Abstract
Pyrene interaction with a group of selected amines such as i.e. benzylamine, phenethylamine, trimethylamine, 1-phenylethylamine was studied in aqueous sodium dodecyl sulfate. All the four amines quenched the fluorescence intensity of pyrene in aqueous SDS. Pyrene acts as a sensitive and selective sensor for the detection of amines in environmental samples. Two different SDS concentrations (0.05 mol L− 1 and 0.1 mol L− 1) were used to get the optimum SDS concentration for maximum quenching and best detection and quantification limits. Lower SDS concentration (0.05 mol L− 1) was found the optimum for maximum quenching, lower detection and quantification limits. Fluorescence quenching of pyrene by the studied amines was treated with the Stern-Volmer equation that resulted in a Stern-Volmer constants (Ksv). Ksv reflects the sensitivity of pyrene for studied amines. Ksv varied between 1.962 × 104 − 0.020 × 103 mol L− 1. A sensitivity, detection limit (DL), quantification limit (QL) of pyrene for studied amines was found in the order Benzylamine > phenethylamie > trimethylamine > 1-phenylethylamine. DL varied from 4.53 × 10− 7 to 4.55 × 10− 4 mol L− 1 and QL varied from 1.51 × 10− 6 to 1.52 × 10− 3 mol L− 1. Method showed excellent reproducibility and is fruitful for the studied amines in environmental samples.
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Data has been included in the manuscript, though if the spectra’s of all the experiments performed was needed will be sent on request.
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Authors are thankful to higher education commission (HEC, Pakistan) and Bacha Khan University Charsadda Khyber Pakhtunkhwa Pakistan for financial support of this work.
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Idrees, M., Salam, A. Pyrene Interaction with Selected Amines in Aqueous Sodium Dodecyl Sulphate (SDS). J Fluoresc 31, 595–598 (2021). https://doi.org/10.1007/s10895-021-02688-2
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DOI: https://doi.org/10.1007/s10895-021-02688-2