Agilent 7697A Headspace Sampler (Refurbished, 111-Position)

Overview

The Agilent 7697A Headspace Sampler is a high-precision, thermally controlled sample introduction system engineered for quantitative volatile organic compound (VOC) analysis by gas chromatography (GC). Based on the proven architecture of the Agilent 7890 GC platform and 7693A liquid autosampler, the 7697A implements equilibrium headspace sampling—where analytes partition between a sealed liquid/solid matrix and its vapor phase at controlled temperature and pressure—followed by precise, carrier-gas-assisted transfer of the equilibrated vapor into the GC inlet. This principle ensures minimal matrix interference, excellent repeatability (RSD < 1.5% for replicate vials under GLP conditions), and compatibility with regulated workflows in environmental, pharmaceutical, forensic, and food safety laboratories. As a refurbished unit fully validated by SpectraLab Scientific, this instrument retains full OEM firmware, mechanical integrity, and calibration traceability—meeting operational readiness standards for ISO/IEC 17025-accredited labs.

Key Features

• 111-position standard sample tray with three dedicated priority slots for urgent samples—enabling dynamic reordering without sequence interruption
• Real-time automated vial leak detection during pressurization: eliminates false negatives from compromised seals and preserves method precision without manual calibration checks
• Independent regulation of vial pressure and column head pressure: prevents backpressure-induced peak distortion and ensures consistent transfer efficiency across diverse GC methods
• Hydrogen-compatible carrier gas operation with integrated safety interlocks and auto-sleep/wake cycling—reducing helium dependency while maintaining USP and ICH Q2(R2) compliance
• Multiple Headspace Extraction (MHE) and Multiple Headspace Concentration (MHC) modes: support up to 100 extraction cycles per vial for trace-level quantitation or residual solvent profiling per ASTM D7217 and USP
• Hot-swap tray functionality: allows loading of new vials mid-sequence, maximizing instrument uptime in high-throughput QC environments
• Integrated barcode reader with bidirectional data exchange: synchronizes sample IDs with LIMS or CDS prior to oven injection, supporting 21 CFR Part 11 audit trails when paired with OpenLAB CDS
• Ambient pressure compensation algorithm: maintains retention time stability and response reproducibility across shifts and facility locations—critical for multi-site method transfer

Sample Compatibility & Compliance

The 7697A accommodates industry-standard 10 mL, 20 mL, and 22 mL crimp-top or screw-cap headspace vials without adapters—ensuring compatibility with legacy and current Agilent, Thermo, and Shimadzu GC workflows. Its thermal control system delivers ±0.1 °C temperature stability across the 35–220 °C operating range, satisfying requirements for residual solvent analysis (USP , Ph. Eur. 2.2.48), ethanol testing (AOAC 982.21), and volatile impurity screening (ICH Q3C). All refurbished units undergo full functional verification against Agilent’s Factory Acceptance Test (FAT) protocol—including pressure integrity, temperature ramp linearity, vial pressurization repeatability, and GC interface synchronization—and are documented with a Certificate of Reconditioning compliant with ISO 17025 clause 6.6.

Software & Data Management

The 7697A integrates natively with Agilent OpenLAB CDS (versions C.01.08 and later) and MassHunter Quantitative Analysis, enabling method migration, electronic signature enforcement, and full audit trail generation per FDA 21 CFR Part 11. It also supports bidirectional communication with Waters Empower 2 and Empower 3 via Agilent’s Instrument Control Framework (ICF), allowing centralized scheduling and result aggregation in hybrid LC-GC labs. Method development is streamlined using Agilent’s Headspace Method Translator software, which converts parameters from legacy 7693A, 7697A, or third-party systems—reducing validation effort for method transfers. All sequence logs, pressure traces, and leak-check reports are timestamped and exportable in CSV or XML format for GLP/GMP documentation.

Applications

This system is routinely deployed in pharmaceutical QC labs for residual solvent quantitation in APIs and finished dosage forms; in environmental testing for VOCs in soil/water per EPA Methods 502.2, 524.2, and 8260D; in food and beverage analysis for flavor volatiles, ethanol, and packaging migrants; and in forensic toxicology for blood alcohol and volatile drug screening. Its MHE capability is particularly valuable for low-concentration analytes where single-extraction sensitivity is insufficient—such as formaldehyde in cosmetics (ISO 17228) or benzene in drinking water (EPA 524.4).

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 or workmanship.
Has the system been calibrated before shipment?
Yes—each unit undergoes full functional calibration and performance verification per Agilent’s OEM test specifications, including temperature accuracy, pressure control linearity, and vial seal integrity assessment.
Can it be integrated with non-Agilent GC systems?
Yes—the 7697A uses standard RS-232 and LAN interfaces and supports generic GC trigger protocols; integration with Thermo ISQ, Shimadzu GC-2010, or PerkinElmer Clarus systems is documented and supported.
What documentation is included?
Certificate of Reconditioning, FAT report, firmware version log, and complete set of Agilent user manuals (English) are provided digitally and on request in printed form.
Is hydrogen carrier gas operation safe in routine lab use?
Yes—when configured with Agilent’s certified hydrogen generator interface and installed per NFPA 55 and local fire codes, the system meets OSHA and ANSI Z240.1 safety requirements for H₂ use in analytical labs.