GBPI GB-DK1 – Headspace Gas Analyzer (Residual O2 & CO2 for MAP Packaging)
- Precision benchtop headspace gas analyzer for modified atmosphere packaging (MAP) in food and pharmaceutical products
- Rapid simultaneous analysis of residual Oxygen (O2) and Carbon Dioxide (CO2) concentrations
- Advanced sensing technologies: Optical Fluorescence sensor for O2 and Non-Dispersive Infrared (NDIR) for CO2
- Measurement ranges: O2 from 0% to 25% (±0.5%); CO2 from 0% to 100% (±2%)
- Ultra-low micro-sampling volume requiring only ≥5 mL for O2 and ≥20 mL for CO2 analysis
- Automated sample puncture needle fixture with integrated particle and moisture barrier filter
- Ideal for coffee capsules, snack pouches, fresh meat trays, pharmaceutical blister packs, and ampoules
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The GBPI GB-DK1 (also designated GBM-D1) is an advanced, high-precision laboratory headspace gas analyzer engineered to measure residual oxygen (O2) and carbon dioxide (CO2) proportions inside sealed packages, rigid containers, and pharmaceutical barrier closures. Designed to support quality assurance protocols across modified atmosphere packaging (MAP), vacuum-flushed pouches, and controlled-atmosphere food storage, this benchtop analytical device delivers fast, repeatable headspace composition verification.
In modern protective packaging, ambient air is systematically evacuated and replaced with inert shielding gas mixtures (such as nitrogen and carbon dioxide) to arrest oxidative degradation, inhibit aerobic bacterial growth, and prevent lipid rancidity. However, micro-leaks in seal seams or insufficient gas flushing during industrial form-fill-seal operations lead to elevated residual oxygen levels, drastically reducing shelf life. Operating as a specialized headspace gas analyzer, the GBPI GB-DK1 employs a precision puncture probe and septa-sealing protocol to extract a minimal gas aliquot directly from the package headspace without ambient atmospheric ingress.
Dual Sensor Technology: Optical Fluorescence & NDIR
The instrument combines two non-depleting sensing principles: a luminescence optical fluorescence sensor for oxygen and a high-stability non-dispersive infrared (NDIR) absorption sensor for carbon dioxide. Unlike traditional electrochemical fuel cells that consume electrolyte and require frequent sensor replacements, optical fluorescence sensing provides rapid response times, long sensor lifespans, and zero drift from acidic combustion by-products.
Micro-Volume Sampling for Low-Headspace Packages
Equipped with a micro-volume pneumatic sampling circuit, the analyzer requires as little as 5 mL of gas volume for oxygen analysis and 20 mL for combined CO2 measurement, making it uniquely capable of testing small pharmaceutical vials, single-serve coffee capsules, and tight-fitting vacuum blister packs.
Enhanced Shelf-Life Control & Quality Compliance
Monitoring internal atmosphere changes over prolonged shelf-life aging trials provides empirical evidence to select appropriate high-barrier flexible substrates and determine expiry dates. The instrument assists food packaging technologists in validating nitrogen-flush cycle effectiveness and confirming container closure integrity before large-scale commercial distribution.
With an intuitive touchscreen display, automatic data logging, USB data export, and customizable alarm thresholds, the GB-DK1 ensures robust packaging atmosphere verification for food processors and pharmaceutical packaging lines.
GBPI GB-DK1 Headspace Gas Analyzer – Technical Specifications
| Technical Parameter | Specification Details |
|---|---|
| Test Principle | Puncture Extraction Headspace Analysis (Fluorescence O2 + NDIR CO2) |
| Measurable Gases | Oxygen (O2) and Carbon Dioxide (CO2) |
| Oxygen (O2) Range & Accuracy | Range: 0% ~ 25%; Accuracy: ±0.5% (Fluorescence Optical Sensor) |
| Carbon Dioxide (CO2) Range & Accuracy | Range: 0% ~ 100%; Accuracy: ±2% (Non-Dispersive Infrared Sensor) |
| Minimum Sampling Volume | O2: ≥5 mL; CO2: ≥20 mL (At standard atmospheric pressure) |
| Measurement Response Time | Approximately 10 ~ 15 seconds per measurement cycle |
| Sample Introduction Fixture | Hypodermic puncture needle with inline moisture and particulate filter |
| User Interface & Display | Integrated color LCD display showing real-time gas percentages and pass/fail status |
| Overall Dimensions | 350 mm (L) × 330 mm (W) × 200 mm (H) |
| Instrument Net Weight | Approximately 5 kg (Compact portable benchtop) |
| Power Supply | 220 VAC ±10% 50 Hz / 120 VAC ±10% 60 Hz |
Key Features & Engineering Highlights
- Dual Gas Measurement: Quantifies both Oxygen and Carbon Dioxide concentrations in a single rapid testing sequence.
- Optical Fluorescence Sensing: Eliminates consumable lead-based fuel cells, providing superior sensor longevity and rapid recovery.
- High-Stability NDIR Sensor: Infrared optical filter delivers precise carbon dioxide readings across the full 0% to 100% spectrum.
- Ultra-Low Gas Sampling Volume: Allows testing of tight packaging formats, blister pockets, and small vials with as little as 5 mL headspace.
- Protective Fluid Separation Filter: Integrated dual-stage particulate and liquid trap prevents liquid food ingestion into sensitive sensors.
- Portable Lightweight Chassis: Weighing only 5 kg, the unit can be effortlessly moved between laboratory benches and packaging line stations.
- Data Export & Audit Trail: Complete historical test storage with USB export and external printer support for packaging batch records.
Standard Package & Accessories
| Item Description | Quantity |
|---|---|
| GBPI GB-DK1 Headspace Gas Analyzer Mainframe Unit | 1 Unit |
| Sampling Probe Handle with Integrated Needle Assembly | 1 Set |
| Replacement Hypodermic Sampling Needles | 5 Pcs |
| Self-Adhesive Foam Packaging Septa Pads (Airtight Puncture Discs) | 1 Pack (1000 Pcs) |
| Inline Particulate & Moisture Protection Filters | 5 Pcs |
| Power Adapter, Operating Manual & Calibration Certificate | 1 Set |
Target Industry Applications
Modified Atmosphere Packaging (MAP)
Verifying gas flushing ratios (N2/CO2) in fresh meat trays, bakery goods, prepared salads, and shredded cheese pouches.
Coffee & Snack Foods
Measuring residual oxygen inside nitrogen-dosed coffee capsules, whole bean bags with one-way degassing valves, and potato chip bags.
Pharmaceuticals & Biologics
Monitoring headspace oxygen in nitrogen-purged injectable vials, prefilled syringes, and lyophilized medicine packaging.
Bottling & Beverage Cans
Evaluating neck headspace oxygen and dissolved gas equilibrium in beer bottles, wine containers, and carbonated soft drink cans.