Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Barbara H. Reitsma"'
Autor:
Edward S. Yeung, Clifford G. Venier, Donald R. Bobbitt, Tetsuo Aida, Ann Rougvie, Barbara H. Reitsma, Barbara F. Smith, Thomas G. Squires, Y.Y. Chen
Publikováno v:
Fuel. 64:114-118
Extracts from various coals and coal-derived products were studied using liquid chromatography with optical activity detection. The chromatograms show that there are substantial numbers of optically active components in these samples. Since both dext
Autor:
S. S. Kim, Robert A. Jacobson, Edward S. Yeung, A. Takaya, Barbara H. Reitsma, John G. Verkade, Jon Applequist, R. Honzatko, Andrzej E. Wroblewski
Publikováno v:
Journal of the American Chemical Society. 110:4144-4150
Syntheses are described for three rigid (/minus/)-1-R-2,7,8-trioxabicyclo(3.2.1)octanes (R = H, 1; R = Me, 2; R = Ph, 3) in high enantiomeric purity. The crystal and molecular structure of (/minus/)-3 was determined by X-ray means. A crystal of (/min
Autor:
Edward S. Yeung, Barbara H. Reitsma
Publikováno v:
Journal of Chromatography A. 362:353-362
Two dual detector systems were studied for the determination of enantiomeric ratios of amino acids without chiral separation. Detection limits of 50 ng to 2 μg were observed for the four amino acids studied. These improvements are possible by using
Autor:
Barbara H. Reitsma, Edward S. Yeung
Publikováno v:
Journal of Chromatography A. 405:295-303
The high-performance liquid chromatography of soybean trypsin inhibitor is re-examined by using simultaneous optical activity and ultraviolet absorption detection. Ratio plots of the two detector responses allow easy identification of impurities that
Autor:
S. S. Kim, Andrzej E. Wroblewski, A. Takaya, R. Honzatko, Barbara H. Reitsma, Edward S. Yeung, John G. Verkade, Jon Applequist, Robert A. Jacobson
Publikováno v:
ChemInform. 19
Syntheses are described for three rigid (/minus/)-1-R-2,7,8-trioxabicyclo(3.2.1)octanes (R = H, 1; R = Me, 2; R = Ph, 3) in high enantiomeric purity. The crystal and molecular structure of (/minus/)-3 was determined by X-ray means. A crystal of (/min