Jinpu GAS-10A Automated Gas Sampler
| Brand | Jinpu |
|---|---|
| Origin | Shandong, China |
| Model | GAS-10A |
| Sample Capacity | 10 gas sampling bags |
| Control Interface | LCD touch screen |
| Actuation | Solenoid-valve-based automated sequencing |
| Application Domain | Ambient air pre-concentration, VOC analysis, environmental monitoring, laboratory GC/GC-MS sample introduction |
Overview
The Jinpu GAS-10A Automated Gas Sampler is a dedicated benchtop sample introduction system engineered for reproducible, unattended delivery of gaseous samples—typically collected in flexible gas sampling bags (e.g., Tedlar®, FlexFoil®, or laminated aluminum foil bags)—into analytical instruments such as gas chromatographs (GC), GC-mass spectrometers (GC-MS), and atmospheric pre-concentrators. It operates on a fixed-sequence, solenoid-valve-driven pneumatic architecture that eliminates manual syringe or valve-switching interventions. The system does not perform concentration or cryofocusing; rather, it serves as a precise, timed interface between stored bagged samples and the inlet of downstream analytical hardware. Its design aligns with standard practices for ambient air and industrial emission testing where multi-sample batch analysis is required under time-sensitive stability constraints—particularly for reactive or adsorptive volatile organic compounds (VOCs) whose integrity degrades within hours post-collection.
Key Features
- 10-position automated sample carousel accommodating standard 1–10 L gas sampling bags with compatible septum-sealed or quick-connect fittings
- Integrated LCD touch interface enabling intuitive method setup—including dwell time per sample, purge cycles, injection volume control (via regulated carrier gas flow), and sequence scheduling
- Solenoid-valve manifold with chemically inert wetted path (stainless steel and fluoropolymer components) to minimize adsorption and cross-contamination
- Programmable delay timing between injections to accommodate instrument thermal equilibration or column reconditioning periods
- Real-time status feedback including valve actuation confirmation, pressure stabilization alerts, and sequence progress tracking
- Compact footprint (W × D × H: 320 × 420 × 280 mm) suitable for integration into GC labs, mobile monitoring vans, or ISO/IEC 17025-accredited environmental testing facilities
Sample Compatibility & Compliance
The GAS-10A supports common gas sampling media compliant with EPA Method TO-14A, TO-15, and ASTM D5502 for ambient and workplace air analysis. It is compatible with bag materials certified for trace-level VOC retention (e.g., ≥95% recovery for C₂–C₁₂ hydrocarbons over 24 h at 25 °C). While the unit itself is not CE- or UL-certified, its operational logic and mechanical design adhere to IEC 61000-6-2/6-3 immunity/emission standards typical for laboratory instrumentation. When used in GLP or GMP environments, audit trails may be maintained externally via timestamped method logs exported to CSV or integrated with LIMS via RS-232 or optional USB-to-serial interface.
Software & Data Management
The GAS-10A operates via embedded firmware without external PC dependency. All method parameters—including sample order, hold time, purge duration (0–120 s), and injection duration (0.1–5.0 s)—are configured directly on the touch interface and retained in non-volatile memory. No proprietary software installation is required. For laboratories requiring electronic records compliance (e.g., FDA 21 CFR Part 11), method files and run logs can be manually archived and linked to instrument acquisition data. Optional firmware updates are delivered via USB flash drive and include version-controlled release notes traceable to internal QA documentation.
Applications
- High-throughput screening of ambient air samples for regulatory compliance (e.g., EPA National Air Toxics Assessment)
- Industrial hygiene monitoring across petrochemical, semiconductor, and pharmaceutical manufacturing sites
- Method validation studies comparing bag stability across storage durations and temperatures
- Teaching laboratories demonstrating automated sample introduction principles in analytical chemistry curricula
- Supporting multi-point odorant profiling in wastewater treatment or landfill gas characterization workflows
FAQ
Does the GAS-10A perform cryogenic pre-concentration?
No. It is a passive transfer device only. Pre-concentration must be achieved upstream using dedicated cryo-trap or sorbent-based atmospheric pre-concentrators.
What is the maximum recommended storage time for samples in bags prior to analysis?
For optimal VOC recovery, analysis should occur within 24–48 hours of collection, depending on compound volatility and bag material. The GAS-10A’s sequencing capability helps enforce this window by prioritizing time-critical samples.
Can the system interface with third-party GC autosamplers or data systems?
It operates independently but provides TTL-compatible trigger output to synchronize injection timing with GC start commands. Direct digital integration (e.g., Ethernet, Modbus) is not supported.
Is calibration required before use?
No factory calibration is performed, as the system delivers volumetrically undefined pulses governed by user-set flow rates and timing. Users must validate transfer efficiency using certified gas standards per their SOPs.
What maintenance is recommended for long-term reliability?
Quarterly inspection of solenoid valves and O-rings, plus replacement of septa after every 50 injections or per bag manufacturer guidelines, ensures consistent sealing and flow integrity.
