Solid phase microextraction of volatile organic compounds released from leaves, roots and gum of Astragalus microcephalus Willd., followed by GC and GC/MS analysis

Dj. Djozan, A. Movafeghi, J. A. Razeghi and T. Baheri

Natural Product Research Part A 22 ( 18 ): 1660 - 1669 , 2008