Advanced analytical method of nereistoxin using mixed-mode cationic exchange solid-phase extraction and GC/MS

Park, Yujin; Choe, Sanggil; Lee, Heesang; Jo, Jiyeong; Park, Yonghoon; Kim, Eun‐Mi; Pyo, Jae Sung; Jung, Jee H.

doi:10.1016/j.forsciint.2015.04.010

Cited by 31 publications

(14 citation statements)

References 20 publications

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“…Different combinations of MWCNT–COOH with five sorbents, C 18 , HLB, NH 2 , mixed-mode cationic exchange (MCX) and silica gel, were used to investigate the cleanup efficiency of the 21 analytes. MCX is a common sorbent applied to both polar and nonpolar compounds [ 23 ]; however, recovery of MWCNT–COOH + MCX was significantly lower than that of other combinations, especially AFB 1 (25.0%) and AFG 1 (32.9%). NH 2 is also a common sorbent that can remove similar types of compounds by interacting with chemicals, including some sugars, organic acids and pigments, through hydrogen bonding [ 24 ], but lower recovery of OTA (63.1%) was obtained here, and the recovery of OTB (72.4%) was much lower than those using other combinations; therefore, NH 2 is not an eligible sorbent for the cleanup of ochratoxins (OT).…”

Section: Resultsmentioning

confidence: 99%

Multiwalled Carbon Nanotube for One-Step Cleanup of 21 Mycotoxins in Corn and Wheat Prior to Ultraperformance Liquid Chromatography–Tandem Mass Spectrometry Analysis

Jiang

Wei

Wang

et al. 2018

Toxins

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One-step solid-phase extraction (SPE) using a multiwalled carbon nanotube (MWCNT) for simultaneous analysis of 21 mycotoxins, including nine trichothecenes, zearalenone (ZEN) and its derivatives, four aflatoxins, and two ochratoxins, in corn and wheat was developed. Several key parameters affecting the performance of the one-step SPE procedure—types of MWCNT, combinations with five sorbents (octadecylsilyl (C18), hydrophilic–lipophilic balance (HLB), mixed-mode cationic exchange (MCX), silica gel, and amino-propyl (NH2)), and filling amounts of the MWCNTs—were thoroughly investigated. The combination of 20 mg carboxylic MWCNT and 200 mg C18 was proven to be the most effective, allowing the quantification of all analyzed mycotoxins in corn and wheat. Under the optimized cleanup procedure prior to ultraperformance liquid chromatography–tandem mass spectrometry (UPLC–MS/MS) analysis, the method was validated by analyzing samples spiked at the limit of quantification (LOQ), two-times LOQ, and 10-times LOQ. Satisfactory linearity (r2 ≥ 0.9910), high sensitivity (LOQ in different ranges of 0.5–25 μg L−1), good recovery (75.6–110.3%), and acceptable precision (relative standard deviation (RSD), 0.3–10.7%) were obtained. The applicability of the method was further confirmed using raw samples of corn and wheat. In conclusion, the established method was rapid, simple and reliable for simultaneous analysis of 21 mycotoxins in corn and wheat.

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Section: Resultsmentioning

confidence: 99%

Multiwalled Carbon Nanotube for One-Step Cleanup of 21 Mycotoxins in Corn and Wheat Prior to Ultraperformance Liquid Chromatography–Tandem Mass Spectrometry Analysis

Jiang

Wei

Wang

et al. 2018

Toxins

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“…Marine annelid worm Lumbriconereis heteropoda afforded the Nereistoxin (NTX) analogs ( 38 – 43 ) belong to the organosulfur compounds. This category pesticide gain great favor in agriculture for impressive insecticidal activity and low toxicity [91] …”

Section: Marine Animal‐derived Insecticidal Substancesmentioning

confidence: 99%

Marine Natural Products: The Important Resource of Biological Insecticide

Song

Yang

Zhang

et al. 2021

Chemistry & Biodiversity

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Due to the unique environmental conditions and vast territory, marine habitat breeds more abundant biological resources than terrestrial environment. Massive marine biological species provide valuable resources for obtaining a large number of natural products with diverse structure and excellent activity. In recent years, new breakthroughs have been made in the application of marine natural products in drug development. In addition, the use of marine natural products to develop insecticides and other pesticide products has also been widely concerned. Targeting marine plants, animals, and microorganisms, we have collected information on marine natural products with insecticidal activity for nearly decade, including alkaloids, terpenes, flavonoids and phenols fatty acids, peptides, and proteins, et al. In addition, some active crude extracts are also included. This review describes the insecticidal activities of marine natural products and their broad applications for future research in agriculture and health.

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“…Aiming to reduce the risk of polluting the environment and to establish a safety standard of cartap, determining cartap content in food is of great importance. Various analytical methods have been used for detecting cartap, such as spectrophotometry [ 3 , 5 , 6 ], thin-layer chromatography [ 7 ], gas chromatography [ 8 ], high-performance liquid chromatography [ 9 , 10 ], gas chromatography-mass spectrometry [ 11 , 12 , 13 ], liquid chromatography-tandem mass spectrometry [ 14 ]. These methods are successfully applied to qualitatively and quantitatively determine cartap.…”

Section: Introductionmentioning

confidence: 99%

Rapid Colorimetric Detection of Cartap Residues by AgNP Sensor with Magnetic Molecularly Imprinted Microspheres as Recognition Elements

Deng

Fan

et al. 2018

Molecules

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The overuse of cartap in tea tree leads to hazardous residues threatening human health. A colorimetric determination was established to detect cartap residues in tea beverages by silver nanoparticles (AgNP) sensor with magnetic molecularly imprinted polymeric microspheres (Fe3O4@mSiO2@MIPs) as recognition elements. Using Fe3O4 as supporting core, mesoporous SiO2 as intermediate shell, methylacrylic acid as functional monomer, and cartap as template, Fe3O4@mSiO2@MIPs were prepared to selectively and magnetically separate cartap from tea solution before colorimetric determination by AgNP sensors. The core-shell Fe3O4@mSiO2@MIPs were also characterized by FT-IR, TEM, VSM, and experimental adsorption. The Fe3O4@mSiO2@MIPs could be rapidly separated by an external magnet in 10 s with good reusability (maintained 95.2% through 10 cycles). The adsorption process of cartap on Fe3O4@mSiO2@MIPs conformed to Langmuir adsorption isotherm with maximum adsorption capacity at 0.257 mmol/g and short equilibrium time of 30 min at 298 K. The AgNP colorimetric method semi-quantified cartap ≥5 mg/L by naked eye and quantified cartap 0.1–5 mg/L with LOD 0.01 mg/L by UV-vis spectroscopy. The AgNP colorimetric detection after pretreatment with Fe3O4@mSiO2@MIPs could be successfully utilized to recognize and detect cartap residues in tea beverages.

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Advanced analytical method of nereistoxin using mixed-mode cationic exchange solid-phase extraction and GC/MS

Cited by 31 publications

References 20 publications

Multiwalled Carbon Nanotube for One-Step Cleanup of 21 Mycotoxins in Corn and Wheat Prior to Ultraperformance Liquid Chromatography–Tandem Mass Spectrometry Analysis

Multiwalled Carbon Nanotube for One-Step Cleanup of 21 Mycotoxins in Corn and Wheat Prior to Ultraperformance Liquid Chromatography–Tandem Mass Spectrometry Analysis

Marine Natural Products: The Important Resource of Biological Insecticide

Rapid Colorimetric Detection of Cartap Residues by AgNP Sensor with Magnetic Molecularly Imprinted Microspheres as Recognition Elements

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