Colintech AutoHS 128 Automated Static Headspace Sampler

Overview

The Colintech AutoHS 128 is a fully automated static headspace sampler engineered for high-throughput, reproducible volatile organic compound (VOC) analysis in regulated and research laboratories. It operates on the principle of equilibrium static headspace—where analytes partition between the liquid/solid matrix and the gas phase above it at controlled temperature and time—enabling quantitative determination without solvent interference or column contamination. Designed for seamless integration with any GC or GC/MS system (regardless of manufacturer), the AutoHS 128 incorporates an integrated pressure control module that eliminates the need for inlet modifications or third-party adapters. Its dual-channel sample extraction needle and static-dynamic compensation methodology minimize carryover and maximize transfer efficiency—critical for trace-level analysis of both polar and non-polar compounds across diverse matrices including pharmaceuticals, environmental water, food packaging, and forensic evidence.

Key Features

• Dual-flow extraction needle architecture with near-zero dead volume tubing—reducing cross-contamination and enabling reliable analysis after high-concentration samples.
• 128-position unattended sample capacity with intelligent overlapping heating: 15 independent heater zones dynamically schedule vial heating intervals to maintain throughput without thermal lag.
• Precision temperature control (±1.0 °C) across all heated zones—including vial oven, transfer line, and injection valve—ensuring method robustness and inter-laboratory reproducibility.
• Four configurable headspace modes: Gas Purge (for rapid removal of atmospheric interference), Constant Mode (standard equilibrium sampling), Time-Gradient Mode (kinetic profiling), and Multiple Headspace Extraction (MHE) for absolute quantification without calibration standards.
• Time-based injection volume control: dwell time adjustment replaces fixed-loop hardware, offering continuous volumetric flexibility from sub-µL to full-loop equivalents without mechanical reconfiguration.
• Intuitive dynamic GUI with real-time status visualization, method parameter logging, and context-sensitive diagnostics—designed for operation by technicians with minimal chromatography training.

Sample Compatibility & Compliance

The AutoHS 128 accommodates standard 20 mL crimp-top headspace vials compliant with ASTM D6866, ISO 11843, and USP residual solvents guidelines. Its inert flow path—constructed from silanized stainless steel and PTFE-lined components—preserves integrity of thermally labile and reactive analytes. The system supports GLP/GMP workflows through audit-trail-enabled method storage, user-access controls, and electronic signature-ready operation logs. While not pre-certified for FDA 21 CFR Part 11, its software architecture provides the foundational data integrity features required for validation—including immutable run records, timestamped parameter changes, and role-based permission tiers.

Software & Data Management

Controlled via Windows-based Colintech HS-Link software, the AutoHS 128 delivers method development tools including thermal ramp profiling, multi-step equilibration sequencing, and MHE curve modeling. All methods are stored with metadata (operator ID, instrument serial, date/time stamp) and exportable in CSV or XML format for LIMS integration. Raw acquisition files include complete thermal history per vial, pressure transients during injection, and real-time valve actuation timestamps—supporting root-cause analysis during method troubleshooting or regulatory review.

Applications

• Pharmaceutical QC: Residual solvent testing per ICH Q3C guidelines using USP compliant protocols.
• Environmental labs: EPA Method 502.2 and 8260D-compliant VOC screening in groundwater and wastewater.
• Food & beverage: Flavor compound profiling, ethanol quantification, and packaging migration studies (e.g., limonene in PET bottles).
• Forensic toxicology: Blood alcohol concentration (BAC) and volatile drug metabolite detection.
• Materials science: Outgassing analysis of polymers, adhesives, and battery electrolytes under accelerated thermal conditions.

FAQ

Is the AutoHS 128 compatible with Agilent, Thermo, Shimadzu, and PerkinElmer GC systems?
Yes—the built-in pressure regulation and universal interface protocol ensure plug-and-play connectivity without hardware modification.
What is the difference between AutoHS 128A and AutoHS 128B?
AutoHS 128A supports all four operational modes (Gas Purge, Constant, Time-Gradient, MHE); AutoHS 128B is limited to Constant Mode only.
Can the agitation module be added post-purchase?
Yes—the optional vial shaker is field-upgradable and integrates seamlessly via firmware update and mechanical bracket installation.
Does the system support method validation per ISO/IEC 17025 requirements?
Yes—temperature uniformity mapping reports, carryover testing protocols, and precision/repeatability assessment templates are included in the validation support package.
How is carryover mitigated during high-concentration sample sequences?
Through the dual-flow needle design, active bake-out cycles between injections, and programmable needle purge gas flow rates up to 100 mL/min.