Construction of A Turn On Probe for Al3+ Based on Rhodamine B Derivative

As an unnecessary element for human body, aluminum can cause a variety of diseases when ingested in excess, so it is great significance Al3+ detection. A new rhodamine probe with excellent photochromic properties based on Al3+- induced ring-opening mechanism the spirolactam was proposed. Upon binding Al3+, generated 1:1 P1-Al3+ complex, confirmed by Job’s plot titrations analysis. Could exhibit remarkable fluorescence enhancement limit detection (LOD) 0.33 μM, and colorimetric response toward presence other common metal ions anions. The design thought enrich development probes Al3+.