Huayisanpu AHS-50 Fully Automated Static Headspace Sampler
| Brand | Huayisanpu |
|---|---|
| Origin | Beijing, China |
| Model | AHS-50 |
| Instrument Type | Static Headspace Sampler |
| Automation Level | Fully Automated |
| Sample Tray Capacity | 50 positions |
| Vial Size Compatibility | 10 mL and 20 mL standard crimp-top vials |
| Oven Temperature Range | Ambient to 380 °C (±0.5 °C accuracy, 1 °C increment) |
| Valve & Transfer Line Temperature Range | Ambient to 260 °C (±1 °C accuracy, 1 °C increment) |
| Quantitative Loop Volume | 1 mL |
| External Event Control Channels | 15 |
| Timing Resolution | 0.1–99 minutes (timing error <0.1%) |
| Pneumatic Actuation Pressure | <0.4 MPa (adjustable) |
| System Pressure Rating | >0.4 MPa |
| Heated Incubation Zones | 4 independent zones |
| Repeatability | RSD <1% (dependent on GC system performance and operator technique) |
| Power Requirement | <1000 VA |
| Trigger Signal Output Latency | <2 s |
| Dimensions (H×W×D) | 580 × 564 × 666 mm |
| Net Weight | ~40 kg |
Overview
The Huayisanpu AHS-50 is a fully automated static headspace sampler engineered for precise, reproducible volatile compound analysis in conjunction with gas chromatography (GC) systems. It operates on the principle of static headspace equilibrium—where a sealed sample vial is heated to promote partitioning of analytes between the liquid/solid matrix and the vapor phase above it. Once thermal equilibrium is achieved, a defined volume of headspace gas is withdrawn via a thermostatted six-port valve and transferred directly into the GC inlet. This method eliminates solvent interference, minimizes matrix effects, and ensures high sensitivity for trace-level volatiles—including residual solvents, environmental contaminants, flavor compounds, and degradation products—in pharmaceuticals, food, environmental, and forensic laboratories.
Key Features
- Fully automated operation with 50-position sample carousel, supporting both 10 mL and 20 mL standard crimp-top headspace vials without adapter changes.
- Independent temperature control for four heated incubation zones, enabling parallel equilibration of heterogeneous sample batches under distinct thermal protocols.
- Precise oven temperature regulation from ambient to 380 °C (±0.5 °C), with 1 °C programmable increments—critical for optimizing partition coefficients of high-boiling-point analytes.
- Valve and transfer line heating up to 260 °C (±1 °C), preventing condensation and carryover during injection of thermally labile or high-molecular-weight volatiles.
- 1 mL fixed-volume quantitative loop ensures consistent injection volume and supports method transfer across laboratories.
- 15 programmable external event channels for synchronized triggering of GC oven ramping, detector activation, or auxiliary instrumentation—fully compliant with ASTM D6866, USP <467>, and ISO 11843-2 workflows.
- Pneumatically actuated sampling mechanism with adjustable pressure (0.4 MPa), ensuring long-term reliability and leak-free operation.
Sample Compatibility & Compliance
The AHS-50 accommodates industry-standard 10 mL and 20 mL headspace vials, including those with PTFE-silicone septa certified for low bleed and high-temperature stability. Its design conforms to GLP/GMP documentation requirements: all temperature setpoints, equilibration times, valve actuation events, and system status logs are timestamped and exportable for audit trails. When integrated with GC systems validated per FDA 21 CFR Part 11, the AHS-50 supports electronic signatures, user access control, and data integrity frameworks essential for regulated environments—particularly in pharmaceutical residual solvent testing (ICH Q3C) and controlled substance analysis.
Software & Data Management
Controlled via a dedicated Windows-based interface, the AHS-50 software enables method development with multi-step thermal profiling (e.g., multi-stage equilibration, re-equilibration loops), sequence scheduling, and real-time monitoring of temperature stability, valve position, and pneumatic pressure. All acquisition parameters—including vial ID mapping, event timestamps, and hardware diagnostics—are embedded in raw data files (CSV/ASCII format) for seamless LIMS integration. Audit-ready reports include calibration verification logs, maintenance history, and deviation alerts—facilitating compliance with ISO/IEC 17025 and internal QA/QC procedures.
Applications
- Pharmaceutical QC: Residual solvent quantification per USP <467> and ICH Q3C guidelines.
- Food & Beverage: Flavor profiling, ethanol content determination, and spoilage marker detection (e.g., acetaldehyde, dimethyl sulfide).
- Environmental Testing: VOC analysis in water, soil extracts, and air samples per EPA Method 502.2 and 8260D.
- Polymers & Packaging: Migration studies of monomers, plasticizers, and adhesives into simulants.
- Forensic Toxicology: Blood alcohol and volatile drug metabolite screening.
FAQ
What types of GC inlets is the AHS-50 compatible with?
It interfaces seamlessly with split/splitless, PTV, and cold-on-column inlets via standard pneumatic trigger signals and heated transfer lines.
Can the AHS-50 perform multiple equilibration steps within a single run?
Yes—its software supports up to three sequential equilibration phases with independent temperature and timing parameters per step.
Is method validation support documentation available?
Huayisanpu provides IQ/OQ templates, temperature uniformity mapping protocols, and repeatability test reports aligned with ASTM E2655 and ISO 17025 Annex A.
Does the system require carrier gas conditioning or special GC interface hardware?
No—standard helium, hydrogen, or nitrogen carrier gas lines connect directly; no additional backflush valves or pressure regulators are needed.
How is carryover minimized between injections?
Through programmable bake-out cycles for the valve and transfer line, coupled with inert surface passivation and pressure-pulsed purge functionality.
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