These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: A new diketopyrrolopyrrole-based probe for sensitive and selective detection of sulfite in aqueous solution.
    Author: Yang X, Cui Y, Li Y, Zheng L, Xie L, Ning R, Liu Z, Lu J, Zhang G, Liu C, Zhang G.
    Journal: Spectrochim Acta A Mol Biomol Spectrosc; 2015 Feb 25; 137():1055-60. PubMed ID: 25291502.
    Abstract:
    A new probe was synthesized by incorporating an α,β-unsaturated ketone to a diketopyrrolopyrrole fluorophore. The probe had exhibited a selective and sensitive response to the sulfite against other thirteen anions and biothiols (Cys, Hcy and GSH), through the nucleophilic addition of sulfite to the alkene of probe with the detection limit of 0.1 μM in HEPES (10 mM, pH 7.4) THF/H2O (1:1, v/v). Meanwhile, it could be easily observed that the probe for sulfite changed from pink to colorless by the naked eye, and from pink to blue under UV lamp after the sulfite was added for 20 min. The NMR and Mass spectral analysis demonstrated the expected addition of sulfite to the C=C bonds.
    [Abstract] [Full Text] [Related] [New Search]