Microporous hydrogen-bond organic frameworks-based SALDI-TOF MS for simultaneous enrichment and high sensitivity detection of paraquat and chlormequat

Lv, Yuanxia; Qin, Xiao-Huan; Hu, Kun; Ye, Fanggui; Zhao, Shulin

doi:10.1016/j.snb.2021.131132

Cited by 14 publications

(3 citation statements)

References 43 publications

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“…Using matrix-free solid substrates can eliminate matrix-related ions. However, pesticides and small analytes are often detected as proton and alkali metal adducts. , The FLT-R f -F(15) film provides mass spectra with low background noise and an absence of alkali adduct ions for several molecules (Figure S9). The origin of the absence of alkali adduct ions in the mass spectra is not yet fully understood.…”

Section: Resultsmentioning

confidence: 99%

Perfluoroalkyl Group-Covered Organosilica Films for the Sensitive Detection of Sulfonylurea Herbicides in Laser Desorption/Ionization Mass Spectrometry

Yamada

Murase

Goto

et al. 2023

J. Agric. Food Chem.

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Simple and rapid screening of agrochemicals greatly contributes to food and environmental safety. Matrix-free laser desorption/ionization mass spectrometry (LDI-MS) is an effective tool for high-throughput analysis of low-molecular-weight compounds. In this study, we report a UV-laser-absorbing organosilica film for the sensitive detection of various sulfonylurea herbicides using LDI-MS. Organosilica films with fluoroalkyl groups on the organic part are fabricated, followed by additional modification of the silica moiety with a fluoroalkyl coupling agent to cover the film surface with hydrophobic fluoroalkyl groups. Nanoimprinting is conducted to impart nanostructures on the film surface to enhance the LDI performance. The fabricated nanostructured organosilica films accomplish sensitive detection of cyclosulfamuron and azimsulfuron at concentrations as low as 1 fmol μL–1. The applicability of the nanostructured organosilica films is confirmed by the recovery of cyclosulfamuron and ethametsulfuron-methyl from pea sprouts (Pisum sativum) hydroponically grown in herbicide-spiked water at concentrations of 0.5 ppm.

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Section: Resultsmentioning

confidence: 99%

Perfluoroalkyl Group-Covered Organosilica Films for the Sensitive Detection of Sulfonylurea Herbicides in Laser Desorption/Ionization Mass Spectrometry

Yamada

Murase

Goto

et al. 2023

J. Agric. Food Chem.

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“…Lv et al synthesized negatively-charged MP-HOF with abundant oxygen-containing groups, a 𝜋-𝜋 conjugated structure, large specific surface area, and high stability, which enhanced its adsorption efficiency for paraquat (PQ) and chlormequat (CQ). [180] The method has been applied to the adsorption of paraquat in tap water and river water, thus demonstrating its potential practical applications. In conclusion, HOFs show great potential as efficient green adsorbents for organic dyes.…”

Section: Figure 27mentioning

confidence: 99%

Structural Design and Energy and Environmental Applications of Hydrogen‐Bonded Organic Frameworks: A Systematic Review

Liu,

et al. 2024

Advanced Science

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Hydrogen‐bonded organic frameworks (HOFs) are emerging porous materials that show high structural flexibility, mild synthetic conditions, good solution processability, easy healing and regeneration, and good recyclability. Although these properties give them many potential multifunctional applications, their frameworks are unstable due to the presence of only weak and reversible hydrogen bonds. In this work, the development history and synthesis methods of HOFs are reviewed, and categorize their structural design concepts and strategies to improve their stability. More importantly, due to the significant potential of the latest HOF‐related research for addressing energy and environmental issues, this work discusses the latest advances in the methods of energy storage and conversion, energy substance generation and isolation, environmental detection and isolation, degradation and transformation, and biological applications. Furthermore, a discussion of the coupling orientation of HOF in the cross‐cutting fields of energy and environment is presented for the first time. Finally, current challenges, opportunities, and strategies for the development of HOFs to advance their energy and environmental applications are discussed.

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“…30-40 mg kg −1 , and the mortality rate of oral poisoning is as high as 60.3-87.8%, accompanied by the lack of a specic antidote for PQ. 3,4 Hence, it is essential to establish a rapid, efficient, and highly sensitive detection method for PQ to improve the efficiency of government supervision, prevent environmental pollution, and ensure public safety.…”

Section: Introductionmentioning

confidence: 99%

Graphene electrochemical transistors decorated by Ag nanoparticles exhibiting high sensitivity for the detection of paraquat over a wide concentration range

Wang

Hou

et al. 2023

Anal. Methods

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Microporous hydrogen-bond organic frameworks-based SALDI-TOF MS for simultaneous enrichment and high sensitivity detection of paraquat and chlormequat

Cited by 14 publications

References 43 publications

Perfluoroalkyl Group-Covered Organosilica Films for the Sensitive Detection of Sulfonylurea Herbicides in Laser Desorption/Ionization Mass Spectrometry

Perfluoroalkyl Group-Covered Organosilica Films for the Sensitive Detection of Sulfonylurea Herbicides in Laser Desorption/Ionization Mass Spectrometry

Structural Design and Energy and Environmental Applications of Hydrogen‐Bonded Organic Frameworks: A Systematic Review

Graphene electrochemical transistors decorated by Ag nanoparticles exhibiting high sensitivity for the detection of paraquat over a wide concentration range

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