A spherical metal-organic coordination polymer for the microextraction of neonicotinoid insecticides prior to their determination by HPLC
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The authors describe a new spherical metal-organic coordination polymer (MOCP) for use as an adsorbent in solid-phase microextraction (SPME). By applying the ions Co(II), Fe(II), Cu(II), and Zn(II) in these polymers, MOCP with different morphology were obtained. The respective coatings for SPME display different extraction efficiency towards neonicotinoid insecticides (neo-nics). The Co(II)@MOCP coating displays an improved extraction capability for neo-nics when compared to the four commercially available coatings studied. Following extraction with the Co(II)@MOCP-coated fiber, the neo-nics were eluted using 1 mL of trifluoroacetic acid/acetonitrile solution and quantified by high performance liquid chromatography. The method, when applied to spiked honey samples, has good linearity (0.5–600 μg kg−1) and a low limit of detection (0.05–0.15 μg kg−1). The precision (n = 6) for a single fiber was in the range of 3.6–8.3%. The reproducibility (for n = 5) from fiber-to-fiber ranges between 5.4 and 8.8%. The Co(II)@MOCP-coated fiber can be reused more than 80 times without any apparent reduction in its performance. In addition, the relative recoveries from spiked honey samples are very good (91.5%–103.5%).
KeywordsSolid-phase microextraction Co(BF4)2 Neonicotinoid pesticides High performance liquid chromatography Honey samples
This work was supported by Shandong Agricultural Applied Technology Innovation Project (2018) and the Funds of Shandong “Double Tops” Program.
Compliance with ethical standards
The author(s) declare that they have no competing interests.
- 2.Woodcock BA, Bullock JM, Shore RF, Heard MS, Pereira MG, Redhead J, Ridding L, Dean H, Sleep D, Henrys P, Peyton J, Hulmes S, Hulmes L, Sárospataki M, Saure C, Edwards M, Genersch E, Knäbe S, Pywell RF (2017) Country-specific effects of neonicotinoid pesticides on honey bees and wild bees. Science 356(6345):1393–1395PubMedCrossRefGoogle Scholar
- 4.European Union Pesticide Database (2018) Current MRLs values. Active substances detail. http://ec.europa.eu/food/plant/pesticides/eu-pesticides-database/public/?even-t=activesubstance.selection&language=EN Accessed 30 May 2018
- 8.Jovanov P, Guzsvány V, Franko M, Lazić S, Sakač M, Šarić B, Banjac V (2013) Multi-residue method for determination of selected neonicotinoid insecticides in honey using optimized dispersive liquid-liquid microextraction combined with liquid chromatography-tandem mass spectrometry. Talanta 111:125–133PubMedCrossRefGoogle Scholar
- 9.Campillo N, Viñas P, Férez-Melgarejo G, Hernández-Córdoba M (2013) Liquid chromatography with diode array detection and tandem mass spectrometry for the determination of neonicotinoid insecticides in honey samples using dispersive liquid–liquid microextraction. J Agric Food Chem 61(20):4799–4805PubMedCrossRefGoogle Scholar
- 14.Pastor-Belda M, Garrido I, Campillo N, Viñas P, Hellín P, Flores P, Fenoll J (2016) Determination of spirocyclictetronic/tetramic acid derivatives and neonicotinoid insecticides in fruits and vegetables by liquid chromatography and mass spectrometry after dispersive liquid-liquid microextraction. Food Chem 202:389–395PubMedCrossRefGoogle Scholar
- 25.Mehrani Z, Ebrahimzadeh H, Aliakbar AR, Asgharinezhad AA (2018) A poly(4-nitroaniline)/poly(vinyl alcohol) electrospun nanofiber as an efficient nanosorbent for solid phase microextraction of diazinon and chlorpyrifos from water and juice samples. Microchim Acta 185:384. https://doi.org/10.1007/s00604-018-2911-6 CrossRefGoogle Scholar
- 26.Bagheri H, Amanzadeh H, Yamini Y, Masoomi MY, Morsali A, Salar-Amoli J, Hassan J (2018) A nanocomposite prepared from a zinc-based metal-organic framework and polyethersulfone as a novel coating for the headspace solid-phase microextraction of organophosphorous pesticides. Microchim Acta 185(62). https://doi.org/10.1007/s00604-017-2607-3
- 27.Wang W, Li Z, Wang W, Zhang L, Zhang S, Wang C, Wang Z (2018) Microextraction of polycyclic aromatic hydrocarbons by using a stainless steel fiber coated with nanoparticles made from a porous aromatic framework. Microchim Acta 185(20). https://doi.org/10.1007/s00604-017-2577-5