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Article Abstract
In the current work, a RLS technique based on β-cyclodextrin modified gold nanoparticles was validated for phenytoin determination in the exhaled breath condensate. It relies on the complexation of β-cyclodextrins using -OH groups with amine groups of phenytoin which results in an aggregation-induced Rayleigh light scattering intensity enhancement proportional to phenytoin addition. The method shows a linear relationship with phenytoin concentration in the range of 0.005-0.6 µg.mL with a limit of detection of 0.003 µg.mL. The validated Rayleigh light scattering system is successfully used for phenytoin determination in the EBC of patients receiving phenytoin.
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| http://dx.doi.org/10.1016/j.jpba.2022.115141 | DOI Listing |
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