Headspace-solid phase microextraction coupled to gas chromatography–combustion-isotope ratio mass spectrometer and to enantioselective gas chromatography for strawberry flavoured food quality control

2011 ◽  
Vol 1218 (42) ◽  
pp. 7481-7486 ◽  
Author(s):  
Luisa Schipilliti ◽  
Paola Dugo ◽  
Ivana Bonaccorsi ◽  
Luigi Mondello
Keyword(s):  
Gas Chromatography ◽  
Quality Control ◽  
Mass Spectrometer ◽  
Food Quality ◽  
Isotope Ratio ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Food Quality Control ◽  
Enantioselective Gas Chromatography ◽  
Isotope Ratio Mass Spectrometer

scholarly journals A STUDY ON CARBON ISOTOPE OF CO2 AND CH4 IN WESTERN DIENG PLATEU BY GAS CHROMATOGRAPHY- ISOTOPE RATIO MASS SPECTROMETER (GC-IRMS)

2010 ◽  
Vol 5 (1) ◽  
pp. 11-14
Author(s):  
Hanik Humaida
Keyword(s):  
Gas Chromatography ◽  
Carbon Isotope ◽  
Mass Spectrometer ◽  
Isotope Ratio ◽  
Isotope Analysis ◽  
Ionization Detector ◽  
Volcanic Gas ◽  
Porapak Q ◽  
Flame Ionization ◽  
Isotope Ratio Mass Spectrometer

The carbon isotope can be used to evaluate volcanism phenomenon of volcano. The study of carbon isotope of CO2 and CH4 was carried out in western Dieng Plateau by mass-spectrometer. Before analysis, sampel was separated by gas chromatography using a Porapak-Q column and a FID (Flame Ionization Detector) detector. The gas was oxidized by copper oxide at 850oC before being ionized in mass-spectrometer for isotope analysis. The CO2 content in Candradimuka crater (-4.10 O/OO), indicated that the gas may be as volcanic gas. The other CO2 from Sumber and western Gua Jimat, had isotope value  of -10.05 and -12.07 O/OO, respectively, indicating contamination from crustal and subduction material. The carbon isotope of CH4 gas from Pancasan village was -63.42 O/OO, that may be categorized as biogenic gas.   Keywords: isotope, CO2, CH4, Dieng.

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