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A feasible method for the sensitive and selective determination of vitamin B1 with CdSe quantum dots

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Abstract

A novel CdSe quantum dots-based technology platform was established in aqueous solution. It can perform accurate and simple determination of vitamin B1 concentration in pharmaceutical samples with satisfactory results. Under optimum conditions, this method demonstrates high sensitivity and selectivity. A linear relationship was observed between 5.00 and 40.0 μg ml−1 with a correlation coefficient of 0.9963 for vitamin B1 determination and a detection limit of 70 ng ml−1. The citrate-protected CdSe quantum dots showing temperature-sensitive luminescence intensity variation and spectral shift at moderate temperature.

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Acknowledgement

This work was supported by the National Natural Science Foundation of China (no. 20275014).

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Authors and Affiliations

  1. Department of Chemistry, Lanzhou University, Lanzhou, 730000, China

    Jiefang Sun, Lihong Liu, Cuiling Ren, Xingguo Chen & Zhide Hu

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  1. Jiefang Sun
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  2. Lihong Liu
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  3. Cuiling Ren
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  4. Xingguo Chen
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  5. Zhide Hu
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Correspondence to Xingguo Chen.

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Sun, J., Liu, L., Ren, C. et al. A feasible method for the sensitive and selective determination of vitamin B1 with CdSe quantum dots. Microchim Acta 163, 271–276 (2008). https://doi.org/10.1007/s00604-008-0007-4

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  • DOI: https://doi.org/10.1007/s00604-008-0007-4

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