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정지헌 ( Ji Hun Jung ),황래홍 ( Lae Hwong Hwang ),윤은선 ( En Sun Yun ),김현정 ( Hyun Jung Kim ),한인규 ( In Kyou Han ) 한국가축위생학회 1999 韓國家畜衛生學會誌 Vol.22 No.1
This study was performed to investigate the contents of the heavy metals such as cadmium(Cd), copper(Cu), iron(Fe), lead(Pb) and zinc(Zn) in meat and meat products. For this experiment, each 20 samples of beef and pork were collected at slaughterhouse in Seoul areas and 45 samples of meat products(ham, sausage, processed meat and seasoned meat) were purchased from commercial food markets. The contents of the heavy metals was determined by atomic absorption spectrophotometry from Jan. to Nov. in 1998. The results obtained were summarized as follows 1. In Korean native beef, mean values of the heavy metals(mg/kg) were Pb: 0.14±0.10, Cd: 0.07±0.02, Cu: 1.73±0.95, Zn: 42.82±8.17 and Fe: 67.43±24.18, respectively. 2. In imported beef, mean values of the heavy metals(mg/kg) were Pb: 0.03±0.08, Cd: 0.06±0.02, Cu: 1.41±0.62, Zn: 42.93± 4.95 and Fe: 40.06± 12.77, respectively. 3. In pork, mean values of the heavy metals(mg/kg) were Pb: not detected, Cd: 0.09±0.02, Cu: 1.08±0.23, Zn: 19.49±6.02 and Fe: 30.21±10.51, respectively. 4. In ham, mean values of the heavy metals(mg/kg) were Pb: trace, Cd: trace, Cu:1.19± 0.46, Zn: 13.58±4.99 and Fe: 31.43±11.74, respectively. 5. In sausage, mean values of the heavy metals(mg/kg) were Pb: 0.15±0.34, Cd: 0.08±0.05, Cu: 1.15±0.46, Zn: 13.70±7.13 and Fe: 27.28±15.05, respectively. 6. In processed meat, mean values of the heavy metals(mg/kg) were Pb: 0.08±0.13, Cd: 0.09±0.04, Cu: 1.28±0.60, Zn: 14.72±7.09 and Fe: 24.04±10.33, respectively. 7. In seasoned meat, mean values of the heavy metals(mg/kg) were Pb:1.05±2.21, Cd: 0.13 ±0.03, Cu: 1.06± 0.16, Zn: 17.53± 8.72 and Fe: 26.76± 9.02, respectively.
HPLC를 이용한 축산물중 잔류페니실린 및 클로람페니콜의 동시분석법 연구
황래홍 ( Lae Hwong Hwang ),윤은선 ( En Sun Yun ),김현정 ( Hyun Jung Kim ),김연주 ( Yoen Joo Kim ),정형기 ( Hyeoung Ki Jung ),한인규 ( In Kyou Han ),이병동 ( Byung Dong Lee ) 한국가축위생학회 2000 韓國家畜衛生學會誌 Vol.23 No.1
This study was carried out to simultaneous determination of penicillin G and chloramphenicol in livestock products by HPLC. The results abstained were as follows 1. Penicillin G and chloramphenicol were analyzed by HPLC on symmetry C18 column with acetonitrile-0.1 M phosphate buffer containing 0.0157 M thiosulfate (25: 75) as mobile phase at UV 325nm and 280nm, respectively. 2. Samples were applied to a Sep-pak Cig cartridge, from which eluted penicillin derivatized with 2 M 1,2,4-triazole containing 0.001 M mercuric chloride. 3. The average recovery rates of penicillin G and chloramphenicol were 81.8% and 80.3%, respectively, and the detection limits were 5 ppb (5tg/kg: 7.91U/kg) for penicillin G and chloramphenicol in porcine and bovine muscle.