Hydrophilic molecularly imprinted dispersive solid-phase extraction coupled with liquid chromatography for determination of azoxystrobin residues in cucumber

Liu, Xinxin; Wang, Yan; Wang, Jun; Li, Ling; Li, Ranhong

doi:10.1007/s13726-019-00735-1

Cited by 7 publications

(6 citation statements)

References 43 publications

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“…Table 4 summarizes the main features regarding dSPE/D-µ-SPE with non-magnetic MIPs. The adsorbents can be obtained by precipitation [166][167][168][169][170][171][172][173][174], and bulk [175][176][177] polymerization has been used for dSPE/D-µ-SPE by shaking the sample/extract-MIP bead mixtures for times varying from 5.0 min [166] to 3.0 h [169]. Absorption times can be reduced to 1 min when assisting the procedure by ultrasounds, enough time for isolating phenolic compounds in aqueous samples using 10 mg of MIP [170].…”

Section: Dispersive Solid Phase Extraction and Microsolid Phase Extraction With Non-magnetic Mipsmentioning

confidence: 99%

“…Authors, however, did not report insights regarding low adsorption rate for reaching the equilibrium between the targets and the dt-MIPs. The procedures were found to be effective and selective for isolating fungicides from cucumber [168], sulfonamides from milk [166], bioactive compounds (polydatin) from rat's plasma and urine [169], progesterone hormones from plasma, urine and waters [175], and also for purifying extracts (pre-concentrating targets) such as polydatin from Chinese medical medicines [169], antibiotics from pork [167], aflatoxins from cultured fish [171], pyraclostrobin from ginseng [174], folic acid from foodstuff [176], and herbicides from shellfish [177]. Ionic molecularly imprinted polymers (IIPs) have also been proposed for dSPE [173].…”

Section: Dispersive Solid Phase Extraction and Microsolid Phase Extraction With Non-magnetic Mipsmentioning

confidence: 99%

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Molecularly Imprinted Polymers for Dispersive (Micro)Solid Phase Extraction: A Review

Jayasinghe

Moreda-Piñeiro

2021

Separations

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The review describes the development of batch solid phase extraction procedures based on dispersive (micro)solid phase extraction with molecularly imprinted polymers (MIPs) and magnetic MIPs (MMIPs). Advantages and disadvantages of the various MIPs for dispersive solid phase extraction and dispersive (micro)solid phase extraction are discussed. In addition, an effort has also been made to condense the information regarding MMIPs since there are a great variety of supports (magnetite and magnetite composites with carbon nanotubes, graphene oxide, or organic metal framework) and magnetite surface functionalization mechanisms for enhancing MIP synthesis, including reversible addition−fragmentation chain-transfer (RAFT) polymerization. Finally, drawbacks and future prospects for improving molecularly imprinted (micro)solid phase extraction (MIMSPE) are also appraised.

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Section: Dispersive Solid Phase Extraction and Microsolid Phase Extraction With Non-magnetic Mipsmentioning

confidence: 99%

Section: Dispersive Solid Phase Extraction and Microsolid Phase Extraction With Non-magnetic Mipsmentioning

confidence: 99%

Molecularly Imprinted Polymers for Dispersive (Micro)Solid Phase Extraction: A Review

Jayasinghe

Moreda-Piñeiro

2021

Separations

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“…After the reaction, template molecules are removed from the structure, leaving a site on the surface that is complementary in size, shape and chemical functionality to the target analyte. This ensures very high specificity and selectivity of MIPs, sought after in extraction procedures, and prompts their denomination as synthetic antibodies [ 1 , 2 , 28 , 29 ].…”

Section: Sorbents Based On Molecularly Imprinted Polymersmentioning

confidence: 99%

“…Out of the proposed MIP dSPE procedures, there was one sorbent that did not meet the selectivity expectation. This was reported by Wang et al, who synthesized hydrophilic molecularly imprinted microspheres (HMIMs) using hydroxypropyl methacrylate as a functional monomer and EGDMA as crosslinker in the presence of azoxystrobin fungicide as target template [ 29 ]. HMIM selectivity was investigated by carrying out extraction from a mixed solution of three fungicides, including azoxystrobin, which was absorbed in only marginally higher amounts.…”

Section: Sorbents Based On Molecularly Imprinted Polymersmentioning

confidence: 99%

Recent Materials Developed for Dispersive Solid Phase Extraction

Ścigalski¹,

Kosobucki²

2020

Molecules

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Solid phase extraction (SPE) is an analytical procedure developed with the purpose of separating a target analyte from a complex sample matrix prior to quantitative or qualitative determination. The purpose of such treatment is twofold: elimination of matrix constituents that could interfere with the detection process or even damage analytical equipment as well as enriching the analyte in the sample so that it is readily available for detection. Dispersive solid phase extraction (dSPE) is a recent development of the standard SPE technique that is attracting growing attention due to its remarkable simplicity, short extraction time and low requirement for solvent expenditure, accompanied by high effectiveness and wide applicability. This review aims to thoroughly survey recently conducted analytical studies focusing on methods utilizing novel, interesting nanomaterials as dSPE sorbents, as well as known materials that have been only recently successfully applied in dSPE techniques, and evaluate their performance and suitability based on comparison with previously reported analytical procedures.

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“…Liu, Wang, Wang, Wang, Wang, Li, and Li (2019) developed a hydrophilic molecularly imprinted dispersive solid‐phase extraction (d‐SPE) method coupled with liquid chromatography (LC) for azoxystrobin (pesticide) determination. Hydroxypropyl methacrylate, ethylene glycol dimethacrylate, azobisisobutyronitrile, and butanone + n‐heptane solutions were used as monomer, cross‐linker, initiator, and solvent, respectively, for polymerization to produce hydrophilic molecularly imprinted microspheres (HMIMs).…”

Section: Extraction Techniquesmentioning

confidence: 99%

Analytical methods to analyze pesticides and herbicides

Begum

Xue

2020

Water Environment Research

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This paper reviews studies published in 2019, in the area of analytical techniques for determination of pesticides and herbicides. It should be noted that some of the reports summarized in this review are not directly related to but could potentially be used for water environment studies. Based on different methods, the literatures are organized into six sections, namely extraction methods, electrochemical techniques, spectrophotometric techniques, chemiluminescence and fluorescence methods, chromatographic and mass spectrometric techniques, and biochemical assays.

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Hydrophilic molecularly imprinted dispersive solid-phase extraction coupled with liquid chromatography for determination of azoxystrobin residues in cucumber

Cited by 7 publications

References 43 publications

Molecularly Imprinted Polymers for Dispersive (Micro)Solid Phase Extraction: A Review

Molecularly Imprinted Polymers for Dispersive (Micro)Solid Phase Extraction: A Review

Recent Materials Developed for Dispersive Solid Phase Extraction

Analytical methods to analyze pesticides and herbicides

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