Analysis of volatile components of Lavandula luisieri L. by direct thermal desorption–gas chromatography–mass spectrometry

• Published in: Journal of Chromatography A Vol. 1024; no. 1; pp. 139 - 146
• Main Authors: Sanz, J., Soria, A.C., Garcı́a-Vallejo, M.C.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 23.01.2004; Elsevier
• Subjects: Applied sciences; Chemical industry and chemicals; Discriminant Analysis; Essential oils, perfumes; Exact sciences and technology; Gas Chromatography-Mass Spectrometry - methods; Lavandula - chemistry; Lavandula luisieri; Multivariate Analysis; Necrodanes; Thermal desorption; Volatile organic compounds; Volatilization; Washing products. Cosmetics and toiletries. Perfumes; Europe; Spain; Volatile organic compounds; Thermal desorption; Necrodanes; Lavandula luisieri; Terpenoid; Discriminant analysis; Flower; Chemical analysis; Coupled method; Thermodesorption; Volatile organic compound; Plant leaf; Gas chromatography; Lavandula; Thennal desorption; Labiatae; Dicotyledones; Sesquiterpenes; Angiospermae; Monoterpene; Spermatophyta; Chemical composition; Essential oil; Mass spectrometry; Chemometrics
• ISSN: 0021-9673
• DOI: 10.1016/j.chroma.2003.10.024

Volatile components of wild samples of Lavandula luisieri collected in Central and Southern Spain have been analyzed by direct thermal desorption coupled to gas chromatography–mass spectrometry (DTD–GC–MS). This method requires only 10–20 mg of dry sample, allowing to obtain qualitative and quantitative results from different plant parts such as flowers and leaves. Average volatile yield calculated from 51 individual plants was higher for leaves (9.7 mg g −1) than for flowers (2.9 mg g −1). Samples presented a high variation in their yield and composition. Major components were camphor and 1,8-cineole (up to 80.9 and 76.7% in leaves; 87.8 and 85.2% in flowers, respectively); however, these compounds were not detected in several samples. Other major component (up to 60% in flowers and leaves) was 2,3,5,5-tetramethyl-4-methylene-2-cyclopenten-1-one. Multivariate analysis was applied to quantitative data from nine selected compounds in order to show the presence of several patterns in plant composition which were only partially related to the site of collection.