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쥐의 뇨 중에서 Pyrovalerone 의 새로운 대사체들의 여러 가지 유도체화를 통한 구조해석
신호상,박종세 ( Hosang Shin,Jongsei Park ) 생화학분자생물학회 1994 BMB Reports Vol.27 No.5
Identification of the new metabolites of pyrovalerone was described. Three new metabolites of pyrovalerone in rat urine were identified by gas chromatography-mass spectrometry (GC-MS). The structural elucidation of the metabalites was carried out by interpretation of the mass spectra of their various derivatives. Almost all of the metabolites were extracted in the acidic urine after enzyme hydrolysis and these metabolites had the carboxyl group. A metabolite was extracted as a unconjugated basic compound in the urine. The metabolites can be screened by the described extraction method.
한국인 모유 및 어패류 중 PBDEs 잔류 레벨 모니터링
장명수,차수진,강윤석,박종세,Jang, Myungsu,Cha, Sujin,Kang, Younseok,Park, Jongsei 한국분석과학회 2006 분석과학 Vol.19 No.3
Flame retardants are added to prevent catching fire and to slow down the burning process. PBDEs are known to affect thyroid hormones and hormone disruption. The aim of this study was to propose a manual for determination of PBDEs, and investigate the accumulation of PBDEs(BDE-28, 47, 99, 100, 153, 154 and 183) in fish&shellfish and human milk samples. Pre-treatment for PBDEs determination, alkali digestion and L-L(Liquid-Liquid) extraction method could be applied to fish and shellfish. When Multi-layer column was used for cleaning up the sample, 50 mL of hexane and 100 mL of hexane:dichloromethane(9:1) solutions were used for pre- and post-elution, respectively. Activated-carbon column was optimized by a 100 mL of hexane:dichloromethane(3:1). The result of fish, highest concentration was detected in flatfish, 890 pg/g(wet weight). The other side, lowest concentration was detected in pollack, 40 pg/g(wet weight). The result of breast milk, PBDEs was detected 2,580 and 3,600 pg/g(lipid weight) from breast milk of Seoul and Juju, respectively. BDE-153 and 183 were not detected in all samples. There was no difference in PBDEs level was not difference between first and second delivery. In this study, we could find that PBDEs level in Korea is lower than other countries.
Effects of Halothane Anesthesia on the Fetal Rabbit in Utero
Seung Hoon Choi(최승훈),Seok Joo Han(한석주),Myungsoo Kim(김명수),Jongsei Park(박종세),Jin Su Kim(김진수),Duk Sun Ahn(안덕선),Chul Lee(이철),Yong Won Park(박용원),Chan Ho Song(송찬호),Eui Ho Hwang(황의호) 대한외과학회 1997 Annals of Surgical Treatment and Research(ASRT) Vol.52 No.1