Quantitative Analysis of Al3+ Using a Fluorescence Method Based on Aluminum Ion-Sensitized Peony Extract(Paeonol)
Drinking water is a major source of aluminum intake for humans.Trace amounts of alumi-num ions can cause significant harm to human health.The World Health Organization(WHO)sets the maximum allowable concentration of aluminum ions in drinking water at 200μg/L(7.41μmol/L).There-fore,high-sensitivity detection of aluminum ions is crucial.Current aluminum ion detection methods often suffer from complex procedures and long processing times.Consequently,developing a simple and rapid method for aluminum ion detection is important.Paeonol,an organic compound extracted from peony bark,exhibits a significant fluorescence enhancement when it binds with Al3+.Based on this fluorescence-enhancing property,a fluorescence method was established to detect aluminum ions.This method requires only 5 minutes of reaction time at room temperature,with a detection limit of 0.5 μmol/L(linear range:0～100 μmol/L).The developed method is fast,low-cost,simple,highly specific,and sensitive,offering great application potential.
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