Luchuang AHS-2036Plus Fully Automated Static Headspace Sampler (10.2-inch Touchscreen, 3 Heating Zones)
| Brand | Luchuang |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | OEM Manufacturer |
| Product Category | Domestic |
| Model | AHS-2036Plus |
| Instrument Type | Static Headspace Sampler |
| Automation Level | Fully Automatic |
| Vial Heating Range | Ambient to 260 °C |
| Valve Temperature Control Range | Ambient to 260 °C |
| Sample Loop Volume | 1 mL |
| Temperature Control Accuracy | ±0.1 °C |
| Sample Capacity | 30 or 36 vials |
| Vial Size | 20 mL (customizable to 10 mL) |
Overview
The Luchuang AHS-2036Plus is a fully automated static headspace sampler engineered for high-throughput, reproducible volatile organic compound (VOC) analysis in conjunction with gas chromatography (GC) and GC–MS systems. It operates on the principle of static headspace equilibrium: a sealed sample vial is heated to a defined temperature, allowing analytes to partition into the vapor phase above the sample matrix; the equilibrated headspace gas is then transferred quantitatively via a thermostatted six-port valve and inert transfer line into the GC injection port. This method eliminates matrix interference, minimizes carryover, and delivers exceptional sensitivity for trace-level VOC detection down to sub-ppb concentrations in aqueous, solid, and semi-solid matrices.
Key Features
- 10.2-inch high-resolution color touchscreen interface with intuitive icon-driven navigation—no specialized training required for routine operation.
- Triple independent heating zones enable staggered thermal equilibration across up to three vials simultaneously, reducing total cycle time by up to 40% compared to single-zone systems.
- Fully autonomous workflow: automatic vial positioning, pressurization, headspace sampling, loop filling, valve actuation, GC trigger synchronization, post-injection backflush, and vial ejection—all executed without manual intervention.
- Precision temperature control across all thermal zones (vial oven, valve block, transfer line) with stability <±0.5 °C and accuracy ±0.1 °C, ensuring compliance with ISO 17025 calibration traceability requirements.
- Inert flow path constructed from SilcoNert®-treated stainless steel and PFA tubing; entire valve-to-GC interface housed within a heated保温 zone to eliminate cold spots and prevent analyte condensation or adsorption.
- Integrated safety architecture: real-time self-diagnostic startup sequence, overtemperature cutoff, ground-fault circuit interruption (GFCI), and hardware-enforced pressure limit (0–0.25 MPa, continuously adjustable).
- Patented dual-stage backflush system (ZL 2021 2 1874159.8) ensures quantitative removal of residual volatiles between injections, achieving RSD <1.0% (n=6, 100 ppm ethanol in water).
- Step-motor-driven mechanics eliminate reliance on external carrier gas or compressed air—reducing infrastructure dependencies and operational hazards.
Sample Compatibility & Compliance
The AHS-2036Plus accommodates standard 20 mL crimp-top headspace vials (with optional 10 mL, 50 mL, or 100 mL configurations). It supports liquid, slurry, soil, tissue, and polymer samples—enabling direct analysis without derivatization or solvent extraction. The system conforms to multiple regulatory and methodological standards including HJ 679–2013, HJ 741–2015, HJ 1067–2019, HJ 642–2013, GB/T 5750.8–2006, and GA/T 842–2019. Its deterministic timing control, audit-trail-capable parameter logging, and hardware interlock design support GLP/GMP environments and FDA 21 CFR Part 11 readiness when paired with compliant chromatography data systems (CDS).
Software & Data Management
The embedded firmware provides full parameter configurability—including equilibration time (0–999 s), pressurization duration (0–999 s), sampling time (0–30 min), injection time (0–999 s), and bake-out duration (0–30 min). Real-time monitoring displays current temperature setpoints, actual readings, elapsed run time, system pressure, and valve status. All method parameters and run logs are timestamped and exportable in CSV format. Bidirectional GC control is supported via TTL/RS-232 interfaces, enabling synchronized start/stop commands and hardware-triggered acquisition. Dedicated drivers ensure plug-and-play compatibility with Agilent, Thermo Fisher, Shimadzu, PerkinElmer, and Waters GC platforms.
Applications
Typical applications include environmental testing (VOCs in groundwater, leachates, and soils per EPA Method 502.2/8260D equivalents), forensic toxicology (blood ethanol quantification per GA/T 842–2019), food safety (residual solvents, flavor volatiles, packaging migrants), pharmaceutical QC (residual solvents per ICH Q3C), and polymer degradation analysis. Its robust thermal management and low-RSD performance make it suitable for validated methods requiring long-term unattended operation across 24+ hour sequences.
FAQ
What vial formats does the AHS-2036Plus support?
Standard 20 mL screw-thread or crimp-top vials; optional configurations available for 10 mL, 50 mL, and 100 mL vials upon request.
Can the system be integrated with third-party GC data systems?
Yes—via TTL pulse output, RS-232 serial command protocol, or analog voltage trigger; drivers included for major CDS vendors.
Is the 1 mL sample loop volume fixed?
No—custom loop volumes (0.5 mL, 2 mL, 5 mL) are available as factory-configurable options.
Does the instrument meet ISO/IEC 17025 requirements for accredited labs?
Yes—the system’s traceable temperature calibration, deterministic timing, and full parameter audit trail support method validation and laboratory accreditation documentation.
What maintenance intervals are recommended?
Valve rotor seal replacement every 10,000 injections; transfer line bake-out weekly; full system performance verification quarterly using certified ethanol/water reference standards.
