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《中国科学(B辑:化学)(英文版)》 2008-09
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Multi-walled carbon nanotubes based catalyst plasmon resonance light scattering analysis of tetracycline hydrochloride

HU Po, HUANG ChengZhi & ZHANG Li College of Chemistry and Chemical Engineering, MOE Key Laboratory on Luminescence and Real-Time Analysis, Southwest Uni- versity, Chongqing 400715, China  
It was found that multi-walled carbon nanotubes (MWNTs) could catalyze the redox reaction between chlorauric acid (HAuCl4) and reductive drugs such as tetracycline hydrochloride (TC), producing gold nanoparticles (Au NPs). By measuring the plasmon resonance light scattering (PRLS) signals of the resulting Au NPs, tetracycline hydrochloride can be detected simply and rapidly with a linear range of 4―26 μmol/L, a correlated coefficient (r ) of 0.9955, and a limit of detection (3σ) of 6.0 nmol/L. This method has been successfully applied to the detection of tetracycline hydrochloride tablets in clinic with the recovery of 101.9% and that of fresh urine samples with the recovery of 98.3%―102.0%.
【Fund】: the National Natural Science Foundation of China (Grant No. 20675065 20425517);; the National Research Foundation for the Doctoral Pro-gram of Higher Education of China (Grant No. JYB20060635003)
【CateGory Index】: R917
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