Agilent Archon Purge and Trap Autosampler G7361A
| Brand | Varian |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | G7361A |
| Product Category | Chromatography |
| Usage Duration | 4 years |
| Warranty Period | 6 months |
| Instrument Model | G7361A |
| Condition | Refurbished, Fully Tested |
Overview
The Agilent Archon Purge and Trap Autosampler G7361A is a high-performance, fully automated sample introduction system designed for trace-level volatile organic compound (VOC) analysis in environmental, regulatory, and industrial laboratories. Originally developed by Varian (acquired by Agilent Technologies in 2010), the G7361A implements standardized purge-and-trap methodology per EPA Methods 502.2, 524.2, 524.4, and ASTM D5845. It integrates seamlessly with Agilent gas chromatographs (e.g., 7890B/8890 GC systems) and mass spectrometers (5977E/5975C MSD), delivering reproducible transfer of purged analytes from aqueous or solid-phase matrices into the GC inlet via cryogenic focusing on a Tenax–graphitized carbon black–Carbopack B trap. This refurbished unit has undergone full functional validation at SpectraLab Scientific’s ISO/IEC 17025-accredited calibration facility and meets all original equipment manufacturer (OEM) performance specifications for trap desorption efficiency (>95%), carryover (<0.1%), and cycle time consistency (±1.5 s).
Key Features
- Fully automated 40-position sample carousel with programmable vial heating (4–95 °C) and sparging control (0–100 mL/min N2)
- Integrated thermal desorption module with dual-stage cryofocusing (−30 °C pre-focus, −180 °C main focus using liquid N2 or cryo-cooler option)
- On-board leak-check diagnostics and real-time pressure monitoring across purge, trap, and transfer lines
- Modular design supporting optional accessories: solid-phase microextraction (SPME) adapter, headspace vial tray, and automated standard addition kit
- Robust architecture compliant with IEC 61000-4 electromagnetic immunity standards; CE-marked for laboratory use in EU member states
Sample Compatibility & Compliance
The G7361A accommodates 40-mL EPA vials, 22-mL headspace vials, and custom solid-phase sampling containers (e.g., soil extraction jars). It supports aqueous matrices (drinking water, wastewater, groundwater), soil slurries, and air-captured sorbent tubes. All operational parameters—including purge time (0–30 min), bake time (0–20 min), and desorption temperature ramp profiles—are configurable to align with US EPA SW-846 Method 5035A (soil) and Method 5021A (aqueous). The system’s firmware includes audit trail logging and user-access controls compatible with FDA 21 CFR Part 11 requirements when deployed with Agilent OpenLab CDS software (v2.5 or later). Routine operation satisfies GLP/GMP documentation needs through timestamped method execution logs and electronic signature support.
Software & Data Management
Control and method development are performed via Agilent ChemStation or OpenLab CDS software, both of which recognize the G7361A as a native instrument class. The autosampler communicates over RS-232 or LAN (with optional Agilent GPIB-to-Ethernet converter), enabling bidirectional status reporting and remote queue management. All method files, sequence tables, and diagnostic reports are stored in encrypted project folders with version history. System suitability test (SST) results—including surrogate recovery (e.g., fluorobenzene, bromofluorobenzene), internal standard precision (RSD <3%), and blank integrity—are auto-calculated and exported in CSV/PDF formats for regulatory submission. Firmware updates are applied via secure USB interface following Agilent’s validated patch protocol.
Applications
- Regulatory compliance testing for VOCs in drinking water per EPA UCMR 5 and California DWTP protocols
- Soil and sediment screening for chlorinated solvents (PCE, TCE), benzene-toluene-ethylbenzene-xylene (BTEX), and MTBE under ASTM D6888
- Pharmaceutical residual solvent analysis per ICH Q3C guidelines using headspace-compatible configurations
- Industrial hygiene monitoring of workplace air using sorbent tube desorption workflows
- Research-scale method development for emerging contaminants (e.g., 1,4-dioxane, haloacetonitriles) requiring sub-pptr detection limits
FAQ
Is this unit covered by Agilent’s original warranty?
No — this is a refurbished instrument with a 6-month limited warranty provided by SpectraLab Scientific, covering parts and labor for defects in materials and workmanship.
Does it include the original trap cartridges and consumables?
Yes — each unit ships with one set of certified Varian/Agilent trap cartridges (P/N 5190-1539), O-rings, septa, and purge tube assemblies, verified for leak integrity prior to shipment.
Can it be integrated with non-Agilent GC systems?
Yes — analog trigger outputs and TTL-compatible start/stop signals enable synchronization with third-party GCs (e.g., Thermo ISQ, Shimadzu GC-2030) using custom sequence programming.
What calibration documentation is included?
A full Certificate of Conformance, NIST-traceable calibration report (including purge flow verification, trap desorption efficiency, and carryover assessment), and system suitability test data are delivered digitally and on paper.
Is remote technical support available after purchase?
Yes — SpectraLab Scientific provides post-sale engineering support via email, screen-sharing sessions, and phone consultation during business hours (EST), including method optimization guidance and troubleshooting assistance.
