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An optical oxygen-sensing material based on the fluorescence intensity changes of pyrene-1-butyric acid (PBA) chemisorption film has been developed and characterised. The fluorescence intensity of PBA film decreased with increase of oxygen concentration. The I 0 /I 100 value of PBA film is estimated to be 6.14+/-0.15 and large Stern-Volmer constant (K SV =0.028+/-0...
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