A new sensitive fluorimetry method for the simple and rapid measurement of aluminum in some food samples, which used 3',6'-bis(diethylamino)-2-{[(1E)-(4-ethoxyphenyl) methylene] amino}spiro[isoindole-1,9'-xanthen]-3(2H)-one (DEMAX) for Al(III) chelation is described herein. The fluorescence intensity of the aluminum-DEMAX complex remains unaltered for over 24h at room temperature and is a linear function of the concentration of aluminum in the 0-1000mg/L range with a detection limit (LOD, defined as 3s/b) of 3.02µgL-1 and quantification limit (LOQ, defined as 10Sb/m) of 30µgL-1. The relative standard deviation (RSD) was 0.1

作者：Esra, Y?ld?z；?erife, Sa?mac?；Mustafa, Sa?mac?；Ahmet, ülgen

来源：Food chemistry 2017 年 237卷