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A novel electrochemical biosensor based on functional composite nanofibers for sensitive hybridization detection of p53 tumor suppressor using methylene blue (MB) as an electrochemical indicator is developed. The carboxylated multi-walled carbon nanotubes (MWNTs) doped nylon 6 (PA6) composite nanofibers (MWNTs–PA6) was prepared using electrospinning, which served as the nanosized backbone for pyrrole...
A method for the simultaneous screening and confirmation of the presence of fourteen tertiary amine stimulants in human urine by gas chromatography–mass spectrometry (GC–MS) in combination with liquid chromatography–tandem mass spectrometry (LC–MS/MS) has been developed and validated. Solid phase extraction (SPE) and liquid–liquid extraction (LLE) approaches were utilized for the pre-treatment of...
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