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A rapid, simple, inexpensive fluorescence analysis method for determination of famotidine based on polyethyleneimine (PEI)‐capped Ag nanoclusters (PEI‐Ag NCs) was developed. The study showed that addition of famotidine could cause efficient quenching of PEI‐Ag NC fluorescence, as the presence of famotidine could cause aggregation of Ag NCs and quench its fluorescence. The sensitivity and selectivity...
It was found that flavonoids could remarkably inhibit the chemiluminescence (CL) intensity of an off‐line gold nanoparticle (AuNP)‐catalyzed luminol–H2O2 CL system. By contrast, flavonoids enhanced the CL intensity of an on‐line AuNP‐catalyzed luminol–H2O2 CL system. In the off‐line system, the AuNPs were prepared beforehand, whereas in the on‐line system, AuNPs were produced by on‐line mixing of...
Chemiluminescence (CL) detection for the determination of estrogen benzoate, using the reaction of tris(1,10–phenanthroline)ruthenium(II)–Na2SO3–permanganate, is described. This method is based on the CL reaction of estrogen benzoate (EB) with acidic potassium permanganate and tris(1,10–phenanthroline)ruthenium(II). The CL intensity is greatly enhanced when Na2SO3 is added. After optimization of the...
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