Solid-phase extraction disk based on multiwalled carbon nanotubes for the enrichment of targeted pesticides from aqueous samples
Abstract
A sensitive method for the determination of six varying polarity pesticides (imidacloprid, acetamiprid, carbendazim, simazine, linuron, and tebufenozide) based on a solid-phase extraction disk with multiwalled nanotubes is proposed. A dispersion of multiwalled nanotubes in a surfactant aqueous solution (Triton X-100) was used for the preparation of the solid-phase extraction disk. The effect of surfactant on the functional groups of multiwalled nanotubes was examined by applying temperature-programmed desorption. It was found that this treatment increased the amount of oxygen groups of treated multiwalled nanotubes comparing with untreated ones. The factors that may influence the adsorption and recovery such as the kind and volume of eluent, volume, flow rate and pH of sample were investigated and optimized. Under the optimized conditions, the maximal enrichment factors for low polar pesticides are ranging from 4000 to 4985 and for more polar are 2250 and 2750. The linear range of cali...bration curves was 10-500 ng/L with correlation coefficient higher than 0.9960, and the detection limit was 6.2-23.7 ng/L. Finally optimized method was applied for determination trace level of five out of six pesticides in tap and river water samples with good recovery.
Keywords:
enrichment / multiwalled carbon nanotubes / pesticides / solid-phase extractionSource:
Journal of Separation Science, 2017, 40, 7, 1564-1571Funding / projects:
- Physics and Chemistry with Ion Beams (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45006)
DOI: 10.1002/jssc.201600957
ISSN: 1615-9306; 1615-9314
PubMed: 28160421
WoS: 000399782900016
Scopus: 2-s2.0-85016971369
Collections
Institution/Community
VinčaTY - JOUR AU - Zdolšek, Nikola AU - Kumrić, Ksenija AU - Kalijadis, Ana AU - Trtić-Petrović, Tatjana M. PY - 2017 UR - https://vinar.vin.bg.ac.rs/handle/123456789/1527 AB - A sensitive method for the determination of six varying polarity pesticides (imidacloprid, acetamiprid, carbendazim, simazine, linuron, and tebufenozide) based on a solid-phase extraction disk with multiwalled nanotubes is proposed. A dispersion of multiwalled nanotubes in a surfactant aqueous solution (Triton X-100) was used for the preparation of the solid-phase extraction disk. The effect of surfactant on the functional groups of multiwalled nanotubes was examined by applying temperature-programmed desorption. It was found that this treatment increased the amount of oxygen groups of treated multiwalled nanotubes comparing with untreated ones. The factors that may influence the adsorption and recovery such as the kind and volume of eluent, volume, flow rate and pH of sample were investigated and optimized. Under the optimized conditions, the maximal enrichment factors for low polar pesticides are ranging from 4000 to 4985 and for more polar are 2250 and 2750. The linear range of calibration curves was 10-500 ng/L with correlation coefficient higher than 0.9960, and the detection limit was 6.2-23.7 ng/L. Finally optimized method was applied for determination trace level of five out of six pesticides in tap and river water samples with good recovery. T2 - Journal of Separation Science T1 - Solid-phase extraction disk based on multiwalled carbon nanotubes for the enrichment of targeted pesticides from aqueous samples VL - 40 IS - 7 SP - 1564 EP - 1571 DO - 10.1002/jssc.201600957 ER -
@article{ author = "Zdolšek, Nikola and Kumrić, Ksenija and Kalijadis, Ana and Trtić-Petrović, Tatjana M.", year = "2017", abstract = "A sensitive method for the determination of six varying polarity pesticides (imidacloprid, acetamiprid, carbendazim, simazine, linuron, and tebufenozide) based on a solid-phase extraction disk with multiwalled nanotubes is proposed. A dispersion of multiwalled nanotubes in a surfactant aqueous solution (Triton X-100) was used for the preparation of the solid-phase extraction disk. The effect of surfactant on the functional groups of multiwalled nanotubes was examined by applying temperature-programmed desorption. It was found that this treatment increased the amount of oxygen groups of treated multiwalled nanotubes comparing with untreated ones. The factors that may influence the adsorption and recovery such as the kind and volume of eluent, volume, flow rate and pH of sample were investigated and optimized. Under the optimized conditions, the maximal enrichment factors for low polar pesticides are ranging from 4000 to 4985 and for more polar are 2250 and 2750. The linear range of calibration curves was 10-500 ng/L with correlation coefficient higher than 0.9960, and the detection limit was 6.2-23.7 ng/L. Finally optimized method was applied for determination trace level of five out of six pesticides in tap and river water samples with good recovery.", journal = "Journal of Separation Science", title = "Solid-phase extraction disk based on multiwalled carbon nanotubes for the enrichment of targeted pesticides from aqueous samples", volume = "40", number = "7", pages = "1564-1571", doi = "10.1002/jssc.201600957" }
Zdolšek, N., Kumrić, K., Kalijadis, A.,& Trtić-Petrović, T. M.. (2017). Solid-phase extraction disk based on multiwalled carbon nanotubes for the enrichment of targeted pesticides from aqueous samples. in Journal of Separation Science, 40(7), 1564-1571. https://doi.org/10.1002/jssc.201600957
Zdolšek N, Kumrić K, Kalijadis A, Trtić-Petrović TM. Solid-phase extraction disk based on multiwalled carbon nanotubes for the enrichment of targeted pesticides from aqueous samples. in Journal of Separation Science. 2017;40(7):1564-1571. doi:10.1002/jssc.201600957 .
Zdolšek, Nikola, Kumrić, Ksenija, Kalijadis, Ana, Trtić-Petrović, Tatjana M., "Solid-phase extraction disk based on multiwalled carbon nanotubes for the enrichment of targeted pesticides from aqueous samples" in Journal of Separation Science, 40, no. 7 (2017):1564-1571, https://doi.org/10.1002/jssc.201600957 . .