Identification and quantification of benzimidazole metabolites of thiophonate-methyl sprayed on celery cabbage using SiO2@NiO solid-phase extraction in combination with HPLC-MS/MS

Yu, Quan; Liu, Shijie; Zheng, Feng; Xiao, Hua-Ming; Guan, Han; Feng, Yun

doi:10.1016/j.cclet.2019.07.065

Cited by 23 publications

(8 citation statements)

References 18 publications

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“…On account of their high efficiency, rapid effects, and low side effects to plants, BZDs have been extensively utilized to protect crops during the growing season and furnish post-harvest products with quality storage conditions. , Because such fungicides hold systemic properties and chemical stability, the inappropriate and excessive use of BZDs can lead to their residues in the flesh of the product and their long-term existence in soil and water . BZDs are reported to have teratogenicity, embryotoxicity and neurotoxicity, thus bringing about severe threats to both human health and environment. , Therefore, many countries and organizations have established standards for the maximum residue levels of BZDs in agricultural products . Considering the existence of trace levels and complex matrix effects, the direct determining and monitoring of BZDs remain a challenging task to some degree.…”

Section: Introductionmentioning

confidence: 99%

Construction of Stable Magnetic Vinylene-Linked Covalent Organic Frameworks for Efficient Extraction of Benzimidazole Fungicides

Guo

et al. 2023

ACS Appl. Mater. Interfaces

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Covalent organic frameworks (COFs) have attracted impressive interest in separation on aqueous media. Herein, we integrated the stable vinylene-linked COFs with magnetic nanosphere via the monomer-mediated in situ growth strategy to construct a crystalline Fe3O4@v-COF composite for enrichment and determination of benzimidazole fungicides (BZDs) from complex sample matrices. The Fe3O4@v-COF has a crystalline assembly, high surface area, porous character together with a well-defined core–shell structure, and serves as progressive pretreatment materials for magnetic solid phase extraction (MSPE) of BZDs. Adsorption mechanism studies revealed that the extended conjugated system and numerous polar cyan groups on v-COF provides abundant π–π and multiple hydrogen bonding sites, which are conducive to interact with BZDs collaboratively. Fe3O4@v-COF also displayed enrichment effects to various polar pollutions with conjugated structures and hydrogen-bonding sites. Fe3O4@v-COF-based MSPE-high-performance liquid chromatography exhibited the low limit of detection, wide linearity, and good precision. Moreover, Fe3O4@v-COF showed better stability, enhanced extraction performance, and more sustainable reusability in comparison with its imine-linked counterpart. This work proposes a feasible strategy on constructing the crystalline stable magnetic vinylene-linked COF composite for the determination of trace contaminants in complex food matrices.

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Section: Introductionmentioning

confidence: 99%

Construction of Stable Magnetic Vinylene-Linked Covalent Organic Frameworks for Efficient Extraction of Benzimidazole Fungicides

Guo

et al. 2023

ACS Appl. Mater. Interfaces

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“…In addition, HLB and C18 cartridges exhibited poor adsorption of cytosine [ 3 ] and guanosine [ 22 ] modifications, respectively. Liquid chromatography tandem mass spectrometry (LC–MS/MS) plays a crucial role in the realm of biomarker discovery [ 23 , 24 , 25 , 26 , 27 , 28 ]. As a complementary tool of reversed-phase liquid chromatography tandem mass spectrometry (RPLC–MS/MS), hydrophilic interaction liquid chromatography tandem mass spectrometry (HILIC–MS/MS), which mainly uses organic solvents as mobile phases, has higher sensitivity and has been widely utilized in biological sample analysis in recent years [ 29 , 30 ].…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Determination of Methylated Nucleosides by HILIC–MS/MS Revealed Their Alterations in Urine from Breast Cancer Patients

Fang

Hong

et al. 2022

Metabolites

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RNA methylation plays a vital role in the pathogenesis of a variety of diseases including cancer, and aberrant levels of modified nucleosides in RNA were revealed to be related to cancer. Urine is a favored source for biomarker discovery due to the non-invasion to patients. Herein, we developed a sensitive hydrophilic interaction liquid chromatography tandem mass spectrometry (HILIC–MS/MS) method combined with stable isotope dilution for accurate quantification of methylated nucleosides in human urine. With this method, we successfully quantified ten methylated nucleosides in urine samples collected from healthy controls and breast cancer patients. We found N6-methyladenosine (m6A), 2′-O-methyladenosine (Am), N1-methyladenosine (m1A), N6,2¢-O-dimethyladenosine (m6Am), N1-methylguanosine (m1G), 2′-O-methylguanosine (Gm), 5-methylcytidine (m5C) and 2′-O-methylcytidine (Cm) were all decreased in early-stage breast cancer patients, and a nomogram prediction model was constructed. Locally advanced breast cancer patients exhibited elevated levels of urinary 2′-O-methylated nucleosides in comparison to early-stage breast cancer patients. Together, we developed a robust method for the simultaneous determination of methylated nucleosides in human urine, and the results revealed an association between the contents of urinary methylated nucleosides and the occurrence of breast cancer, which may stimulate future studies about the regulatory roles of these methylated nucleosides in the initiation and progression of breast cancer.

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“…Since metallic fiber supports are unbreakable and chemically inert, various methods, such as sol-gel coating [8], electrodeposition [9], and hydrothermal method [10], were developed for the preparation of the metal-based SPME fibers to improve their extraction performance and stability. Over the past decades, a variety of nanomaterials have been employed as adsorbents in sample preparation [11][12][13][14]. Some nanostructured metal oxides have been frequently used as fiber coatings in practical SPME applications and are considered to be one of the most promising coating materials for the development of novel SPME fibers [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

“…Over the past decades, a variety of nanomaterials have been employed as adsorbents in sample preparation [11–14]. Some nanostructured metal oxides have been frequently used as fiber coatings in practical SPME applications and are considered to be one of the most promising coating materials for the development of novel SPME fibers [15–17].…”

Section: Introductionmentioning

confidence: 99%

Selective solid‐phase microextraction of polycyclic aromatic hydrocarbons in water based on oriented phosphorus‐containing titanium oxide nanofibers grown on titanium support prior to high‐performance liquid chromatography with ultraviolet detection

Kang

Chang

Wang

et al. 2022

J of Separation Science

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A novel solid-phase microextraction coating of phosphorous-containing titanium oxide composite was developed using titanium fiber as a support and a titanium source by hydrothermal oxidation in a phosphoric acid solution containing hydrogen peroxide. The morphology of the fiber coatings was controlled by the conditions of the hydrothermal oxidation reaction. The oriented nanofiber coating was employed to extract several types of representative aromatic analytes. The experimental results demonstrated that the as-prepared fiber exhibited excellent extraction efficiency toward polycyclic aromatic hydrocarbons. Combined with high-performance liquid chromatography with ultraviolet detection, main extraction conditions were optimized, including pH, ionic strength, extraction temperature, stirring rate, extraction time and desorption time. The established method presented good linearity from 0.05 to 200 μg/L with limit of detection ranging from 0.012 to 0.126 μg/L. This convenient and green procedure was suitable for the selective extraction and determination of typical polycyclic aromatic hydrocarbons in environmental water samples. The relative recoveries of 85.8-112% were obtained for the determination of target polycyclic aromatic hydrocarbons in water samples spiked with 5.0 and 15.0 μg/L. Moreover, the asprepared fiber showed at least 210 extraction/desorption cycles due to its high mechanical and chemical stability.

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Identification and quantification of benzimidazole metabolites of thiophonate-methyl sprayed on celery cabbage using SiO2@NiO solid-phase extraction in combination with HPLC-MS/MS

Cited by 23 publications

References 18 publications

Construction of Stable Magnetic Vinylene-Linked Covalent Organic Frameworks for Efficient Extraction of Benzimidazole Fungicides

Construction of Stable Magnetic Vinylene-Linked Covalent Organic Frameworks for Efficient Extraction of Benzimidazole Fungicides

Simultaneous Determination of Methylated Nucleosides by HILIC–MS/MS Revealed Their Alterations in Urine from Breast Cancer Patients

Selective solid‐phase microextraction of polycyclic aromatic hydrocarbons in water based on oriented phosphorus‐containing titanium oxide nanofibers grown on titanium support prior to high‐performance liquid chromatography with ultraviolet detection

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