discriminative detection of cysteine (Cys). The reaction of cysteine with BTAC results in the cleavage of the acrylate moiety from BTAC, thereby producing BTAC-OH, with a remarkable fluorescence enhancement at 560 nm. The probe exhibits high sensitivity and selectivity toward cysteine over homocysteine and glutathione and the detection limit reached as low as 124 nM for cysteine. The addition of Cys resulted
A highly selective 7-hydroxy-3-methyl-benzoxazinone based fluorescent probe for instant detection of thiophenols in environmental samples
作者:Ruibing An、Peng Wei、Datong Zhang、Na Su
DOI:10.1016/j.tetlet.2016.05.107
日期:2016.7
nzoxazinone based fluorescent probe for thiophenols has been designed and synthesized. The probe displays highly selective and sensitive detection to thiophenols over other common analytes with instant response and remarkable large Stokesshift. It’s noteworthy that biothiols, aliphatic thiols, and reducing anions do not perturb the sensing of thiophenols. The limit of detection of the probe was calculated