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本文基于A13-离子对电价键固定在二乙氨基乙基交联葡聚糖凝胶（DEAESephadex）上的水杨基荧光酮的可逆荧光淬灭作用，研制了测定Al3-离子浓度的荧光传感层。其线性范围为20～150μg／L，重视性良好，响应速度快。该传感层已成功应用于水样和葡萄糖注射液中A13-离子的测定，并初步研究了荧光淬灭机理。
In this paper, based on the reversible fluorescence quenching of salicylfluorone immobilized on DEAESephadex by A13-ion pair electrovalency, a fluorescence sensing method for the determination of Al3- ion concentration was developed Floor. The linear range of 20 ~ 150μg / L, valued good, fast response. The sensing layer has been successfully applied to the determination of A13- ions in water samples and glucose injection. The fluorescence quenching mechanism has been studied preliminarily.