Highly sensitive “turn-on” fluorescent chemical sensor for trace analysis of Cr3Â + using electro-synthesized poly(N-(9-fluorenylmethoxycarbonyl)-l-histidine)

A highly-sensitive “turn-on” fluorescent sensing platform based on the electro-synthesized poly(N-(9-fluorenylmethoxycarbonyl)-l-histidine) was successfully employed for Cr3 + in white rice and bovine serum with satisfactory results.507