Gas chromatography is used to test for persistent organic contaminants in water, soils, sediments, and air (including the well-known greenhouse gases). These may include volatile and semi-volatile organic compounds, polycyclic aromatic hydrocarbons, pesticides, and halogenated compounds. Additional common uses are to study the decomposition of hydrocarbon materials originating from oil under natural conditions and the evaluation of the bioremediation efforts of polluted environments.
Known advantages of VUV Spectroscopy
- Unambiguous identification and quantitation of analytes in complex matrices, including structural isomers
- Rapid, single detector analysis of TO-15 air quality standard samples
- VUV AnalyzeTM provides a new tool for automated environmental analyte compound class characterization
- Complete PCB VUV library to support targeted analysis
- Easy to understand analysis by Beer-Lambert Law (same principle used in UV-Vis spectroscopy)
Solving Analytical Challenges in Environmental Science
Key Features of VUV Spectroscopy
- High degree of data analysis automation reduces human error
- Intuitive spectral fingerprint compound identification and Beer’s Law quantitation eliminates guesswork
- Software deconvolution of co-eluting analytes allows chromatography runtimes to be deliberately compressed
- Proprietary algorithms automate compound class characterization
Shining a new light in gas chromatography and streaming gas applications.
Everything absorbs strongly in the VUV spectrum. Compounds can be unambiguously identified and quantitated in a variety of applications including oil & gas, forensics, fragrances & flavors, petrochemical, environmental, and life science. VUV detectors provide unmatched selectivity of isomers and co-eluting analytes without the need for chromatographic baseline resolution. Unlike legacy detection methods, VUV spectroscopy allows for more automated analysis with lower risk of errors, shorter chromatography run times, and higher analytical throughput.
- Universal, yet selective detector with very sensitive spectral response
- Easy deconvolution and quantitation of co‑eluting analytes
- Robust technology with no reliance on vacuum pumps
- No calibration required – 1st principle detection technique provides a predictable linear response
- A non-destructive technique that compliments mass spectrometry
When Chemistry Stops and Physics BeginsNorman Fraley, Eurofins - Lancaster Laboratories
Norman Fraley, Eurofins - Lancaster Laboratories
Norman Fraley, Principal Chemist Eurofins – Lancaster Laboratories I hate derivatization. That being said, I love derivatization. What is there not to love about such an elegant chemical reaction where the purpose is to create something new from reagents you have just so you can see it and measure it better? Is your target compound...
Analytical performance characteristics of a new vacuum ultraviolet (VUV) detector for gas chromatography (GC) are reported.
Flow-modulated comprehensive two-dimensional gas chromatography combined with a vacuum ultraviolet detector for the analysis of complex mixtures – Journal of Chromatography A
This article is focused on the use of a vacuum ultraviolet absorption spectrometer (VUV) for gas chromatography (GC), within the context of flow modulated comprehensive two-dimensional gas chromatography (FM GC × GC).
Dr. Kevin Schug, the Shimadzu Distinguished Professor of Analytical Chemistry at UT Arlington, writes for the LCGC blog and details how VUV technology addresses problems related to column overload.
“The VUV detector has proven itself with the ability to distinguish olefins and aromatics from aliphatics – that’s a killer application given the complexity and time involved using any other technique. The VUV detector’s ability to perform a more accurate and much more robust PIONA analysis is an important milestone in its ongoing success.”
Bill Winniford, Fellow
Bill Winniford, Fellow, The Dow Chemical Company, Houston, Texas, USA
“VUV spectroscopy adds a dimension that is complementary to mass spectrometry, offering selectivity that is difficult to otherwise obtain.”
Hans-Gerd Janssen, Professor and Science Leader
Hans-Gerd Janssen, Professor, University of Amsterdam, and Science leader, Unilever Research Vlaardingen, the Netherlands
“One of the main advantages of VUV detection for us appeared to be the ability to gain more specific molecular information…co-elutions that we know exist but cannot be identified with FID can be unraveled.”
Pierre Giusti, Molecular Separation & Identification Service Manager, and Gaelle Jousset, Gas Chromatography Laboratory Manager
Pierre Giusti, Molecular Separation & Identification Service Manager, and Gaelle Jousset, Gas Chromatography Laboratory Manager, Research & Development, TOTAL Refining & Chemicals, Normandy, France
“The VUV detector will be used as a universal, calibration-free tool that provides the relative quantitative values of distinct molecules in mixtures in a rapid manner.”
Luigi Mondello, Chair of ISCC and GCxGC Conference in Riva del Garda, and Professor
Luigi Mondello, Chair of ISCC and GCxGC Conference in Riva del Garda, and Professor, University of Messina, Italy
“One thing that I really like about VUV is that it can be considered a universal detector but with the advantage of being familiar to us. We all used UV spectrometers in school.”
Nicholas Snow, Professor
Nicholas Snow, Professor, Seton Hall University, New Jersey, USA
“Eliminates ionization inefficiencies that are encountered in mass spectrometry analysis."
Mark R. Emmett, Ph.D.
Mark R. Emmett, Ph.D. Professor, The University of Texas Medical Branch Galveston, UTMB Cancer Research Center
“An amazingly simple concept extended into a powerful spectral region."
Tim Hossain, Ph.D.
Tim Hossain, Ph.D. Chief Scientist, Cerium Laboratories
“The VUV detector is a powerful new tool in the GC toolbox."
Kevin A. Schug, Ph.D.
Kevin A. Schug, Ph.D. Professor & Shimadzu Distinguished Professor of Analytical Chemistry, The University of Texas at Arlington