Simultaneous extraction of enrofloxacin and ciprofloxacin from chicken tissue by molecularly imprinted matrix solid-phase dispersion

Rapid and selective screening of melamine in bovine milk using molecularly imprinted matrix solid-phase dispersion coupled with liquid chromatography-ultraviolet detection

“…It permits complete dispersion of sample with the aid of shearing forces generated by blending process and offers exhaustive extraction, clean-up and concentration of analytes in a single step, which eliminates the most of the complications of performing classical SPE process and making sample preparation easier and faster. It drastically shortens the analysis time and reduces the consumption of toxic and expensive solvents, especially for solid, semisolid and highly viscous biological samples [22,24,25]. However, the routine dispersants for extracting MEL, such as mixed-mode cation exchange (MCX), polymer cation exchange (PCX), and strong cation exchange (SCX), are lack selectivity for analytes, which would lead to the coextraction of interferents and affect the quantification of analytes.…”

Emprego de polímeros de impressão molecular em preparo de amostras para análise de compostos orgânicos: aplicações e tendências

“…A extração por dispersão da fase sólida (MSPD-do inglês matrix solid-phase dispersion) tem sido aplicada principalmente para o preparo de amostras sólidas, semissólidas ou muito viscosas [120] . Devido à complexidade dessas amostras, geralmente é necessário que se realizem várias etapas de extração, tornando o procedimento moroso e muito suscetível a erros.…”

“…Yan et al [124] foram os primeiros a propor o uso do MIP na extração por dispersão da fase sólida e empregaram esta técnica no preparo de amostras para análise de fluoroquinolonas em ovo, [124] carne [120,124] e em soro [123,125] por HPLC. As amostras foram preparadas pela homogeneização de quantidades iguais de amostra e do polí-mero, utilizando gral e pistilo.…”

Molecularly imprinted polymer cartridges coupled to liquid chromatography for simple and selective analysis of penicilloic acid and penilloic acid in milk by matrix solid-phase dispersion

“…MIPs are synthetic materials that can provide complementary binding sites to specifically capture target analytes (Fu et al, 2011;Li et al, 2006). Because of their simple preparation method, good stability and excellent recognition properties, MIPs have been widely used in MSPD procedure (Gañ an et al, 2012;Qiao and Sun, 2010;Sun et al, 2008;Yan et al, 2007Yan et al, , 2011.…”