GSO ISO 7358:2015

ISO 7358:2002

Gulf Standard Current Edition · Approved on 03 September 2015

Oils of bergamot, lemon, citron and lime, fully or partially reduced in bergapten -- Determination of bergapten content by high-pressure liquid chromatography (HPLC)

GSO ISO 7358:2015 Files

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GSO ISO 7358:2015 Scope

This International Standard specifies a high-pressure liquid chromatographic (HPLC) method, using either an internal standard or external standard, for the determination of the bergapten content in oil of bergamot [Citrus aurantium ssp. bergamia (Risso et Poit.) Wight et Arn. ex Engl.], in oil of lemon [Citrus limon (L.) Burm. f.], in oil of citron (Citrus bigaradia Risso), and in oil of lime [Citrus aurantifolia (Christm.) Swingle and Citrus latifolia Tanaka], all of them fully or partially reduced in bergapten. For essential oils having a bergapten content greater than or equal to a mass fraction of 0,001 %, the internal standard method is applicable. For essential oils having a bergapten content between a mass fraction of 0,000 1 % and 0,001 %, the external standard method is applicable.