Related Experiment Video
Updated: Jul 11, 2026

Rapid Collection of Floral Fragrance Volatiles using a Headspace Volatile Collection Technique for GC-MS Thermal Desorption Sampling
Published on: December 10, 2019
Analysis of frankincense in archaeological samples by gas chromatography-mass spectrometry
Carole Mathe1, Jacques Connan, Paul Archier
1Université d'Avignon et des pays de Vaucluse Laboratoire de Chimie Bioorganique, 33 rue Louis Pasteur F-84000 Avignon. carole.mathe@univ-avignon.fr
Abstract:
Four archaeological samples, unearthed from Qana in Yemen were analysed by analytical technique, currently applied in the field of petroleum geochemistry, and by gas chromatography coupled with a mass spectrometer (GC-MS). Sample no 1286 comes from a burned warehouse and samples no 964, 963 and 962 from the central sanctuary. These specimens were probably exposed to a heating source. In each case olibanum resin was identified according to the presence of their chemical markers corresponding to alpha- , beta-boswellic and lupeolic acids (3alpha-hydroxy-olean-12-en-24-oic, 3alpha-hydroxy-urs-12-en-24-oic and 3alpha-hydroxy-lup-20(29)en-24-oic acids) and their respective O-acetyled derivatives (3alpha- O-acetyl-olean-12-en-24-oic, 3alpha-O-acetyl-urs-12-en-24-oic and 3-O-acetyl-lup-20(29)-en-24-oic acids). Concerning the thermal degradation state of samples, the GC-MS results are in agreement with the geochemical ones. Sample no 1286 and 964 correspond to ageing incense which has not undergone any heating action and are consequently relatively well preserved. Lastly, samples no 963 and 962 are thermally degraded resins and their gross composition data permits to conclude that sample no 963 is only partially burnt while sample no 962 has been much more degraded.
Related Concept Videos
Gas Chromatography–Mass Spectrometry (GC–MS)
A gas chromatograph consists of a long, narrow capillary column with a polysiloxane coating on the inner wall. The coating...
Gas Chromatography: Introduction
In GC, a sample is vaporized and mixed with an inert carrier gas (the mobile phase), which transports it through a column.
Mass Spectrometry: Complex Analysis
GC–MS is a powerful hyphenated method commonly used in forensics and environmental...
Mass Spectrometry: Branched Alkane Fragmentation
Mass Spectrometry: Aromatic Compound Fragmentation
Mass Spectrometry: Cycloalkane Fragmentation
For example, cyclohexane molecular ions have a mass-to-charge ratio (m/z) of 84, which tends to produce a stronger signal than linear alkanes like hexane. This stability comes from...

