In-tube solid phase microextraction and determination of ractopamine in pork muscle samples using amide group modified polysaccharide-silica hybrid monolith as sorbent prior to HPLC analysis

Latest Improvements and Expanding Applications of Solid-Phase Microextraction

“…The collected ACN has been evaporated nearly to dryness at 40 °C by rotary evaporation, and the residue has been dissolved with 2 mL of ACN for further DI extraction of a COF-coated SPME fiber . In another case, the solvents for the treatment of muscle samples have been dried under nitrogen stream, and the residual has been dissolved in 1.5 mL of ACN for further IT-SPME operation . After the food samples have been extracted by organic solvents and dispersed in water, the extraction procedures are similar to those in water samples.…”

Self‐assembly preparation of Zn2+‐immobilized silica hybrid monolith and application in solid‐phase micro‐extraction of β‐agonists

“…Before the preparation of the monolithic column, the fused silica capillary was pretreated according to the literature [22]. At the same time, a chitosan degradation solution was also produced using 1.0 g chitosan and 40 ml H 2 O 2 (3%, w/w), stirring at 70 • C for 6 h.…”

Enantioseparation in high performance liquid chromatography: preparation and evaluation of a vancomycin-based chiral stationary phase via surface-initiated atom transfer radical polymerization

“…[17][18][19][20] Among them, HPLC has the advantages of fast separation, high sensitivity, strong reproducibility and wide application elds, playing an increasingly important role in the detection and separation of racemic drugs. 21,22 However, the lack of a universal chiral selector translates into the need to design and fabricate novel chiral stationary phases (CSPs) in HPLC.…”