CdTe quantum dots as fluorescence sensor for the determination of aminophylline in aqueous solution

A novel CdTe quantum dots (QDs) based technology platform was established in aqueous solution. It can perform accurate and simple determination of aminophylline concentration in pharmaceutical samples with satisfactory results. Under optimum conditions, the relative fluorescence intensity of CdTe quantum dots is linearly proportional aminophylline concentration from 2.00 to 80.0 μg mL −1 with a correlation coefficient of 0.9979 for aminophylline determination and a detection limit of 0.531 μg mL −1 .