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KMID : 0878220090210010237
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Journal of Sasang Constitutional Medicine
2009 Volume.21 No. 1 p.237 ~ p.246
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Concentration of Heavy Metals, Residual Pesticides and Sulfur Dioxide of before/after Decoction
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Seo Chang-Seob
Huang Dae-Sun
Lee Jun-Kyoung
Ha Hye-Kyeong
Chun Jin-Mi
Um Young-Ran
Jang Seol
Kim Jong-Yeol
Lee Si-Woo
Shin Hyeun-Kyoo
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Abstract
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1. Objectives: To compare the contents of heavy metals, residual pesticides and sulfur dioxide before/after decoction.
2. Methods: The heavy metal contents before/after decoction were measured by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES) and mercury analyzer. In order to analyze pesticides in 3 samples we used simultaneous multi-residue analysis of pesticides by GC/ECD, followed by GC/MSD analysis to confirm the identity of the detected pesticide in each sample. In addition, the contents of sulfur dioxide (SO2) were performed by Monier-Williams distillation method.
3. Results: 1) The mean values of heavy metal contents (mg/kg) for the samples were as follows: Yuldahanso-tang (before decoction - Pb; 1.85, Cd; 0.148, As; 0.042 and Hg; 0.003, after decoction - Pb; 0.096, Cd; 0.006, As; 0.006 and Hg; 0.002), Chongsimyonja-tang (before decoction - Pb; 1.193, Cd; 0.094, As; 0.084 and Hg; 0.008, after decoction - Pb; 0.053, Cd; 0.007, As; 0.011 and Hg; not detected) and Taeyeumjowee-tang (before decoction - Pb; 0.878, Cd; 0.078, As; 0.302 and Hg; 0.004, after decoction - Pb; 0.079, Cd; 0.005, As; 0.006 and Hg; not dectcted). 2) Contents (mg/kg) of residual pesticides before/after decoction in all samples were not detected. 3) Contents (mg/kg) of sulfur dioxide (SO2) before decoction in Yuldahanso-tang, Chongsimyonja-tang and Taeyeumjowee-tang exhibited 6.1, 37.8, 31.5 and 19.7, respectively. However, contents of sulfur dioxide after decoction in all samples were not detected.
4. Conclusions: These results will be used to establish a criterion of heavy metals, residual pesticides and sulfur dioxide
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KEYWORD
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Herbal medicine, heavy metal, pesticide, sulfur dioxide
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