtration per ISO 15587-1.
What maintenance intervals are recommended?
Wash station tubing replacement every 6 months; syringe seal inspection quarterly; full robotic calibration annually—documented in the included IQ/OQ/PQ validation package.
Does it support remote diagnostics and firmware updates?
Yes—secure TLS 1.2-enabled remote access allows authorized service engineers to perform diagnostics, log review, and over-the-air firmware upgrades without physical presence.
Is training and application support included?
All systems ship with on-site installation, operator certification, and access to ESI’s global application scientists for method development assistance under the standard warranty period.