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Chloramphenicol (CAP), as a broad-spectrum antibiotic, has been worldwide banned for using in the food producing animals due to its overuse may cause severe threats to public health. It is therefore highly desirable to develop facile, selective and sensitive biosensor for CAP detection and monitoring in drug and foodstuff samples. In this work, three-dimensional reduced graphene oxide (3DRGO) architectures...
A label-free electrochemiluminescence (ECL) immunosensor for ultrasensitive and rapid detection of marine pathogenic bacterium Vibrio parahaemolyticus (VP) in seawater and seafood was developed based on multi-functionalized graphene oxide, which was prepared with N-(4-aminobutyl)-N-ethylisoluminol (ABEI) and VP antibody (anti-VP) simultaneously immobilized on the surface of magnetic graphene oxide...
A novel method for the simultaneous determination of 9-ethylphenanthrene (9-EP), pyrene (Pyr) and 1-hydroxypyrene (1-OH-Pyr) in an aqueous solution using hydroxyl-propyl β-cyclodextrin (HPCD) as a sensitizer has been established. The overlap of the conventional fluorescence spectra of these molecules is resolved using synchronous fluorescence spectrometry with the double scans method. The simultaneous...
A simple and sensitive kinetic-spectrophotometric method is described for the determination of vanadium and the possible mechanism of catalytic reaction is proposed. The method is based on the vanadium(V)-catalyzed oxidation of 1,8-diaminonaphthalene (DNA) by potassium bromate (Tiron as activator) at pH 3.8 and 40 o C. The reaction was monitored spectrophotometrically by measuring the increase...
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