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.

  • Split/Splitless Inlet Gold Seals

    Agilent Technologies

    Using a patent pending manufacturing process, our new inlet gold seals eliminate tiny leaks from machining that can negatively impact your GC performance.

  • 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

  • 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.*…

  • 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…

  • Gas Sampling Bulbs, 250cc

    Bel-Art - SP Scienceware

    Polypropylene gas sampling bulbs have polypropylene stopcocks with free-turning Teflon® PTFE plugs. Ends accept 6.4 to 9.5mm (1/4 to 3/8") I.D. tubing Tube body is 5.1cm (2") O.D. x 22.2cm (8-3/4") long Stopcocks are 6.4cm (2-1/2") long Maximum recommended…

  • Three-way valves made of solid PTFE with hose nozzles. Resistant to chemicals. Very easy connection thanks to its excellent antifriction properties. Blue handles made of PP. Resistant to compression max. 1 bar Vacuum suitable up to 10 -1 mmHg Autoclavable

  • These electronic crimpers and decappers have a rechargeable 6.4-volt battery installed. The large battery allows for quick, powerful operation and a faster charge cycle, minimizing downtime. Charging the battery takes thirty minutes to two hours. The universal plug set includes U.S., European, UK,…

  • 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…

  • 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)

  • 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…

  • PTFE Ferrules

    Restek

    Upper temperature limit 250°C 100% PTFE; completely inert One-piece design requires no back ferrule

  • Ideal for cutting 1/16-inch tubing Cuts quickly, reducing distortion Perfect for quick cuts for non-critical applications or in "hard to get at" places After cutting, it is recommended that the dressing tool, cat.# 20188, be used to remove any burrs and to ream the tubing to a…

  • 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…

  • 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

  • SGE's microcontrol valves provide precision metering and on-off control of gas flows. They are designed specifically for chromatography applications and may be used at elevated temperatures from high vacuum to medium pressure. The valves are vacuum rated to a leak rate of 1 x 10- 5 cc/sec…

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

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

  • 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

  • Prevent small leaks from causing big problems with a Restek leak detector. Detects a broad range of gases and indicates leak severity with both an LED display and audible tone. No more waiting for a full charge—can be operated during charging or used up to 12 hours between charges.…

  • 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

  • Tedlar® Gas Sampling Bag

    MilliporeSigma

    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…

  • Snoop® Liquid Leak Detector Non-toxic Non- flammable in liquid state Dries clean Will not collect dust Virtually odorless liquid detects leaks in hard-to-reach areas including vertical surfaces. Contains no chlorine or halogen additives.

  • Mininert valves are very convenient for repetitive sampling and limit content exposure to the silicon septum. Models are available for screw-cap and crimp-top vials. The crimp-top valve for 20 mm ID glassware slides into the neck of the vial. Turn the threaded flange to secure a tight fit.

  • 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…

  • Glass Bubble Flow Meters

    Agilent Technologies

    Economical 10 or 100 mL These glass bubble flowmeters provide an economical way to monitor gas flow.

  • Made of high-quality stainless steel.

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