Green construction of hydroxyl-functionalized magnetic porous organic framework for effective extraction of triazine herbicides from environmental water and watermelon juice samples

Liu, Ziwang; Wang, Juntao; Yang, Xiu‐Wei; Wu, Qiuhua; Wang, Chun; Yan, Hongyuan

doi:10.1016/j.aca.2023.341222

Cited by 9 publications

(4 citation statements)

References 37 publications

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“…The LODs (0.11-0.33 µg/kg) were lower than the HDES-based DLLME method (1-2 µg/kg) [5]. Additionally, the specific surface area of PBMs was 427.6 m 2 /g, which is higher than the reported adsorbent of DDM-CD-POF (289.67 m 2 /g) [26], TAPA−Tp@MGO (112.96 m 2 /g) [29], Car-DMB (310.2 m 2 /g) [36] and OH-MON (398 m 2 /g) [37] for the adsorption of THs.…”

Section: Comparison With Reported Methodsmentioning

confidence: 65%

“…As shown in Figure 3D, the lowest recoveries (60.9%-73.1%) of THs were observed with ACN as the eluent. The highest extraction recoveries (85.6%-89.0%) were obtained with MeOH as eluent, which might be attributed to the similarity in polarity between THs and MeOH [26].…”

Section: Eluent Type and Volumementioning

confidence: 93%

“…The developed method for TH analysis was compared with the reported approaches in different samples such as watermelon juice [26], tomato [36], apple and grape juice [37], and corn [38] in terms of adsorbent type, specific surface area of adsorbent, amount of sorbent, recovery, extraction time, volume of elution solvent, detector and LODs. As illustrated in Table 2, the proposed method shows the merits of less consumption of adsorbent (7.0 mg) and eluent (0.75 mL) in comparison with reported methods [26,29,[36][37][38]. The LODs (0.11-0.33 µg/kg) were lower than the HDES-based DLLME method (1-2 µg/kg) [5].…”

Section: Comparison With Reported Methodsmentioning

confidence: 99%

“…The obtained PBMs possess high surface area and excellent recyclability, demonstrating the potential application of PBMs in the field of adsorption and separation. Additionally, it is important to note that the PBMs contain a large number of unreacted maleimide groups, which are prone to interact with THs through hydrogen bonding [25,26]. The aim of this work was to explore the performance of the PBMs as adsorbents for the extraction of THs from complex samples, thus expanding the potential application of PBMs in the field of sample pretreatment.…”

Section: Introductionmentioning

confidence: 99%

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Porous poly(bismaleimide‐co‐divinylbenzene) microspheres as dispersive solid‐phase extraction adsorbent coupled to high‐performance liquid chromatography for the determination of triazine herbicide residues in vegetable samples

Xu,

Bao,

Ning

et al. 2024

J of Separation Science

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In this work, monodisperse and nano‐porous poly(bismaleimide‐co‐divinylbenzene) microspheres with large specific surface area (427.6 m2/g) and rich pore structure were prepared by one‐pot self‐stable precipitation polymerization of 2,2′‐bis[4‐(4‐maleimidophenoxy) phenyl] propane and divinylbenzene. The prepared poly(bismaleimide‐co‐divinylbenzene) microspheres were employed as dispersive solid‐phase extraction (DSPE) adsorbent for the extraction of triazine herbicides. Under optimized conditions, good linearities were obtained between the peak area and the concentration of triazine herbicides in the range of 1–400 µg/L (R2 ≥ 0.9987) with the limits of detection of 0.12–0.31 µg/L. Triazine herbicides were detected using the described approach in vegetable samples (i.e., cucumber, tomato, and maize) with recoveries of 93.6%–117.3% and relative standard deviations of 0.4%–3.5%. In addition, the recoveries of triazine herbicides remained above 80.7% after being used for nine DSPE cycles, showing excellent reusability of poly(bismaleimide‐co‐divinylbenzene) microspheres. The adsorption of poly(bismaleimide‐co‐divinylbenzene) microspheres toward triazine herbicides was a monolayer and chemical adsorption. The adsorption mechanism between triazine herbicides and adsorbents might be a combination of hydrogen bonding, electrostatic interaction, and π‐π conjugation. The results confirmed the potential use of the poly(bismaleimide‐co‐divinylbenzene) microspheres‐based DSPE coupled to the high‐performance liquid chromatography method for the detection of triazine herbicide residues in vegetable samples.

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