Determination of sulfonamides in milk by capillary electrophoresis with PEG@MoS₂ as a dispersive solid-phase extraction sorbent.

ABSTRACT: A synthetic polyethylene glycol-molybdenum disulfide (PEG@MoS₂) composite was prepared using a simple method, and the application of this material in dispersive solid-phase extraction (DSPE) was investigated for the enrichment of eight sulfonamides (SAs) in milk samples. The composite was characterized by energy dispersive spectroscopy, scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy and Brunauer-Emmett-Teller measurements. The results showed that the MoS₂ synthesized in the presence of PEG has the advantage of a larger surface area and that the adsorption effect of this MoS₂ was enhanced. After extraction, the eight SAs were separated by capillary zone electrophoresis with a good linear relationship (

SUBMITTER: An J 

PROVIDER: S-EPMC5990762 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature