• We specialize in custom gas chromatographs
    SRI Instruments manufactures preconfigured and custom-built GCs, and chromatography data systems for use with any brand. All of our products are rugged, portable, and quickly field deployable.
  • Free Tech Support Monday-Friday 7am-4pm PDT
    When you call SRI Instruments, we always answer the phone, typically on the first ring— with no outsourced call center, no auto-attendant, or voicemail menus between you and the answers you seek from our knowledgeable technical staff.

  • Model 420 Cannabis Testing Gas Chromatograph
    The Model 420 is specifically made to test for cannabinoids. This GC is easy to use, compact, and only costs $4,995.00
  • Single or multiple channel data systems
    PeakSimple chromatography data systems consist of hardware and software. The hardware is available as a stand-alone data system for connection to almost any model GC, HPLC, or CE system. The same hardware is supplied as standard equipment with every SRI 8610C, 8610D, 410, and 310 GC.
  • Rent a Gas Chromatograph
    SRI has 20+ Gas Chromatographs available to rent. With varying configurations to fit your analytical needs.

    Rental conditions are 20% of the GC's value each month, or 1% a day, with a minimum of 10 days. If rental fees are paid when due, 1/2 of the payments made become equity towards purchasing the rental.
  • Educational Gas Chromatographs
    Compact, low cost, and easy to use educational GCs. Perfect for use in learning enviornments, SRI offers an Educational FID, TCD, or CCD. The Educational FID GC system is ideal for undergraduate chemistry classes or graduate level research, because of its low cost and complete upgradeability. Our educational models are only available to educational institution customers. No retail sales are premitted.
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Preview of the Model 420

Posted on June 15, 2016

This video showcases the current prototype for the Model 420 medical cannabis gas chromatograph. The model 420 is a low cost, portable gas...

How to check for leaks on an SRI GC

Posted on May 11, 2016

In the latest video of our tech support seires, we show you how to install a column into an on-column injection port


In this video we show you our most popular detectors. For more information on these detectors, please check out our GC detectors section of this...

Hydrogen Generator Video

Posted on April 29, 2016

Our latest troubleshooting video is up. This video showcases the H2-100 Hydrogen Generator.



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What's new
This GC is an even lower cost solution for analyzing CBD and THC in cannabis. With a price tag of only $4,995.00, the model 420 is the most affordable fully...
We have updated out document on running the Multiple Gas #5 Gas Chromatograph. Here is a link to the PDF

Digital 8610C/B Manuals available

Posted on March 21, 2016

Manuals for the 8610C and 8610B can be downloaded from our documents download page, under the maintenance section.

Documents Downloads back up

Posted on February 25, 2016

The document downloads section is now back up.

Multiple Gas Analyzer #5 (MG#5)

Posted on February 02, 2016

SRI's newest configuration, the Multiple Gas Analyzer #5, is now available. Check out this document for more details 

New Document Uploaded

Posted on November 11, 2015

SRI TUV Certification has been uploaded

Click here to view our TUV Certificate

srigc.com has launched it's new website

Posted on June 20, 2015

SRI is pleased to announce our new website is now live. 

Although all the information from our previous website has been moved over to the new, some bugs...
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