Determination of Dithiocarbamates in Agricultural Products Circulated in Korea

시판 농산물의 dithiocarbamates 분석

  • 김희연 (울지방식품의약품안전청) ;
  • 최희주 (식품의약품안전청) ;
  • 엄지윤 (울지방식품의약품안전청) ;
  • 서은채 (울지방식품의약품안전청) ;
  • 최승희 (울지방식품의약품안전청) ;
  • 정소영 (울지방식품의약품안전청) ;
  • 최선희 (울지방식품의약품안전청) ;
  • 이화정 (식품의약품안전청) ;
  • 최재천 (경인지방식품의약품안전청)
  • Received : 2009.03.02
  • Accepted : 2009.10.19
  • Published : 2010.02.28


To revise the dithiocarbamates residue analysis method and survey the residues in agricultural products that were treated with these fungicides in Korea, we purchased 20 types of foodstuffs (rice, potato, cabbage, apple etc.) from markets in five major cities. 236 samples of the purchased foodstuffs were then analyzed for the presence of dithiocarbamates by HPLC/UV and HPLC/APCI-MS. The $R^2$, LOD and LOQ in the range of 0.5-107.3 mg/L were as follows: DCC: y=174.34x+18.315, $R^2=0.9999$, 0.01 mg/L, and 0.04 mg/L; EBDC: y=227.38x-14.715, $R^2=1.0000$, 0.01 mg/L and 0.02 mg/L; PBDC: y=38.46x-21.412, $R^2=0.9999$, 0.04 mg/L, and 0.1 mg/L; ETU: y=52.752x-4.4819, $R^2=0.9998$, 0.02 mg/L and 0.03 mg/L; PTU: y=128.28x+4.4624, $R^2=0.9998$, 0.02 mg/L, and 0.04 mg/L. The levels of DDC, EBDC, PBDC, ETU and PTU in 20 agricultural products fortified to 10.0-107.3 mg/L ranged from 61.7-117.5%, 65.3-110.1%, 61.5-109.6%, 69.3-116.3% and 70.2-97.2%, respectively. Overall, dithiocarbamates were detected in 100 samples and the detection ratio was 42.4%. Among these, only 3 samples (1.3%) of Lycii fructus had residue levels that were above the action limits, while the remaining samples (233 samples) contained levels of dithiocarbamates below the detection limit or below the Korea MRLs (Maximum Residue Limits).


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