Effective determination of clomazone and oxyfluorfen in aqueous samples by differential pulse stripping voltammetry
Апстракт
Two novel types of electrochemical sensors were obtained by chemical deposition of Pt and MoO2 nanoparticles onto multi walled carbon nano tubes (MWCNT) and used for determination of frequently used pesticides clomazone and oxyfluorfen in aqueous media via differential pulse stripping voltammetry (DPSV). Clomazone was determined in 0.1 M phosphate buffer solution at pH 7.0 in the concentration range 0.61-20.56 ng cm-3, with LOQ = 0.61 and LOD = 0.38 ng cm-3. Oxyfluorfen was determined with good reproducibility (RSD <2.4%) in the concentration range 2.5-34.5 ng cm-3, with r = 0.99 and a LOQ of 1.5 ng cm-3. Results were in the same range measured by HPLC/DAD, which was used as comparative method. Structural characterization of the dopped MWCNT performed by Raman spectroscopy, field emission scanning electron microscopy (FE-SEM), high-resolution transmission electron (HR-TEM), and X-ray crystallography revealed a preserved MWCNT structure decorated with well dispersed species of the plati...num and MoO2 nanoparticles.
Кључне речи:
Electrochemistry / Sensor / Voltammetry / Nanoparticles / Pesticides / EnvironmentИзвор:
Technics. Technologies. Education. Safety. 2021 - Proceedings, 2021, 2, 88-90Напомена:
- IX International Scientific Conference "Technics. Technologies. Education. Safety"; June 07-10, 2021; Borovets, Bulgaria
Колекције
Институција/група
VinčaTY - CONF AU - Momčilović, Milan Z. AU - Ranđelović, Marjan AU - Milićević, Jelena S. AU - Bojić, Aleksandar PY - 2021 UR - https://vinar.vin.bg.ac.rs/handle/123456789/10762 AB - Two novel types of electrochemical sensors were obtained by chemical deposition of Pt and MoO2 nanoparticles onto multi walled carbon nano tubes (MWCNT) and used for determination of frequently used pesticides clomazone and oxyfluorfen in aqueous media via differential pulse stripping voltammetry (DPSV). Clomazone was determined in 0.1 M phosphate buffer solution at pH 7.0 in the concentration range 0.61-20.56 ng cm-3, with LOQ = 0.61 and LOD = 0.38 ng cm-3. Oxyfluorfen was determined with good reproducibility (RSD <2.4%) in the concentration range 2.5-34.5 ng cm-3, with r = 0.99 and a LOQ of 1.5 ng cm-3. Results were in the same range measured by HPLC/DAD, which was used as comparative method. Structural characterization of the dopped MWCNT performed by Raman spectroscopy, field emission scanning electron microscopy (FE-SEM), high-resolution transmission electron (HR-TEM), and X-ray crystallography revealed a preserved MWCNT structure decorated with well dispersed species of the platinum and MoO2 nanoparticles. C3 - Technics. Technologies. Education. Safety. 2021 - Proceedings T1 - Effective determination of clomazone and oxyfluorfen in aqueous samples by differential pulse stripping voltammetry VL - 2 SP - 88 EP - 90 UR - https://hdl.handle.net/21.15107/rcub_vinar_10762 ER -
@conference{ author = "Momčilović, Milan Z. and Ranđelović, Marjan and Milićević, Jelena S. and Bojić, Aleksandar", year = "2021", abstract = "Two novel types of electrochemical sensors were obtained by chemical deposition of Pt and MoO2 nanoparticles onto multi walled carbon nano tubes (MWCNT) and used for determination of frequently used pesticides clomazone and oxyfluorfen in aqueous media via differential pulse stripping voltammetry (DPSV). Clomazone was determined in 0.1 M phosphate buffer solution at pH 7.0 in the concentration range 0.61-20.56 ng cm-3, with LOQ = 0.61 and LOD = 0.38 ng cm-3. Oxyfluorfen was determined with good reproducibility (RSD <2.4%) in the concentration range 2.5-34.5 ng cm-3, with r = 0.99 and a LOQ of 1.5 ng cm-3. Results were in the same range measured by HPLC/DAD, which was used as comparative method. Structural characterization of the dopped MWCNT performed by Raman spectroscopy, field emission scanning electron microscopy (FE-SEM), high-resolution transmission electron (HR-TEM), and X-ray crystallography revealed a preserved MWCNT structure decorated with well dispersed species of the platinum and MoO2 nanoparticles.", journal = "Technics. Technologies. Education. Safety. 2021 - Proceedings", title = "Effective determination of clomazone and oxyfluorfen in aqueous samples by differential pulse stripping voltammetry", volume = "2", pages = "88-90", url = "https://hdl.handle.net/21.15107/rcub_vinar_10762" }
Momčilović, M. Z., Ranđelović, M., Milićević, J. S.,& Bojić, A.. (2021). Effective determination of clomazone and oxyfluorfen in aqueous samples by differential pulse stripping voltammetry. in Technics. Technologies. Education. Safety. 2021 - Proceedings, 2, 88-90. https://hdl.handle.net/21.15107/rcub_vinar_10762
Momčilović MZ, Ranđelović M, Milićević JS, Bojić A. Effective determination of clomazone and oxyfluorfen in aqueous samples by differential pulse stripping voltammetry. in Technics. Technologies. Education. Safety. 2021 - Proceedings. 2021;2:88-90. https://hdl.handle.net/21.15107/rcub_vinar_10762 .
Momčilović, Milan Z., Ranđelović, Marjan, Milićević, Jelena S., Bojić, Aleksandar, "Effective determination of clomazone and oxyfluorfen in aqueous samples by differential pulse stripping voltammetry" in Technics. Technologies. Education. Safety. 2021 - Proceedings, 2 (2021):88-90, https://hdl.handle.net/21.15107/rcub_vinar_10762 .