Annuo AS-3016 Multifunctional Liquid Autosampler for Gas Chromatography

Overview

The Annuo AS-3016 is a high-precision, multifunctional liquid autosampler engineered for seamless integration with gas chromatography (GC) systems. It implements a syringe-based, positive-displacement sampling mechanism with programmable depth control and real-time positional feedback via an absolute optical encoder—ensuring repeatable needle placement across all 160 sample positions without cumulative drift. Designed for unattended operation in regulated laboratory environments, the AS-3016 supports full method-driven automation including variable injection volume, multi-step solvent wash protocols, programmable dwell times, and PTV-compatible triggering modes. Its modular CAN bus architecture enables deterministic inter-module communication, while dual-tower configuration capability (with optional expansion tray) allows synchronized dual-injection workflows—critical for method validation, calibration series, or parallel column analysis.

Key Features

• 160-position 2 mL vial capacity with expandable tray architecture supporting up to 161 positions; dual-tower mode enables simultaneous injections with time reproducibility < 1 ms.
• 5-inch capacitive touchscreen HMI with guided workflow interface—supports step-by-step method setup, real-time status monitoring, and on-device diagnostics.
• User-definable injection parameters: depth (–2 to +35 mm), speed (fast/slow/custom), dwell time pre/post insertion (0–120 s), and viscosity delay (0–60 s).
• High-fidelity syringe actuation using precision stepper motors with buffered plunger drive—minimizing dead volume and enabling accurate low-volume delivery (down to 0.1 µL).
• Integrated barcode scanning support for sample tracking and LIMS interoperability; optional Peltier-cooled sample tray (–10 °C to 40 °C) available for thermally labile analytes.
• Comprehensive I/O interface: isolated TTL trigger lines, analog signal inputs, and Modbus RTU over RS-485—ensuring native compatibility with Agilent, Thermo Fisher, Shimadzu, PerkinElmer, and other GC platforms.
• Robust error-handling framework: input validation, hardware position verification, syringe stall detection, and automatic recovery from common fault conditions (e.g., clogged needle, empty solvent).

Sample Compatibility & Compliance

The AS-3016 accommodates standard 12 × 32 mm crimp-top or screw-cap vials (2 mL), as well as 10 mL and 20 mL formats via optional adapters. Solvent and waste reservoirs are configured with dedicated 19-position solvent wells and dual-waste ports to support multi-solvent wash sequences. All fluidic pathways use chemically resistant PTFE and stainless-steel components rated for common GC solvents (methanol, acetonitrile, chloroform, hexane). The system meets general-purpose laboratory safety requirements per IEC 61010-1 and electromagnetic compatibility standards EN 61326-1. While not certified for GMP production, its audit-trail-capable firmware, method locking, and user-access-level controls align with GLP documentation practices and support FDA 21 CFR Part 11 readiness when deployed with validated third-party LIMS or CDS software.

Software & Data Management

The AS-3016 operates natively via embedded firmware with local method storage (up to 20 methods). Full remote control is enabled through the provided Windows-based PC software, which offers complete bidirectional command-and-control—including real-time parameter adjustment, sequence editing, event logging, and CSV export of run logs and error reports. The software implements a secure user management system with three permission tiers (Operator, Supervisor, Administrator) and timestamps all critical actions. For enterprise integration, the device exposes a documented Modbus register map and USB HID class interface—facilitating custom scripting in Python, LabVIEW, or MATLAB. Audit trails include method version history, injection count per vial, wash cycle execution logs, and hardware calibration timestamps—all retained onboard for ≥30 days.

Applications

• Routine QC/QA testing in environmental labs (EPA Method 8260/8270), petrochemical refineries (ASTM D3606/D5501), and pharmaceutical stability studies (ICH Q2).
• High-throughput screening of volatile organic compounds (VOCs), residual solvents, and headspace analysis where reproducible low-volume injection is critical.
• Method development requiring precise gradient injection timing, sequential dilution series, or matrix-matched standard additions.
• Regulated compliance testing where traceability, operator accountability, and instrument state logging are required under ISO/IEC 17025 or CAP accreditation.
• Academic and industrial research labs performing automated GC-FID/ECD/MS workflows with minimal manual intervention.

FAQ

Does the AS-3016 support direct integration with Agilent OpenLab CDS or Thermo Chromeleon?
Yes—the device provides TTL-level external trigger and status signals compatible with standard GC vendor CDS platforms. Full bidirectional control requires the optional OEM driver or custom Modbus mapping.
Can the sample tray be cooled during operation?
The base model operates at ambient temperature. A Peltier-cooled tray option (–10 °C to 40 °C, ±0.5 °C stability) is available as a factory-configured upgrade.
What syringe sizes are supported, and how is calibration performed?
Syringes from 1 µL to 500 µL are supported. Calibration is performed via the PC software using gravimetric or volumetric reference standards; calibration coefficients are stored per syringe ID.
Is the firmware upgradable in the field?
Yes—firmware updates are delivered as signed binary files via USB stick and applied through the HMI without requiring service technician intervention.
How is needle carryover mitigated during high-concentration sample analysis?
The system executes up to 99 internal rinses per injection using selectable solvents, with customizable rinse volume, speed, and dwell time—validated to achieve < 0.01% carryover for typical GC applications.