Abstract：
: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% for a 1µgL-1 aluminum level. The influences of the analytical parameters such as pH, waiting time of aluminum-DEMAX complex, amount of reagent, effect of temperature etc. were investigated. The developed method was successfully used for assaying aluminum in some food samples and dialysis solution, measured by the new home-made fluorimetric system. The results of analysis of the certified reference material (INCT-TL-1) are in good agreement with the certified value.
journal_name
Food Chemjournal_title
Food chemistryauthors
Yıldız E,Saçmacı Ş,Saçmacı M,Ülgen Adoi
10.1016/j.foodchem.2017.06.055subject
Has Abstractpub_date
2017-12-15 00:00:00pages
942-947eissn
0308-8146issn
1873-7072pii
S0308-8146(17)31037-3journal_volume
237pub_type
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