Elemental Analysis in Astragali Radix by Using ICP-AES and Determination of the Original Agricultural Place of Oriental Medicine by Using a Chemometrics

ICP-AES를 이용한 황기 속에 함유된 원소의 성분 분석과 Chemometrics를 이용한 한약재의 원산지 규명

  • Received : 2001.06.11
  • Published : 2001.08.25

Abstract

We have investigated the trace amount in an oriental medicine in oder to determine the geographical origin by using inductively coupled plasma-atomic emission spectrometry(ICP-AES) and chemometric anlysis with principal component analysis(PCA) and pattern recognition. Astragali Radix from several agricultural places in Korea was selected as an example of the oriental medicine and analyzed by ICP-AES. The dried Astragali Radix sample was treated with $HNO_3$ and $H_2O_2$, then digested using microwave oven. Elements such as Mg, Al, K, Ca, Ti, Mn, Fe, Cu, Zn, and Ba with different concentrations were found an used for the identification of the origin of agriculture places. Especially, the concentration of Al, Fe, Zn and Ti were employed to investigate the relationship between. Astragali Radix and the agricultural places by PCA and pattern recognition. We have made a program that is based on chemometrics in analytical spectroscopy. The results of the chemometrics analysis indicated that a distinction among Yechon and Chechon, Chungson, Kurye and Chinese Astragali Radix could be made. We believe that principal component analysis(PCA) and pattern recognition is a valuable tool to identify the origin of Astragali Radix in terms of the agricultural place.

Keywords

ICP-AES;chemometrics;astragali radix;oriental medicine

Acknowledgement

Supported by : 보건복지부