Comparison of comprehensive two-dimensional gas chromatography/time-of-flight mass spectrometry and gas chromatography–mass spectrometry for the analysis of tobacco essential oils

Zhu, Shizheng; Lü, Xin; Xing, Junpeng; Zhang, Shaowen; Kong, Hongwei; Xu, Guowang; Wu, Caiying

doi:10.1016/j.aca.2005.04.070

Cited by 34 publications

(16 citation statements)

References 20 publications

(20 reference statements)

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“…Under these conditions, the polar -apolar set showed superior capabilities in improving the peak shape, suggesting that the first column, the polar one, is more efficient in spreading the polar volatiles over a wider region. These results are in agreement with those obtained in previous studies [8,10,16,20], in which matrices containing many types of semi-and high-polar classes of compounds were better separated using a reversed-type column combination.…”

Section: Gc6gc Analysissupporting

confidence: 95%

Comparison of comprehensive two‐dimensional gas chromatography‐time‐of‐flight mass spectrometry and gas chromatography‐mass spectrometry for the qualitative characterisation of roasted barley by solid‐phase microextraction

Bianchi

Careri²,

Conti

et al. 2007

J of Separation Science

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Volatile compounds of roasted barley used in the production of barley coffee, the most common coffee substitute, were analysed by using solid-phase microextraction (SPME) followed by GC-MS and comprehensive GC x GC-TOF-MS, respectively. The optimised SPME extraction conditions in terms of selection of the fibre coating, extraction time and extraction temperature allowed to obtain the highest GC response, thus enhancing the identification capabilities of the developed method. As for the SPME-GC x GC-TOF-MS analysis, 64 compounds with similarity, reverse and probability values above 800, 900 and 6000, respectively, were identified, by using a polar x apolar column set combination; in contrast, GC-MS was able to identify a lower number of compounds, i.e. 40 volatiles.

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Section: Gc6gc Analysissupporting

confidence: 95%

Comparison of comprehensive two‐dimensional gas chromatography‐time‐of‐flight mass spectrometry and gas chromatography‐mass spectrometry for the qualitative characterisation of roasted barley by solid‐phase microextraction

Bianchi

Careri²,

Conti

et al. 2007

J of Separation Science

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“…The comprehensive GC×GC technique can significantly improve the resolution, which will lead to the co-eluting compounds to be further separated by the columns. Hence, the baseline given by the comprehensive GC×GC is more real and the measurement data based on the peak integration are more accurate [2,18].…”

Section: Discussionmentioning

confidence: 99%

“…Some analysts have conducted investigations to clear the doubts. For example, Blumberg et al [16] and Schoenmakers et al [17] have compared the analytical results and then confirmed that comprehensive GC×GC analytical capability for complex compounds is better than that from the 1D-GC; Zhu et al [18] analyzed components of tobacco essential oils by using GC×GC-TOFMS and the conventional GC-MS, respectively. The compounds were also qualitatively analyzed by GC×GC-FID.…”

mentioning

confidence: 91%

Comparison of geochemical parameters derived from comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometry and conventional gas chromatography-mass spectrometry

Wang

Weng

Zhang

et al. 2011

Sci. China Earth Sci.

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The saturated and aromatic hydrocarbon fractions of crude oil samples have been analyzed by using comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometry (GC×GC-TOFMS) and conventional gas chromatography-mass spectrometry (GC-MS). In order to investigate the consistency and discrepancy of the obtained data from the two instruments, some petroleum geochemical parameters have been compared. A comparison of 23 geochemical parameters indicates that 10 parameters are comparable from the two instruments with less than 5% deviations. Therefore, GC×GC-TOFMS is equivalent to conventional GC-MS in some geochemical parameter acquisitions. However, the other 13 parameters are discrepant, including gammacerane / -hopane, Ts/Tm, 2-ethyl-naphthalene / 1-ethyl-naphthalene (ENR), (2, 6-dimethyl-naphthalene +2,7-dimethyl-naphthalene) / 1,5-dimethyl-naphthalene (DNR), etc. Furthermore, compared to GC× GC-TOFMS, some low concentration compounds could not be detected by the conventional GC-MS, which results in the missing of related geochemical data. Normally, this is caused by the limited separation power and peak capacity of the conventional GC column. Besides, the co-eluting peak integrations are also affected significantly due to the incomplete separation of the compounds. Some low concentration compounds might not be detected because of the interference from the baseline noise or from other substances. GC×GC-TOFMS prevails in compound separation against the conventional GC-MS by avoiding co-elution, which achieves more accurate and precise peak area measurement with the presence of a true baseline. So petroleum geochemical parameters obtained from the GC×GC-TOFMS are more reliable than those from the conventional GC-MS. GC×GC-TOFMS may become one of the most effective analytical tools for the oil and gas geochemical study.comprehensive two-dimensional gas chromatography, time-of-flight mass spectrometry, gas chromatography-mass spectrometry, geochemical parameters Citation:Wang H T, Weng N, Zhang S C, et al. Comparison of geochemical parameters derived from comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometry and conventional gas chromatography-mass spectrometry.

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“…Em virtude desse resultado, a GC x GC foi aplicada na separação de compostos de outros óleos essenciais ou aromas naturais. [72][73][74][75][76][77][78] Na separação de voláteis de cachaça 79 foi relatada a possibilidade distinguir o tipo de madeira empregada no processo de envelhecimento; já para voláteis de uva 80 o perfil dos terpenos e seus derivados oxigenados pode ser empregado para traçar a origem da uva. Ainda, a separação e quantificação de alergênicos 46,47,[81][82][83] presentes em perfumes e cosméticos, bem como em óleos essenciais, também tem sido bastante investigada por GC x GC.…”

Section: Aplicações De Gc × Gcunclassified

Cromatografia gasosa bidimensional abrangente (GC × GC)

Pedroso¹,

Godoy²,

Fidélis³

et al. 2009

Quím. Nova

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Recebido em 23/11/07; aceito em 30/7/08; publicado na web em 18/12/08 COMPREHENSIVE TWO-DIMENSIONAL GAS CHROMATOGRAPHY (GC × GC). This paper presents the fundamental principles, instrumentation and selected applications of comprehensive two-dimensional gas chromatography (GC × GC). In this technique, introduced in 1991, two capillary columns are coupled and proper modulating interfaces continuously collect the eluate from the first column, transferring it to the second column. The result is a geometric increment in the chromatographic resolution, ensuring separation of extremely complex mixtures in time periods shorter or comparable to those of analysis using conventional gas chromatography and with better detectabilities and sensitivities.

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Comparison of comprehensive two-dimensional gas chromatography/time-of-flight mass spectrometry and gas chromatography–mass spectrometry for the analysis of tobacco essential oils

Cited by 34 publications

References 20 publications

Comparison of comprehensive two‐dimensional gas chromatography‐time‐of‐flight mass spectrometry and gas chromatography‐mass spectrometry for the qualitative characterisation of roasted barley by solid‐phase microextraction

Comparison of comprehensive two‐dimensional gas chromatography‐time‐of‐flight mass spectrometry and gas chromatography‐mass spectrometry for the qualitative characterisation of roasted barley by solid‐phase microextraction

Comparison of geochemical parameters derived from comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometry and conventional gas chromatography-mass spectrometry

Cromatografia gasosa bidimensional abrangente (GC × GC)

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