Abstract
In view of the significance of nitrofurantoin, efficient analytical method for accurate nitrofurantoin detection is in urgent demand. Considering the superior fluorescence performance of silver nanoclusters (Ag NCs) and rare report of nitrofurantoin detection by fluorescent Ag NCs, Ag NCs with good stability and uniform size were synthesised through one simple method by protection of histidine (His) and reduction of ascorbic acid (AA). Based on the quenching by nitrofurantoin, Ag NCs were successful applied in nitrofurantoin detection with high sensitivity. In the range of 0.5-150 μM, linear relationship between ln(F0 /F) and nitrofurantoin amounts was found. Static quenching and inner filter effect (IFE) was proved to be the main quenching mechanism. Significantly, the superior selectivity and satisfactory recovery results in bovine serum stated that Ag NCs provided better choice for nitrofurantoin detection.
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