Heated 12 position auto-sampler for automation and high throughput gas chromatography analysis.
Swapping out sample cylinders between subsequent runs takes too much of your lab technician’s time. The Wasson-ECE AS202 Gas Auto-sampler allows for high throughput analysis of unknowns without the need for hourly attention from technicians. The oven accommodates up to twelve 500 mL or nine 1-liter sample cylinders. This capacity decreases the need for personnel performing repetitive time-consuming tasks which saves your lab time and money.
Cold spots in sample introduction lines between the sample cylinder and gas chromatograph greatly affect analyte relative standard deviation (% RSD). The AS202 Gas Auto-sampler is equipped with a heated transfer line to eliminate sample condensation. This provides faster, more precise, more accurate, and more consistent sample introduction and therefore, more accurate analyte quantitation of unknown samples. Process modifications made on erroneous quantitation of analytes are costly mistakes.
Erroneous decision-making can be caused by quantitation of analytes from carry-over contamination between samples. Wasson-ECE AS202 software sample acquisition parameters can be customized to eliminate carryover between unknown samples through programmable purge cycles and vacuum pump operation.
Wasson-ECE has four decades of gas chromatography experience offering our customers turn-key solutions for their lab and process floors. The AS202 gas auto-sampler was our first product and has increased the productivity and capability of our GC lab and our customers' laboratories worldwide.
Heated primary oven housing 12 unknown samples: Temperature controlled up to 135°C for optimal sample conditioning and vapor pressure management.
Heated transfer line to GC to prevent sample condensation: Maintains sample integrity from cylinder to injection point.
Customizable sample acquisition and automation: Flexible software control allows for custom sampling sequences, purge times, and analysis protocols.
Universal GC compatibility: Works with any GC configured with a gas sampling valve, not limited to specific manufacturers.
Swapping out sample cylinders between subsequent runs takes too much of your lab technician’s time. The Wasson-ECE AS202 Gas Auto-sampler allows for high throughput analysis of unknowns without the need for hourly attention from technicians. The oven accommodates up to twelve 500 mL or nine 1-liter sample cylinders. This capacity decreases the need for personnel performing repetitive time-consuming tasks which saves your lab time and money.
Cold spots in sample introduction lines between the sample cylinder and gas chromatograph greatly affect analyte relative standard deviation (% RSD). The AS202 Gas Auto-sampler is equipped with a heated transfer line to eliminate sample condensation. This provides faster, more precise, more accurate, and more consistent sample introduction and therefore, more accurate analyte quantitation of unknown samples. Process modifications made on erroneous quantitation of analytes are costly mistakes.
Erroneous decision-making can be caused by quantitation of analytes from carry-over contamination between samples. Wasson-ECE AS202 software sample acquisition parameters can be customized to eliminate carryover between unknown samples through programmable purge cycles and vacuum pump operation.
Wasson-ECE has four decades of gas chromatography experience offering our customers turn-key solutions for their lab and process floors. The AS202 gas auto-sampler was our first product and has increased the productivity and capability of our GC lab and our customers' laboratories worldwide.
Heated primary oven housing 12 unknown samples: Temperature controlled up to 135°C for optimal sample conditioning and vapor pressure management.
Heated transfer line to GC to prevent sample condensation: Maintains sample integrity from cylinder to injection point.
Customizable sample acquisition and automation: Flexible software control allows for custom sampling sequences, purge times, and analysis protocols.
Universal GC compatibility: Works with any GC configured with a gas sampling valve, not limited to specific manufacturers.
Automated compositional analysis of natural gas samples for BTU content, moisture, and impurities in pipeline quality control applications.
High-throughput analysis of refinery gas streams, LPG products, and petrochemical feedstocks for composition verification and contamination monitoring.
Automated analysis of air samples, soil gas, and groundwater headspace for volatile organic compounds (VOCs) and hazardous air pollutants in environmental compliance monitoring.
Process development and catalyst evaluation studies requiring repeated analysis of gas-phase reaction products under controlled conditions.
Independent studies show >50% improvement in analytical precision (RSD) compared to manual sampling due to elimination of human variability and consistent sample introduction conditions.
Capable of analyzing 12 samples unattended over 8-12 hours, representing a 3-4x increase in daily sample throughput compared to manual operations.
Programmable purge cycles and heated transfer lines reduce sample carryover to <0.1% for most analytes, meeting stringent analytical requirements.
Typical ROI achieved within 12-18 months through reduced labor costs and increased laboratory productivity.
The Gas Auto-sampler ensures that sample analysis is not only faster, but also more precise, accurate, and consistent. In Table 1 below, you can compare the GC analysis results for 2 mL samples of n-pentane and n-hexane at 100 psi in propane. In the first run, the sample is sent to the GC from the auto-sampler at ambient temperature; in the second run the auto-sampler heats the samples to 130°C before injection.
The results show a 240% increase in n-hexane and a 72% increase in n-pentane when the gas sample is heated using the Gas Auto-sampler.
- 12 × 500mL cylinder capacity
- Standard heated oven (up to 135°C)
- Basic software package
- Standard transfer line materials
- 9 × 1L cylinder capacity
- Extended heating capability
- Advanced software with method development tools
- Enhanced transfer line for reactive compounds
- Special materials for corrosive samples
- Extended temperature ranges
- Custom cylinder sizes and configurations
- Integration with specific GC models and data systems
- Accommodates up to twelve 500 mL or nine 1-liter cylinders
- Maximum oven temperature: 135°C
- Heated transfer line to GC: 135°C
- Maximum sample pressure: 1000 psig (dependent on valve configuration)
- Vacuum pump/gas purge to minimize cross-contamination
- Compatible with Agilent 6890, 7890, and 8890 GCs
- Compatible with OpenLAB ChemStation software in stand-alone mode
- Compatible with alternative chromatography data systems in stand-alone mode
- Optional: Specially passivated tubing for reactive components
- PC-based control software with intuitive interface
- Sample Capacity: 12 × 500mL or 9 × 1L sample cylinders
- Temperature Range: Ambient to 135°C
- Temperature Stability: ±2°C
- Pressure Rating: Up to 1000 psig
- Transfer Line Heating: Up to 135°C
- Purge Gas: Nitrogen or Helium compatible
- Vacuum System: Integrated vacuum pump for sample line evacuation
- Control System: PC-based Windows software
- Communication: RS-232/USB interface
- Standards Compliance: ASTM D1945, ASTM D1946, ISO 6974 compatible
- Safety Features: Over-temperature protection, pressure relief, emergency stop
- Dimensions: 24" W × 18" D × 20" H (61 × 46 × 51 cm)
- Weight: Approximately 75 lbs (34 kg)
- Construction: Stainless steel wetted parts, aluminum housing
- Finish: Powder-coated aluminum exterior
- Door: Insulated access door with viewing window
- Mounting: Benchtop installation
- Electrical: 115/230 VAC, 50/60 Hz, 15A maximum
- Compressed Air: Not required
- Purge Gas: Nitrogen or Helium, 99.9% purity minimum, 30-100 psig
- Ventilation: Standard laboratory ventilation adequate
- Computer: Windows 10/11 compatible PC with USB port
- GC Interface: 1/8" or 1/4" tubing connection to GC sampling valve
- Installation Space: Minimum 30" × 24" bench space
- Environmental: 15-35°C ambient temperature, <80% relative humidity
Lab Devices Brochure
Wasson-ECE Instrumentation
101 Rome Ct., Fort Collins, Colorado USA 80524
Phone: +1 (970) 221-9179
Fax: +1 (970) 221-9364
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