Determination of aldehydes in water samples by coupling magnetism-reinforced molecular imprinting monolith microextraction and non-aqueous capillary electrophoresis

Fang, Siyang; Liu, Yangyang; He, Jiahua; Zhang, Liuqing; Liyin, Zhengxi; Wu, Xiaoyi; Sun, Hui; Lai, Jia-Ping

doi:10.1016/j.chroma.2020.461602

Cited by 18 publications

(4 citation statements)

References 37 publications

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“…reported a new method combining magnetism‐reinforced in‐tube solid‐phase microextraction based on molecular imprinting for the determination of trace aldehydes. 75 Their magnetized imprinted methacrylate‐ester‐based monolith was synthesized using 2,4‐dinitroanaline as template molecule encapsulated by methacrylic acid monomer, before being mixed with the Fe 3 O 4 ferrofluid and EDMA to polymerize. The MIP containing monolith in a capillary eliminated excess of 2,4‐dinitrophenylhydrazine from the derivatized aldehyde solutions under the exertion of a magnetic field.…”

Section: Methods Development and Key Applicationsmentioning

confidence: 99%

Recent developments and applications of polymer monolithic stationary phases

Eeltink

Meston

Švec

2021

Analytical Science Advances

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This review highlights the current trends and the most recent advances in the field of preparation and application of organic polymer‐based monolithic materials and covers literature published in 2020. A short historical background is provided and protocols to anchor monoliths covalently to the wall of the column/separation device are discussed. Furthermore, advances in tuning the macroporous structure and establishing its link to separation performance are conferred. Finally, method development and key applications using novel monolithic columns are discussed.

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Section: Methods Development and Key Applicationsmentioning

confidence: 99%

Recent developments and applications of polymer monolithic stationary phases

Eeltink

Meston

Švec

2021

Analytical Science Advances

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“…The separation voltage determines the electric field intensity, and affects the migration rate of the samples [20]. Although a higher separation voltage will increase the migration rate and decrease the analysis time, higher voltage results in increased Joule heat, decreased baseline stability and sensitivity of electrophoresis, which ultimately reduced separation efficiency.…”

Section: Influence Of Voltage and Temperature On Separationmentioning

confidence: 99%

Fluorescence labeled capillary electrophoresis fingerprint analysis of sulfonamides residues in tea garden soil and tea

Bai,

An,

Tang

2022

E3S Web Conf.

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A fluorescence labeled capillary electrophoresis fingerprint method for the analysis of sulfonamides residues in tea garden soil and tea was established by using o-phthalaldehyde (OPA) as precolumn derivatization reagent. The effects of background electrolyte concentration, pH, column temperature and voltage on the separation conditions were investigated. The optimum separation conditions were as follows: Glycine sodium hydroxide slow concentration: 20 mmol/L; pH: 9.0; Column temperature: 20 °C; Separation voltage: 17 kv, pressure: 50 mbar, injection time: 8 s. Under the established optimal conditions, 13 sulfonamide derivatives could be separated efficiently within 9 min, and the linear range is 0.35~100μg/kg, the detection limit (signal-to-noise ratio is 3) is in the range of 0.12-0.25 μg/kg, the quantitative limit (signal-to-noise ratio is 10) is in the range of 0.35-0.70μg/kg.

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“…Molecular imprinting was considered an excellent method to design special recognition sites. [15][16][17] Thus, molecularly imprinted polymers (MIPs) have developed rapidly in the field of fluorescence sensors. Based on the outstanding selective recognition abilities of MIPs, such sensors have good selectivity and sensitivity.…”

Section: Introductionmentioning

confidence: 99%