Analytical Science and Technology (분석과학)

The Korean Society of Analytical Sciences (한국분석과학회)
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Levels of sulfonamides for animals in food

식품 중 설폰아마이드계 동물용의약품의 잔류실태

  • Jeong, Jiyoon (Residue & Chemicals Team, Korea Food & Drug Administration) ;
  • Hong, Mooki (Residue & Chemicals Team, Korea Food & Drug Administration) ;
  • Choi, Dongmi (New Hazard Chemicals Team, Korea Food & Drug Administration)
  • 정지윤 (식품의약품안전청, 잔류화학물질팀) ;
  • 홍무기 (식품의약품안전청, 잔류화학물질팀) ;
  • 최동미 (식품의약품안전청, 신종유해물질팀)
  • Received : 2006.03.03
  • Accepted : 2007.02.12
  • Published : 2007.02.28
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Abstract

To determine levels of 11 sulfonamides for animals in food, simultaneously, a selective method of high performance liquid chromatography with UV detector has been applied. The targets were sulfachlorpyridazine (SCP), sulfadiazine (SDZ), sulfadimethoxine (SDM), sulfisoxazole (SSX), sulfamerazine (SMZ), sulfamethazine (SMT), sulfamethoxazole (SMX), sulfamethoxypyridazine (SMP), sulfamonomethoxine (SMM), sulfaquinoxaline (SQX) and sulfathiazole (STZ). Food samples were beef, pork, chicken, milk and whole egg that were collected at the main 6 cities in Korea as Seoul, Busan, Daejon, Incheon, Mokpo and Gangneung. After homogenizing food samples with sodium phosphate solution and acetonitrile, it was extracted with n-hexane. The mobile phase gradient was a mixture of 5 mM potassium phosphate (pH 3.25) and methanol with a gradient ratio from 100:0 to 30:70. The UV wavelength was 270 nm. The overall recoveries were ranged from 75% to 95% and the limit of detection was minimum 0.004 mg/kg for SMT, and 0.007 mg/kg for STZ at signal/noise > 3, respectively. As results, sulfonamide drugs were not detected in most of the selected food samples, however, sulfamonomethoxine was detected in meat. The determined level of sulfamonomethoxine were 0.03 and 0.06 mg/kg for beef that were below the MRLs.

식품중 설폰아마이드계 동물용의약품 11종을 분석하기 위하여 고속액체크로마토그라피를 이용하여 동시분석을 시도하였다. 대상물질은 설파클로로피리다진(SCP), 설파디아진(SDZ), 설파디메톡신(SDM), 설피속사졸(SSX), 설파메라진(SMZ), 설파메타진(SMT), 설파메톡사졸(SMX), 설파메톡시피리다진(SMP), 설파모노메톡신(SMM), 설파퀴녹살린(SQX) 및 설파치아졸(STZ)이었다. 대상식품은 축산식품인 소고기, 돼지고기, 닭고기, 우유 및 계란 5품목이었으며, 전국 6대도시인 서울, 부산, 대전, 인천, 목포, 강릉에서 수집하였다. 시료에 인산나트륨 및 아세토니트릴을 가하여 균질화한 후 핵산을 가하여 추출하고 고속액체크로마토그라피로 분석하였다. 이동상으로는 5 mM 제1인산칼륨용액(pH 3.25)과 메탄올의 혼합용액을 100:0에서 30:70까지 그래디언트로 사용하였으며 UV의 검출파장은 270 nm이었다. 평균 회수율은 75~95%이었으며, 검출한계는 신호대 잡음비 3 이상에서 대상물질에 따라 최저 SMT 0.004에서 최고 STZ 0.007 mg/kg로 나타났다. 대부분의 시료에서 설폰아미이드계 동물용의약품은 검출되지 않았으나, 소고기(2시료)에서 설파모노메톡신이 각각 0.03, 0.06 mg/kg 수준으로 검출되었으며 잔류허용기준 이하로 평가되었다.

Keywords

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