Determination of tetracyclines in milk samples by magnetic solid phase extraction flow injection analysis

Methods for the separation, preconcentration, and determination of tetracycline antibiotics

“…SPE was used in the determination of tetracyclines in meat [15,19,21,22], fish [28-30, 45, 58], eggs [59,68], honey [34,35,37,69], and milk [33,[70][71][72][73][74][75][76][77][78][79][80]. In the case of milk, SPE was carried out in the majority of cases after the precipitation of proteins by trichloroacetic acid [70,75,77] or buffer solutions [33, 71-74, 79, 80].…”

“…The magnetic version of SPE [23,60,76,78] is an alternative to cartridges for SPE. Magnetic composi tion materials based on silicon dioxide were synthe sized by emulsion polymerization for the separation of tetracycline antibiotics from milk.…”

Importance of Treatment Process on the Analysis of Penicillins in Milk Samples by Capillary Electrophoresis

“…These matrices indicate the combination of factor settings in each experiment and allows for the simultaneous evaluation of several variables with the minimum number of trials. The results obtained were analyzed statistically to adjust each variable to its optimum [29].…”

Sulfonated polystyrene magnetic nanobeads coupled with immunochromatographic strip for clenbuterol determination in pork muscle

“…Various magnetic materials that contain different surface-functionalized chemical groups have been successfully used to absorb metal ions from polluted water [25][26][27], phenolic compounds from environmental samples [28,29], melamine from egg samples [30], sulfonamides and tetracyclines from milk samples [31], and trace amounts of leuco-malachite green from fish tissue [32]. However, MSPE has yet to be used to extract CLE from tissue samples.…”