JK-O1 Automated Headspace Sampler (Refurbished)

Overview

The JK-O1 Automated Headspace Sampler (Refurbished) is a precision-engineered dynamic headspace sampling system designed for reproducible, trace-level analysis of volatile organic compounds (VOCs) in solid, liquid, or semi-solid matrices. It operates on the principle of equilibrium headspace gas-phase extraction followed by quantitative transfer into a gas chromatograph (GC) via a heated, inert stainless-steel transfer line. Unlike static headspace systems, the JK-O1 employs controlled carrier gas purging across the sample headspace to enhance analyte recovery—particularly beneficial for low-volatility or strongly matrix-bound compounds. Its thermally stabilized architecture—including independently regulated valve oven, heated transfer line, and sample incubation chamber—eliminates condensation artifacts and ensures quantitative integrity from vial to injection port. The system is fully compatible with major GC platforms (Agilent, Thermo Fisher, Shimadzu, PerkinElmer, and domestic Chinese instruments), supporting method transfer without hardware modification.

Key Features

• Fully automated 12-position sample tray with programmable incubation, enabling unattended batch processing of up to twelve 10 mL or 20 mL headspace vials.
• Triple-zone independent temperature control: valve oven (ambient–180 °C, ±0.3 °C stability), transfer line (ambient–180 °C, ±0.5 °C stability), and sample incubation chamber (ambient–180 °C, ±0.3 °C stability, low-noise thermal design).
• Heated stainless-steel transfer line with 0.2 mm internal diameter—minimizing dead volume, reducing adsorption losses, and maintaining analyte integrity during transport.
• Fixed 1.0 mL sample loop (customizable upon request), pneumatically actuated with high-cycle durability and minimal carryover (<0.01% typical after standard wash protocol).
• Intuitive membrane keypad interface (9-key layout) for direct parameter entry—no PC dependency required for routine operation; supports method recall and real-time status monitoring.
• Robust mechanical design optimized for laboratory environments requiring long-term reliability under GLP-compliant workflows.

Sample Compatibility & Compliance

The JK-O1 accommodates standard crimp-top or screw-cap headspace vials (10 mL and 20 mL formats), including those with PTFE/silicone septa compliant with USP and ISO 8536-2 specifications. Its thermal performance meets critical requirements for pharmacopeial methods: USP (Residual Solvents), EP 2.4.24, and JP 17 (Organic Volatile Impurities). For environmental and food testing, it aligns with EPA Method 502.2 (VOCs in drinking water) and ASTM D3699 (hydrocarbon solvents in paints). All temperature zones are calibrated traceable to NIST standards, and thermal stability data logs are available for audit purposes. While the unit itself does not include built-in 21 CFR Part 11 compliance features (e.g., electronic signatures or audit trails), its operational parameters can be integrated into validated LIMS or chromatography data systems that provide full regulatory documentation.

Software & Data Management

The JK-O1 operates as a standalone peripheral device with embedded firmware—no proprietary software installation required. All method parameters (incubation time/temperature, pressurization duration, purge flow rate, loop fill time, injection delay) are stored in non-volatile memory and recalled via keypad navigation. For laboratories requiring centralized control and electronic recordkeeping, the sampler supports TTL-level trigger signals and analog voltage output for synchronization with GC autosampler interfaces or third-party acquisition software (e.g., OpenLab CDS, Chromeleon, Empower). Raw thermal calibration reports and factory verification certificates are supplied with each refurbished unit. Optional RS-232 or USB-to-serial adapters enable basic remote command execution (e.g., START, PAUSE, RESET) via ASCII protocol for integration into custom automation scripts.

Applications

The JK-O1 delivers consistent performance across regulated and research-driven applications requiring high sensitivity and inter-laboratory reproducibility. In pharmaceutical quality control, it quantifies residual solvents (e.g., acetone, methanol, dichloromethane) in active pharmaceutical ingredients (APIs) and finished dosage forms per ICH Q3C guidelines. In forensic toxicology, it enables precise ethanol and volatile drug metabolite determination in blood and tissue homogenates. Food and flavor laboratories utilize it for aroma profiling—capturing esters, aldehydes, and terpenes from dairy, fruit, and fermented products. Environmental labs apply it to VOC screening in wastewater, soil extracts, and indoor air samples per EPA TO-15 and ASTM D5197 protocols. Coatings and polymer manufacturers rely on its accuracy for benzene, toluene, and xylene (BTX) analysis in adhesives, inks, and packaging films.

FAQ

Is this unit certified for use in GMP-regulated environments?
The JK-O1 refurbished unit is supplied with full calibration documentation and thermal verification reports. While it lacks native 21 CFR Part 11 functionality, it is routinely deployed in GMP labs when integrated with compliant chromatography data systems that manage user access, audit trails, and electronic signatures.
What maintenance is required for long-term reliability?
Routine maintenance includes quarterly inspection of septa, annual validation of temperature zones using calibrated digital thermometers, and periodic replacement of pneumatic seals per manufacturer-recommended intervals (typically every 12–18 months under continuous use).
Can the 1.0 mL loop be replaced with alternative volumes?
Yes—custom loop volumes (e.g., 0.5 mL or 2.0 mL) are available as field-installable kits. Loop exchange requires standard hex tools and takes under 15 minutes; no recalibration is needed beyond post-installation leak testing.
Does the system support pressure-controlled vial pressurization?
Yes—the JK-O1 uses regulated carrier gas (N₂ or He) for precise headspace pressurization (0–30 psi adjustable), ensuring consistent loop filling and minimizing vial-to-vial variability.
Are spare parts and technical support available internationally?
Original OEM spares—including valve manifolds, heating cartridges, and vial trays—are stocked globally through authorized distribution partners. Remote diagnostics and application support are provided in English, with response times under 2 business hours during standard working days.