Rackmount - MIR

Rackmount - MIR
Enhanced Performance

VOC Analyzer

VOC Analyzer

VOC Analyzer Overview

LGR's new VOC Analyzer is a fast, field-deployable, sensitive gas analyzer based on LGR's patented mid-infrared incoherent cavity ringdown spectrometry technique (mid-IR iCRDS).  The VOC Analyzer employs a widely tunable External Cavity Quantum Cascade Laser and an optical cavity as an absorption cell to provide simultaneous detection of multiple VOCs (e.g., PCE, TCE, DMMP, etc) with extremely high sensitivity. 

No longer do you have to wait for hours or days before getting reliable readings or use costly consumables – LGR’s new VOC Analyzer provides continuous concentration measurements of multiple volatile organic compounds in real time with sub-ppb precision -- without any carrier gas or any cumbersome sampling containers.  As a result, the cost per concentration measurement is extremely attractive compared with traditional time-consuming and complex techniques that involve collecting field samples and using laboratory GC/MS.

As an example of the sensitivity and precision that the VOC Analyzer can provide, here are some measureable gases with corresponding limits of detection (LOD):

Compounds measured

Limit of Detection (typical, 3-sigma)

Refrigerants (e.g., R11, R134)

< 0.3 ppb

Trichloroethylene (TCE) / Tetrachloroethylene (PCE)

< 0.5   ppb


< 10 ppb


< 0.3 ppb

Of course, the VOC Analyzer measures many other gases, thus a comprehensive list cannot be presented here. 

As with all LGR analyzers, the VOC Analyzer has an internal computer (Windows OS) that can store data practically indefinitely on its hard disk drive.  Furthermore, as with all LGR analyzers, this Analyzer may be controlled remotely via the Internet. This capability allows the user to operate the analyzer using a web browser practically anywhere Internet access is available. Remote access allows full control of the instrument and provides the opportunity to obtain data and to diagnose the instrument operation without being on site.