厚朴为木兰科植物厚朴Magnolia officinalis Rehd.et Wils.或凹叶厚朴Magnolia officinalis Rehd.et Wils.var.biloba Rehd.et Wils.的干燥干皮、根皮及枝皮。具有燥湿消痰,下气除满的功效。用于湿滞伤中,脘痞吐泻,食积气滞,腹胀便秘,痰饮喘咳~([1])。厚朴中的主要有效成分为厚朴酚Magnolo与和厚朴酚Honokiol~([2])。《中国药典2000年版一部》中厚朴的含量测定方法(下称标准方法)所用的流动相甲 Magnolia officinalis Magnolia officinalis Rehd.et Wils or dry skin, root bark and bark of Magnolia officinalis Rehd.et Wils.var.biloba Rehd.et Wils. Phlegm with dampness, under the gas addition to the full effect. For wet lax injury, swollen spit diarrhea, food qi stagnation, abdominal distension and constipation, sputum drink cough ~ ([1]). The main active ingredients in Magnolia officinalis Magnolol and Honokiol ~ ([2]). “Chinese Pharmacopoeia 2000 edition of a” Magnolia content determination method (hereinafter referred to as the standard method) used in a mobile phase