Food & Beverage Safety
Food and beverage manufacturers regularly test for process and quality control, screening of adulteration, identification of origin, quantification of additives, as well as general flavor and palatability using gas chromatography. Driven by the need for health and nutritional safety, national and international regulations also require that food and beverage manufacturers screen their products for contaminates such as pesticides, environmental pollutants, toxins (either from spoilage or micro-organisms), veterinary drugs, and possible packaging material leaching.
Known advantages of VUV Spectroscopy
- Class identification for simplified and more accurate analysis of MOSH / MOAH fractions
- Isomeric analysis ranging from cis- and trans-fatty acid analysis to complete lipid profiling
- Faster and more automated vegetable and seed oil screening
- Broad component screening of tobacco deeming analytes in e-cigarettes
- Reduces test methods needed for characterization and allows for chromatographic compression
Solving Analytical Challenges in Food & Beverage Safety
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
The vacuum ultraviolet (VUV) spectrophotometer was developed recently as an alternative to existing gas chromatography detectors. This detector measures the absorption of gas-phase chemical species in the range of 120–240 nm, where all chemical compounds present unique absorption spectra.
Rapid Profiling and Authentication of Vanilla Extracts Using Gas Chromatography-Vacuum Ultraviolet Spectroscopy
In this work, gas chromatography-vacuum ultraviolet spectroscopy (GC-VUV) was used for the determination of natural and artificial flavoring compounds in vanilla extract samples.
Finding VUV’s “Killer Application”Cary Anne Simpson
Cary Anne Simpson
Earlier this year my general practitioner measured my height at my regular check-up. What-the-heck? I’m used to my kids standing under the ruler annually, but I haven’t done that in…well, never mind. It doesn’t matter how long it has been since I stopped growing. I, of course, asked why I was being measured and was...
“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