Optimization of the conditions of phenol determination in natural and potable waters by HPLC with sorption preconcentration

Sursyakova, Viktoria V.; Burmakina, Galina V.; Rubaylo, Anatoly I.

doi:10.1134/s1061934814110124

Cited by 4 publications

(2 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The amount of different impurities therein is the lowest due to exclusion of humic substances (humic acids, fulvic acids, and their microbiological degradation products in soils). Humic acids interfere with the determination of PLs [56], particularly, due to a high content of humic substances and their microbiological decomposition products. The starting electrophoregram displays intense peaks coinciding with the migration times of PL, GL, and 2-CP (Supporting information Fig.…”

Section: Determination Of Phenols In Spring Watermentioning

confidence: 99%

Determination of phenols in natural and waste waters by capillary electrophoresis after preconcentration on magnetic nanoparticles coated with aminated hypercrosslinked polystyrene

Gubin

Sukhanov

Кушнир

et al. 2021

J of Separation Science

View full text Add to dashboard Cite

An efficient sorbent for magnetic solid-phase extraction was developed from Fe 3 O 4 nanoparticles covered with aminated hypercrosslinked polystyrene. The sorbent has a saturation magnetization of 47 emu/g and a surface area of 509 mg/g and was tested for the extraction of 11 phenols from aqueous media. The optimum conditions were as follows: pH 3; adsorbent mass, 20.0 mg; adsorption time, 30 min; eluent (acetone) volume, 0.5 mL; and desorption time, 5 min. The enrichment factor after desorption reached 1595-1716 and the maximum adsorption capacity was 501-909 mg/g. Capillary electrophoresis was applied successively to separate 11 phenols after solid-phase extraction. The best separation was achieved using a fused silica capillary and borate buffer (pH 10.7) as a supporting electrolyte. After optimization, the linearity range was from 0.2 to 950 μg/L, and the limits of detection were 0.05-0.2 μg/L. The relative standard deviation varied from 6.1 to 8.7% (C = 1 μg/L) and from 2.9 to 3.5% (C = 500 μg/L). The determination of phenols is complicated in eutrophic water and spring water with a high content of humic and fulvic acids.

show abstract

Section: Determination Of Phenols In Spring Watermentioning

confidence: 99%

Determination of phenols in natural and waste waters by capillary electrophoresis after preconcentration on magnetic nanoparticles coated with aminated hypercrosslinked polystyrene

Gubin

Sukhanov

Кушнир

et al. 2021

J of Separation Science

View full text Add to dashboard Cite

show abstract

“…Pre‐column derivatization is well known to suffer from inadequate reactions and unstable results (He et al, 2016). These compounds could also be analysed directly using the LC method without derivatization (Faraji et al, 2020; Sohaniyan et al, 2019; Sursyakova et al, 2015). However, the sensitivity of this method might be greatly reduced by the interference of many contaminants, such as sugars, proteins and colours, in jujube.…”

Section: Introductionmentioning

confidence: 99%

Determination of the dissipative behaviour and final residue of sodium nitrophenol in jujube by liquid chromatography–tandem mass spectrometry

Lan

et al. 2022

Biomedical Chromatography

View full text Add to dashboard Cite

Through field trials and residue analysis, the dissipation behaviour and final residue levels of sodium nitrophenol on jujube were clarified to provide a basis for its safe application and the development of maximum residue limits. The samples were extracted with acetonitrile, cleaned up by a hydrophilic-lipophilic balanced solid-phase extraction column, determined by ultra-high LC-tandem mass spectrometry and quantified by the external standard method. The mean recoveries of sodium 5-nitroguaiacolate, sodium o-nitrophenol and sodium p-nitrophenol were 88.9%-103.8%, with relative standard deviations less than 13.6% at 0.002-0.2 mg/kg spiked levels. Sodium nitrophenol in jujube was dissipated according to the first-order kinetic equation with half-lives of 12.7-17.4 days. At a harvesting interval of 7 days, the residues of sodium nitrophenol in jujube were lower than the limit of 0.03 mg/kg established by the European Food Safety Authority. Residues of jujube were acceptable at a harvest interval of 7 days when sodium nitrophenol was sprayed twice at 9.0 mg/kg with an interval of 7 days. Therefore, the safety interval for sodium nitrophenol application on jujube can be set as 7 days.

show abstract

Ionic-liquid-modified magnetite nanoparticles for MSPE-GC-MS determination of 2,4-D butyl ester and its metabolites in water, soil, and bottom sediments

Gubin

Sukhanov

Кушнир

et al. 2022

Environmental Nanotechnology, Monitoring & Management

View full text Add to dashboard Cite

Optimization of the conditions of phenol determination in natural and potable waters by HPLC with sorption preconcentration

Cited by 4 publications

References 29 publications

Determination of phenols in natural and waste waters by capillary electrophoresis after preconcentration on magnetic nanoparticles coated with aminated hypercrosslinked polystyrene

Determination of phenols in natural and waste waters by capillary electrophoresis after preconcentration on magnetic nanoparticles coated with aminated hypercrosslinked polystyrene

Determination of the dissipative behaviour and final residue of sodium nitrophenol in jujube by liquid chromatography–tandem mass spectrometry

Ionic-liquid-modified magnetite nanoparticles for MSPE-GC-MS determination of 2,4-D butyl ester and its metabolites in water, soil, and bottom sediments

Contact Info

Product

Resources

About