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Abstract In this paper, a new quantitative detection system for thyroxine (T4) and carbamazepine (CBZ) was constructed. A mixture of MPA-capped Mn and ZnS quantum dots (MPA-Mn:ZnS QDs) exhibiting room-temperature… Click to show full abstract
Abstract In this paper, a new quantitative detection system for thyroxine (T4) and carbamazepine (CBZ) was constructed. A mixture of MPA-capped Mn and ZnS quantum dots (MPA-Mn:ZnS QDs) exhibiting room-temperature phosphorescence (RTP) was prepared, which serves as the detection signal. The hexadecyltrimethylammonium bromide/ MPA-Mn:ZnS QDs (CTAB/QD) compound binds T4 to produce a CTAB/QDsT the linear relationship of CTAB/QDs&T4-CBZ is CBZ△RTP=0.4178x+0.112, the correlation coefficient is R2=0.995, the detection limit is 3.43 nmol/L and the detection range is 7.9 nmol/L to 1.555 μmol/L. This method has many advantages, such as anti-interference (which can overcome the autofluorescence interference of biological samples), nontoxicity, sensitivity, simple operation and low cost, and can be applied to the quantitative detection of T4 and CBZ in human serum samples.
Journal Title: Journal of Molecular Structure
Year Published: 2020
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