Capillary gas chromatographic analysis with the far-UV absorbance detector

Driscoll, John S.; Duffy, Michael; Pappas, S.

doi:10.1016/s0021-9673(01)84654-9

Cited by 16 publications

(10 citation statements)

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“…High energy electronic transitions (e.g., → *, n → *, and → *) are probed by absorption of light by bonded and nonbonded electrons in this region. Bench top analytical measurements in this wavelength range have only been a recent development, due to a lack of convenient light sources that emit continuous and high intensity radiation, and detectors that generate linear signal responses in the VUV region [12][13][14][15][16]. Previous VUV absorption spectral measurements were restricted to synchrotron facilities [17][18][19][20].…”

Section: Theory and Vuv Detector Hardwarementioning

confidence: 99%

“…Previous VUV absorption spectral measurements were restricted to synchrotron facilities [17][18][19][20]. In other cases, where ultraviolet absorption detectors for gas chromatography were demonstrated in the past, the measurements were limited to a single wavelength [14] (no qualitative information) or a wavelength range above 168 nm with limited signal-to-noise performance at short wavelengths [15,16].…”

Section: Theory and Vuv Detector Hardwarementioning

confidence: 99%

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Gas chromatography–vacuum ultraviolet spectroscopy for multiclass pesticide identification

Fan

Smuts

Walsh

et al. 2015

Journal of Chromatography A

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Section: Theory and Vuv Detector Hardwarementioning

confidence: 99%

Section: Theory and Vuv Detector Hardwarementioning

confidence: 99%

Gas chromatography–vacuum ultraviolet spectroscopy for multiclass pesticide identification

Fan

Smuts

Walsh

et al. 2015

Journal of Chromatography A

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“…These alluring factors motivate the use of VUV-absorption techniques for complex matrixes. The first VUV-absorption detection systems applied for GC were limited to a narrow band of vacuum-UV radiation, or even only to single wavelengths, which resulted in no qualitative information. , Consequently, a simultaneous VUV-absorption spectrometer was introduced by Lagesson et al , in 1998 providing quantitative and qualitative analysis with good detection, classification, and identification limits in the wavelengths range between 168 and 330 nm.…”

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confidence: 99%

A Vacuum Ultraviolet Absorption Array Spectrometer as a Selective Detector for Comprehensive Two-Dimensional Gas Chromatography: Concept and First Results

et al. 2016

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Fast and selective detectors are very interesting for comprehensive two-dimensional gas chromatography (GC × GC). This is particularly true if the detector system can provide additional spectroscopic information on the compound structure and/or functionality. Other than mass spectrometry (MS), only optical spectroscopic detectors are able to provide selective spectral information. However, until present the application of optical spectroscopy technologies as universal detectors for GC × GC has been restricted mainly due to physical limitations such as insufficient acquisition speed or high detection limits. A recently developed simultaneous-detection spectrometer working in the vacuum ultraviolet (VUV) region of 125-240 nm overcomes these limitations and meets all the criteria of a universal detector for GC × GC. Peak shape and chromatographic resolution is preserved and unique spectral information, complementary to mass spectrometry data, is gained. The power of this detector is quickly recognized as it has the ability to discriminate between isomeric compounds or difficult to separate structurally related isobaric species; thus, it provides additional selectivity. A further promising feature of this detector is the data analysis concept of spectral filtering, which is accomplished by targeting special electronic transitions that allows for a fast screening of GC × GC chromatograms for designated compound classes.

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“…Likewise, UV spectroscopy has rarely been used as GC detector; the number of GC amenable compounds that absorb light appreciably in the UV range is limited. The first applications of vacuum ultraviolet (VUV) spectroscopy were limited to single wavelengths . Subsequently, a broadband VUV/UV spectrometer was introduced by Lagesson and co‐workers that provided quantitative and qualitative analysis in the wavelength range between 168 and 330 nm.…”

Section: Introductionmentioning

confidence: 99%

Recent advances and applications of gas chromatography vacuum ultraviolet spectroscopy

Santos

Schug

2016

J of Separation Science

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The vacuum ultraviolet 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. Therefore, qualitative analysis can be performed and quantification follows standard Beer-Lambert law principles. Different fields of application, such as petrochemical, food, and environmental analysis have been explored. Commonly demonstrated is the capability for facile deconvolution of co-eluting analytes. The concept of additive absorption for co-eluting analytes has also been advanced for classification and speciation of complex mixtures using a data treatment procedure termed time interval deconvolution. Furthermore, pseudo-absolute quantitation can be performed for system diagnosis, as well as potentially calibrationless quantitation. In this manuscript an overview of these features, the vacuum ultraviolet spectrophotometer instrumentation, and performance capabilities are given. A discussion of the applications of the vacuum ultraviolet detector is provided by describing and discussing the papers published thus far since 2014.

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Capillary gas chromatographic analysis with the far-UV absorbance detector

Cited by 16 publications

References 1 publication

Gas chromatography–vacuum ultraviolet spectroscopy for multiclass pesticide identification

Gas chromatography–vacuum ultraviolet spectroscopy for multiclass pesticide identification

A Vacuum Ultraviolet Absorption Array Spectrometer as a Selective Detector for Comprehensive Two-Dimensional Gas Chromatography: Concept and First Results

Recent advances and applications of gas chromatography vacuum ultraviolet spectroscopy

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