Compounds of the formula
wherein F is a fluorescing compound; Y is -NH- or a single covalent bond; Z is a straight or branched alkylene chain of 2 to 10 carbon atoms which is substituted by at least one hydrophilic group; Q is oxygen or sulfur; and X is a ligand-analog, the ligand-analog capable of being recognized by an antibody specific to the corresponding ligand. These compounds have improved properties in fluorescence polarization immunoassays by possessing either a better intensity and/or a larger span.
式中的化合物
其中 F 是荧光化合物;Y 是-NH-或单个共价键;Z 是 2 至 10 个碳原子的直链或支链亚烷基链,至少被一个亲
水基团取代;Q 是氧或
硫;X 是
配体类似物,
配体类似物能够被相应
配体的特异性
抗体识别。这些化合物具有更好的强度和/或更大的跨度,从而改善了荧光偏振免疫分析的性能。