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An analytical method based on liquid-liquid extraction combined with solid-phase extraction and isotope dilution-ultra-high performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) was well developed for simultaneous determination of aflatoxin B1 (AFB1), bisphenol A (BPA), and 4-nonylphenol (4-NP) in peanut oil. After adding isotope internal standards, the samples were firstly diluted...
A facile synthesis of hollow core/shell-structured CuO@SiO2 microspheres with uniform size and well-defined morphology is demonstrated. Electrochemical measurement results prove that the as synthesized CuO@SiO2 microspheres exhibit superior electrocatalytic activity toward the determination of 6-Benzylaminopurine (6-BA). Based on this, a simple and rapid electrochemical sensing strategy has been successfully...
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