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메틸 5-히드록시 디나프로[1, 2-2'', 3'']푸란-7, 12 디온 6-카복시레이트의 미량분석
박유미(You Mie Park),장혜선(Hae Seon Jang),강경환(Kyoung Hwan Kang),김경님(Kyung Nim Kim),장성기(Seong Ki Jang),김박광(Bak Kwang Kim) 대한약학회 1993 약학회지 Vol.37 No.3
UV and high performance liquid chromatographic methods for the quantitative analysis of methyl 5-hydroxy-dinaphtho [1, 2-2'', 3''] furan-7,12-dione-6-carboxylate(MHDDC) in urine and blood were developed. The correlation coefficients of the calibration curves of MHDDC in chloroform, methanol and dioxane solution were 0.999, 0.997 and 0.998, respectively. MHDDC was resolved within 15 min and had a detection limit of 2~5ng at S/N 3 by using a reversed-phase column with two solvents (MeOH, HAc).
메틸 5-하이드록시 디나프로 [1,2-2'',3''] 후란-7,12 디온 6-카복시레이트의 물성 및 변색기전
장혜선(Hae Seon Jang),박유미(You Mie Park),강경환(Kyoung Hwan Kang),우영아(Young Ah Woo),박정일(Jeong Hill Park),김박광(Bak Kwang Kim) 대한약학회 1993 약학회지 Vol.37 No.2
Physico-chemical properties of methyl 5-hydroxy-dinaphtho[1,2-2'',3''] furan-7, 12-dione-6-carboxylate(MHDDC) were examined. The yellowish color of the solution at pH 8 below changes to a bluish color when the solution is basified to pH 10 above. This color change was presumed to a change of the molecular structure from a quinoid-type to a quinoid-type with the dissociation to the hydroxyl group as shown in chart 1.
참오동나무 줄기의 성분연구(II)-새로운 furanquinone계 화합물의 합성-
장성기(Seong Ki Jang),박유미(You Mie Park),김연수(Yeon Soo Kim),강경환(Kyung Hwan Kang),김양숙(Yang Suk Kim),김박광(Bak Kwang Kim) 대한약학회 1991 약학회지 Vol.35 No.6
A furanquinone substance(methyl 5-hydroxy-dinaphtho [1,2-2'',3''] furan-7,12-dione-6-carboxylate) which has been isolated from the methanol extract of Paulownia tomentosa stem was synthesized by condensing 2,3-dichloro-1,4-naphthoquinone with methyl 1,4-dihydroxy-naphthalene-2-carboxylate in pyridine and identified by NMR, MS, UV, IR etc.
이종숙(Jong Suk Lee),김박광(Bak Kwang Kim),장성기(Seong Ki Jang),박유미(You Mie Park),문동철(Dong Cheul Moon),염정록(Jeong Rok Youm) 대한약학회 1989 약학회지 Vol.33 No.5
Binding parameters of some edible dyes with bovine serum albumin were determined at pH 7.4 buffer solution. The edible dyes used were fast green, brilliant blue FCF, indigo carmine and allura red AC, and the final concentrations of each dyes were 3~9X10-6M, 6X10-6M, 3X10-5M and 3X10-5M, respectively. The final concentrations of bovine serum albumin were 1~7X10-5M. The values of binding free energy between edible dye and protein were ranged from -6,024 to -6,800cal/mole.