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Caption : figure s1 the molecular structures of cypermethrin, deltamethrin and fenpropathrin

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Caption : figure s2 uv–vis absorption spectra of cypermethrin, deltamethrin and fenpropathrin (1 mg ml-1)

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Caption : figure s3 optimization of experimental conditions. reaction time (a), reaction temperature (b), ph value (c) and concentration of benzothiazole-cds (d) (n=5)

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Caption : figure s4 the standard curves of the relationship between cps concentration and fluorescence intensity