Tea Identification through Surface-Assisted Laser Desorption/Ionization Mass Spectrometry

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We have applied surface-assisted laser desorption/ionization mass spectrometry (SALDI-MS) usingtitanium dioxide nanoparticles(TiO2NPs)as the matrix and captopril (CAP) as internal standard for the determination of the concentrations of theanine and four c
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