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KMID : 1149220090170020053
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Korean Journal of Oriental Medical Prescription
2009 Volume.17 No. 2 p.53 ~ p.63
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Concentration of Hazardous Substances of before/after a Decoction in Prescription of Herbal Medicine -In Prescription of tonify Yang and tonify Yin -
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Seo Chang-Seob
Huang Dae-Sun
Lee Jun-Kyoung
Ha Hye-Kyung
Chun Jin-Mi
Um Young-Ran
Jang Seol
Shin Hyeun-Kyoo
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Abstract
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Objective : To compare the contents of heavy metals, residual pesticides and sulfur dioxide before/after a decoction.
Methods : The heavy metal contents before/after a decoction were measured by Inductively Coupled Plasma Atomic Emission Spectrometer (ICP-AES) and mercury analyzer. In order to analyze pesticides in 4 samples we used simultaneous multi-residue analysis of pesticides by GC/ECD, which was 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.
Results : 1. The mean values of heavy metal contents (mg/kg) for the samples were as follows: Jaeumganghwa -tang (before decoction - Pb; 1.190, Cd; 0.184, As; 0.099 and Hg; 0.028, after decoction - Pb; 0.033, Cd; 0.003, As; 0.005 and Hg; 0.001), Yukmijiwhang-tang (before decoction - Pb; 0.484, Cd; 0.133, As; 0.053 and Hg; 0.009, after decoction - Pb; 0.065, Cd; 0.008, As; 0.007 and Hg; not detected), Bojungikgi-tang (before decoction - Pb; 0.863, Cd; 0.197, As; below 0.016 and Hg; 0.011, after decoction - Pb; 0.071, Cd; 0.009, As; 0.004 and Hg; 0.001) and Ssangwha-tang (before decoction - Pb; 1.511, Cd; 0.212, As; 0.094 and Hg; 0.016, after decoction - Pb; 0.029, Cd; 0.006, As; 0.005 and Hg; 0.0004). 2. Contents (mg/kg) of sulfur dioxide (SO2) before a decoction in Jaeumganghwa-tang, Yukmijiwhang -tang and Ssangwha-tang exhibited 22.7, 107.3 and 5.5, respectively. However, contents of sulfur dioxide after a decoction in all samples were not detected. 3. Contents (mg/kg) of residual pesticides before/after a decoction in all samples were not detected.
Conclusion : 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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