Determination of Heavy Metal Contents in Oriental Medical Materials and the Effect of Washing

한약재내 중금속 함량분석 및 물세척 효과

  • Published : 2003.04.01

Abstract

Six heavy metals (lead, copper, cadmium, chromium, mercury and arsenic) were analyzed in 9 oriental medical materials(Paeoniae Radix Alba, Zizyphi Fructus, Cnidii Rhizoma, Rehmanniae Radix Preparata, Angelicae Gigantis Radix, Astragali Radix, Glycyrrhizae Radix, Cinnamomi Cortex Spissus, and Zingiberis Rhizoma Crudus) by inductively coupled plasma atomic emission spectrometry (ICP-AES). The heavy metal contents of Zingberis Rhizoma Crudus and Angelicae Gigantis Radix were 44.0 and 37.3 mg/kg, respectively, which were 1.47 and 1.24 times higher than the guideline set by the Korean Food and Drug Administration (KFDA). Washing with deionized water lowered the heavy metal contents by 20-38%, and reduced levels to below the guidelines set by KFDA.

쌍화탕의 재료로 사용되는 9가지 한약재에 함유된 6가지 인체에 유해한 중금속 함유량은 생강과 당귀의 경우 식약청 기준치인 30ppm의 1.47배와 1.24배 이었고 기타 한약재는 기준치와 거의 동등하거나5% 이내에서 초과하였다. 가장 간단한 수치법인 물세 척 만으로 중금속이 20-38% 제거되었고 따라서 모든 실험 대상 약재 에 대하여 중금속 함량을 식약청 기준치보다 낮출 수 있었다.

Keywords

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