Gas Chromatography

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Gas Chromatography

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Attention Thomas Scientific Customers

Due to the current pandemic, lead times for PPE items are longer than what is listed on our website. Please expect shipping delays of all PPE products during this time.

  • Parker Balston’s NitroVap-1LV and NitroVap-2LV Nitrogen Generators can provide clean, ultra-dry nitrogen to sample evaporators. These systems offer high nitrogen output flows in a miniature cabinet. The user can activate the manual SLEEP economy mode to eliminate compressed air consumption…

  • Securely holds up to 36 headspace vials (fits 6, 10, or 20 mL vials). Vials lock in rack for convenient one-handed cap removal. Openings in the bottom of each well facilitate drainage. Alphanumeric indexing on rack simplifies sample identification. Easy to clean and fully autoclavable.*…

  • Tedlar® Gas Sampling Bag


    Tedlar is recommended in several US EPA methods for sampling VOCs and sulfur compounds. Our Tedlar is made from a high-quality 2 mil Tedlar film for superior inertness, impermeability, sample integrity and good recovery data. Our Push Lock Valve (PLV) and seam-sealing process ensure that these bags…

  • Available in graphite or Vespel/graphite material. Graphite Ferrules Preconditioned to eliminate outgassing High-purity, high-density graphite Smoother surface and cleaner edges than conventional graphite ferrules Contain no binders that can off-gas or adsorb analytes Stable…

  • Split sample flow—perform dual-column confirmation analysis with a single injection Split column flow to two detectors Inlet and outlet ends match column curvature to alleviate connection strain

  • ADM Flow Meters

    Agilent Technologies

    Accuracy ±3% Operating temperature range: 0 to 45°C for instrument/-70 to 135°C for tubing Calibration traceable to NIST primary standards Measures flow rates from 0.5 to 1000 mL/min Split ratios ADM flowmeters allow most gas measurements with the touch of only…

  • Eraser Brush - Pencil


  • Graphite Tubes

    Agilent Technologies

    Graphite tubes are quality tested to ensure each batch passes our demanding performance specifications for contamination, sensitivity, precision, electrical resistance and lifetime. Use partitioned tubes for general purpose work and when you need the best detection limits with samples that…

  • Racks feature alphanumeric indexing for easier vial identification. Racks can be stacked for efficient storage. Fits most 2.0 mL, 12 x 32 mm vials (vials sold separately).

  • The Gas and Vapor sampler enables spot collection of environmental gas samples or low pressure gas streams in 200cm3 impervious resealable bags. Gas and vapor collection Resealable sample bags Ideal for field analysis

  • Our patented dual Vespel ring inlet seal greatly improves injection port performance—it stays sealed, even after repeated temperature cycles, without retightening the reducing nut! This seal features two soft Vespel rings, one embedded in its top surface and the other embedded in its bottom…

  • This kit contains the tubing and fittings needed to add an additional GC to your lab bench. Kit includes: tubing cutter, one 1/8-inch x 1/4-inch reamer, one 1/4-inch x 1/8-inch brass tube end reducer, one 7/16-inch wrench, one 1/2-inch wrench, four 1/8-inch brass tees, ten 1/8-inch brass nuts, ten…

  • Consistently make precise, clean, square cuts with a diamond blade Built-in magnifier to verify square cut Use with 0.25 mm ID to 0.53 mm ID tubing (0.78 mm OD maximum)

  • Eliminates handling costly, dangerous gas cylinders Reliable source of gas No more cylinder changing Silent operation Simple annual maintenance State-of-the-art, self contained Balston® Lab Gas Generators are a sensible alternative to old technology gas cylinders. They are cost effective…

  • Gas Clean Filters

    Agilent Technologies

    The Gas Clean Filter System delivers clean gases, reducing the risks of column damage, sensitivity loss and instrument downtime.

  • Tapered for high recovery of contents Work with Mininert sampling valves

  • Produces square, smooth cuts in 1/16-inch tubing Eliminates tubing distortion Cuts hard or soft copper, aluminum, brass, stainless steel, Monel alloy, or titanium Replaceable cutting wheel

  • Inspect inside surfaces of sample cylinders or other chambers 14" reach 100,000-hour LED life

  • Injector Mounting Post

    Agilent Technologies

  • Similar to the CG-4440 vacuum manifold, but with BOTH ENDS OF INERT GAS LINE OPEN to permit connection to the gas source and an oil bubbler. Hose connections have a 10mm small serration and a 11mm large serration.

  • Container, liner, and closure cleaned, assembled, and lot traceable Open-top caps PTFE faced 0.125" silicone septa Cleaned to U.S. EPA Protocol B specifications

  • Routine Maintenance with FastPack Inlet Kits What are the benefits of using a FastPack Inlet Kit? Injection port maintenance should be performed prior to installing any capillary column, and on a routine basis, based on the number of injections made and the cleanliness of the samples.…

  • Oxidation-resistant, chrome-plated Use when there is secondary pressure regulation downstream Identical gas purity protection as with dual-stage gas regulators

  • Diamond file: a useful tool for cutting capillaries and smoothing ends of capillaries. Square capillary ends without protruding particles are especially important for butt connections (e.g., in Valco unions). Magnifying lens: a very versatile tool for any laboratory. In capillary GC it is…

  • UHP brass regulators are the best choice when using ultra-high purity carrier gas for sensitive GC applications using MS, PID, or ECD detection methods. They feature reduced internal dead volume relative to stainless steel bodies. The 316L stainless steel diaphragm valve ensures leak-free shutoff.…

  • Recommended for most mass spectrometers. Ease at cold start. Low vapor pressure 10 -7 torr. Nontoxic and noncorrosive. Compatible with buna-N, neoprene, and Viton seals. Optimum vacuum pump performance. Lowest mass spectrometer background. Recommended for optimum mass spec performance.

  • Nitrogen Generators

    Parker Hannifin

    The Parker Balston Model UHPN2 Nitrogen Generator is completely engineered to transform standard compressed air into 99.9999% nitrogen, exceeding the specification of UHP cylinder gas. This system can produce up to 1.1 lpm of UHP nitrogen gas and is produced by utilizing a combination of…

  • Poor sensitivity, loss of sensitivity at high masses, or high multiplier gain during an auto tune are all indicators that your mass spectrometer source may need to be cleaned. Restek has assembled all of the necessary components for cleaning and polishing your ion source. The Restek GC-MS…

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