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    • 10. 发明申请
    • Determining Enantiomeric Excess Using Indicator-Displacement Assays
    • 使用指示剂位移测定法确定对映异构体过量
    • US20070292968A1
    • 2007-12-20
    • US11839085
    • 2007-08-15
    • Eric AnslynJ. Frantz-Folmer-AndersenLei Zhu
    • Eric AnslynJ. Frantz-Folmer-AndersenLei Zhu
    • G01N21/00G01N33/00
    • G01N33/542
    • The invention includes an enantioselective indicator-displacement assay useful to determine enantiomeric excess (ee) enantiomeric samples calorimetrically. Determination may be by inspection of color with the naked eye, spectrographic measurement, or mathematical calculation. Concentration may also be determined. The assay may involve two independent absorption measurements. On suitable group of enantiomeric molecules to be assayed include α-hydroxyacids. The inherent relationship between the absorbance of the indicator-displacement ensemble and the overall concentration and ee of the analyte is established through solution equilibria. The invention also includes use of the assay in drug screening and manufacturing, high throughput screening of catalysts and kits for use in conducting assays of the invention.
    • 本发明包括用于量热测定对映体过量(ee)对映异构体样品的对映选择性指示剂置换测定法。 确定可以通过肉眼检查颜色,光谱测量或数学计算。 也可以确定浓度。 该测定可以涉及两次独立的吸收测量。 待分析的对映异构体分子的合适组包括α-羟基酸。 通过溶液平衡建立指示剂置换组合的吸光度与分析物的总浓度和ee之间的固有关系。 本发明还包括在药物筛选和制造中使用该测定法,用于进行本发明测定的催化剂和试剂盒的高通量筛选。