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Headspace single‐drop microextraction of herbal essential oils
Author(s) -
Adam Martin,
Dobiáš Petr,
Eisner Aleš,
Ventura Karel
Publication year - 2008
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.200700377
Subject(s) - chromatography , repeatability , chemistry , essential oil , gas chromatography , drop (telecommunication) , gas chromatography–mass spectrometry , solid phase microextraction , mass spectrometry , telecommunications , computer science
A method employing the headspace single‐drop microextraction (HS‐SDME) is presented for the determination of essential oils in dried herbal leaves. By optimising the key experimental parameters, a linear response for the individual target compounds was obtained in the concentration range from LOQ to 4 mg/mL ( r 2 = 0.9912–0.9998), with LODs from 3.3 up to 20.5 μg per 100 g of dried leaves, and the repeatability within the RSD of 2.1–8.9%. The HS‐SDME‐based procedure, enabling a rapid and simple analysis of essential oils in herbs, was applied to selected real samples (nine essential oils in four different samples) in combination with GC‐FID identification and quantification of the target volatiles.