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Novel hybrid ZnS:Mn2+quantum dots/N-methylpolypyrrole fluorescence probe for determination of nitro-aromatic compounds in water samples by using multivariate chemometric methods

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Abstract

Nitro-aromatic compounds (NACs) pose a significant risk to human health and other living organisms. In this paper, a novel ZnS:Mn2+ quantum dots/N-methylpolypyrrole (ZnS:Mn2+ QDs/NMPPy) hybrid fluorescence probe was synthesized and applied for the simultaneous determination of NACs. Multivariate chemometric methods, including principal component analysis and partial least squares (PLS), were used for analyses of response of sensor to different NACs. The sensing behavior of the hybrid QDs/polymer probe was investigated for common NACs in aqueous media. The PLS model was built under the optimum conditions for the simultaneous determination of a set of NACs. The descriptive and predictive power of the PLS models was assessed using the calculated values of root mean square errors (RMSE) and coefficient of determination (R2). The RMSE and R2 values were in the ranges of 0.01–0.96 and 0.95–0.99 for the training and test set samples, respectively. The linearity was estimated in the concentration range of 0.50–15.00 μM with the detection limit of 481.04, 293.15, 345.47, 458.13, and 131.79 nM for NB, NT, NP, DNP, and TNP, respectively. The results revealed that the designed optical sensor combined with chemometric algorithms could alleviate the problem of spectral overlapping of analytes and provide promising results for the simultaneous determination of NACs without a need for pre-extraction and separation in mixtures and complex media of seawater as actual samples.

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Data availability

The datasets used or analyzed during the current study are available from the corresponding author upon reasonable request.

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Acknowledgements

We are thankful to the Tarbiat Modares University Research Council and the Federation of Scientific Leaders of Iran for their economic support.

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Authors and Affiliations

  1. Department of Chemistry, Faculty of Basic Sciences, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran

    Negar Ghorbanian, Fatemeh Abbasi, Ahmad Mani-Varnosfaderani & Naader Alizadeh

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  1. Negar Ghorbanian
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  2. Fatemeh Abbasi
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  3. Ahmad Mani-Varnosfaderani
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  4. Naader Alizadeh
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Contributions

N. Ghorbanian was involved in investigation, data curation, and writing—original draft. F. Abbasi was involved in investigation. Ahmad Mani-Varnosfaderani was involved in data curation, formal analysis, methodology of software, and writing—review and editing. N. Alizadeh was involved in conceptualization, formal analysis, methodology, supervision, project administration, and writing—review and editing.

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Correspondence to Naader Alizadeh.

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Ghorbanian, N., Abbasi, F., Mani-Varnosfaderani, A. et al. Novel hybrid ZnS:Mn2+quantum dots/N-methylpolypyrrole fluorescence probe for determination of nitro-aromatic compounds in water samples by using multivariate chemometric methods. J IRAN CHEM SOC 21, 139–149 (2024). https://doi.org/10.1007/s13738-023-02913-8

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