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In this work, a modified carbon fiber microdisk electrode (CFME) was created via the one-step electrochemical reduction of graphene oxide (GO) in a film on the surface of the electrode. This one-step electrochemically reduced GO-modified electrode (ERGO/CFME) displayed improved voltammetric responses to tryptophan (Trp), uric acid (UA), and glutathione (GSH) compared with those afforded by an unmodified...
A novel method has been developed for simultaneous qualitative analysis of coumarins in the rhizome of Angelica polymorpha Maxim. with the use of high-performance liquid chromatography (LC)–photodiode array detection (DAD)–electrospray ionization (ESI)–tandem mass spectrometry (MS). LC analysis was performed on an Agilent Eclipse XDB-C18 analytical column with a gradient solvent system of water and...
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