The invention provides a method of determining the amount of an analyte having an oxidation potential, for a one electron oxidation process, of about +0.10 to about +1.20 volts at pH 7, relative to the normal hydrogen electrode at 298K, said method comprising measuring the emission intensity or emission lifetime, at two or more wavelengths, from a sample comprising said analyte and two or more different macrocyclic lanthanide (III) complexes, wherein each of said macrocyclic lanthanide (III) complexes comprises a different lanthanide ion but the same macrocyclic ligand, and using a ratio of emission intensities or emission lifetimes measured at two different wavelengths to calculate the amount of analyte in said sample.
本发明提供了一种测定具有氧化电位的分析物的方法,该氧化电位为在pH 7和298K下相对于标准氢电极约为+0.10至+1.20伏特的一电子氧化过程,所述方法包括测量样品中所含有的所述分析物和两种或更多种不同的大环配位
镧系(III)络合物的发射强度或发射寿命,在两个或更多个波长处,其中每种所述大环配位
镧系(III)络合物包括不同的
镧系离子但相同的大环
配体,并使用在两个不同波长处测量的发射强度或发射寿命的比来计算样品中所含有的分析物的量。