Magnetic solid phase extraction and gas chromatography–mass spectrometrical analysis of sixteen polycyclic aromatic hydrocarbons

Cai, Ying; Yan, Zhihong; NguyenVan, Manh; Wang, Lijia; Cai, Qingyun

doi:10.1016/j.chroma.2015.06.024

Cited by 29 publications

(8 citation statements)

References 29 publications

(43 reference statements)

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“…The presented sorbent was compared to other extraction materials that were currently used for the enrichment of PAHs based on the π–π interaction − ,− . Considering the results, the new use of the NC–Si sorbent proved to be efficient, sensitive, and reliable, with good precision and a dynamic linear range in extraction and pre-concentration of the PAHs from aqueous samples.…”

Section: Results and Discussionmentioning

confidence: 99%

“…To improve the sensitivity of analysis, a variety of different solid-phase extraction (SPE) sorbents have been developed to enrich PAHs at trace levels, including C 8 -, C 18 -, and C 30 -bonded silica, − graphene, − carbon nanotubes (CNTs), − metal organic frameworks (MOFs), − organic–inorganic hybrid materials, − conducting polymers, , molecularly imprinted polymers (MIPs), etc. To be distinguished from the reversed-phase long carbon chain sorbents based on the hydrophobic interaction, the π–π interaction between sorbents and PAHs played an important role in retention of PAHs on the adsorbing materials, which contained a delocalized π-electron system. − However, efforts to develop new, advanced sorbent materials to improve selectivity or specificity toward target analytes, higher sorptive capacity, and enhanced chemical or physical mechanical stability are continuing. Recent studies indicate that the introduction of a hydrophilic moiety is intend to achieve high efficiency on the hydrophobic matrices, which always strongly agglomerate in water, hindering the PAH adsorption processes. , …”

Section: Introductionmentioning

confidence: 99%

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Simultaneous Enrichment of Polycyclic Aromatic Hydrocarbons and Cu²⁺ in Water Using Tetraazacalix[2]arene[2]triazine as a Solid-Phase Extraction Selector

Zhao

Yang

et al. 2016

J. Agric. Food Chem.

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On the basis of the definite retention mechanism proven by the stationary phase for high-performance liquid chromatography, tetraazacalix[2]arene[2]triazine featuring multiple recognition sites was assessed as a solid-phase extraction (SPE) selector. The applicability of its silica support was used for the extraction of trace amounts of polycyclic aromatic hydrocarbons (PAHs) and Cu(2+) in aqueous samples, followed by high-performance liquid chromatography fluorometric and graphite furnace atomic absorption spectrometric determination. On the basis of the π-π interaction with PAHs and the chelating interaction with Cu(2+), the simultaneous extraction of PAHs and Cu(2+) and stepwise elution through tuning the eluent were successfully achieved, respectively. The SPE conditions affecting the extraction efficiency were optimized, including type and concentration of organic modifier, sample solution pH, flow rate, and volume. As a result of the special adsorption and desorption mechanism, high extraction efficiency was achieved with relative recoveries of 94.3-102.4% and relative standard deviations of less than 10.5%. The limits of detection were obtained with 0.4-3.1 ng L(-1) for PAHs and 15 ng L(-1) for Cu(2+), respectively. The method was applied to the analyses of PAHs and Cu(2+) in Xiliu Lake water samples collected in Zhengzhou, China.

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Section: Results and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Simultaneous Enrichment of Polycyclic Aromatic Hydrocarbons and Cu²⁺ in Water Using Tetraazacalix[2]arene[2]triazine as a Solid-Phase Extraction Selector

Zhao

Yang

et al. 2016

J. Agric. Food Chem.

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“…The proposed NF-PDA sorbent is compared with other SPE sorbents : C 18 [34], multiwalled carbon nanotube (MWCNTs), Carbon-Fe 3 O 4 [17] Carbon-Fe 3 O 4 [35] and fluorenyl functionalized magnetic nanoparticles (Fe 3 O 4 @SiO 2 @Flu) [36] in Table 3. The comparison is performed on the basis of some operational (sorbent amount, extraction time and sample volume) and analytical properties (LOD, recovery and precision).…”

Section: Comparison With Other Methodsmentioning

confidence: 99%

Polydopamine decorated 3D nickel foam for extraction of sixteen polycyclic aromatic hydrocarbons

Cai

Yan

Yang

et al. 2016

Journal of Chromatography A

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In this work, polydopamine coated 3D nickel foam (NF-PDA) was prepared and applied as sorbent for the solid phase extraction (SPE) of 16 polycyclic aromatic hydrocarbons (PAHs) from water samples. NF-PDA were synthesized by situ oxidative self-polymerization procedure and characterized by using the techniques of scanning electron microscopy (SEM), energy dispersive spectrum analysis (EDS) and X-ray photoelectron spectroscopy (XPS). Its performance was evaluated by the SPE of 16 PAHs from water samples, followed by gas chromatography-mass spectrometrical (GC-MS) analysis. The effects of the main experimental parameters (i.e. sorbent amount, desorption solvent, extraction time, water sample volume, elution volume, elution time, ionic strength and samle solution pH.) that could affect the extraction efficiencies were investigated. The results demonstrated that the NF-PDA had an excellent adsorption capability for the compounds. The methodology was validated for river water and wastewater, obtaining recoveries ranging from 89.6 to 97.5% with relative standard deviation values lower than 7.3% and limits of detection in the range 2.3-16.5ng/L.

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“…Many MNPs have been used in MSPE. In recent studies carbon‐based MNPs such as carbon nanotubes [14, 15], graphene [10, 16], phenyl [17], fluorenyl [18], porous β‐cyclodextrin polymer [19], C 8 [20], and C 18 [21] were used as sorbents because of their high adsorption capacity.…”

Section: Introductionmentioning

confidence: 99%

Magnetic solid‐phase extraction method for extraction of some pesticides in vegetable and fruit juices

Farajzadeh

Safi

Yadeghari

2020

J of Separation Science

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A new version of magnetic solid-phase extraction performed in a narrow-bore tube has been proposed for the extraction and preconcentration of different pesticides from various vegetable and fruit juices followed by gas chromatography. A few milligrams of C 8 @SiO 2 @Fe 3 O 4 nanoparticles are added into an aqueous sample solution placed in a narrow-bore tube. The sorbent particles move down through the tube under gravity and are collected at the end of the tube by applying an external magnetic field. The end of the tube is narrower and it is connected to a stopcock. After a predetermined time, the stopcock is opened and the solution is passed through the bed of the sorbent maintained by the magnet. Then the adsorbed analytes are desorbed using an elution solvent. To achieve high enrichment factors, a dispersive liquid-liquid microextraction method is carried out. The nanoparticles were characterized by scanning electron microscopy, X-ray diffraction, and FTIR spectroscopy. Under the optimum extraction conditions, limits of detection and quantification were in the ranges of 0.1-0.3 and 0.3-0.9 μg/L, respectively. High enrichment factors (1166-1605) and good extraction recoveries (58-80%) were obtained.

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Magnetic solid phase extraction and gas chromatography–mass spectrometrical analysis of sixteen polycyclic aromatic hydrocarbons

Cited by 29 publications

References 29 publications

Simultaneous Enrichment of Polycyclic Aromatic Hydrocarbons and Cu²⁺ in Water Using Tetraazacalix[2]arene[2]triazine as a Solid-Phase Extraction Selector

Simultaneous Enrichment of Polycyclic Aromatic Hydrocarbons and Cu²⁺ in Water Using Tetraazacalix[2]arene[2]triazine as a Solid-Phase Extraction Selector

Polydopamine decorated 3D nickel foam for extraction of sixteen polycyclic aromatic hydrocarbons

Magnetic solid‐phase extraction method for extraction of some pesticides in vegetable and fruit juices

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Magnetic solid phase extraction and gas chromatography–mass spectrometrical analysis of sixteen polycyclic aromatic hydrocarbons

Cited by 29 publications

References 29 publications

Simultaneous Enrichment of Polycyclic Aromatic Hydrocarbons and Cu2+ in Water Using Tetraazacalix[2]arene[2]triazine as a Solid-Phase Extraction Selector

Simultaneous Enrichment of Polycyclic Aromatic Hydrocarbons and Cu2+ in Water Using Tetraazacalix[2]arene[2]triazine as a Solid-Phase Extraction Selector

Polydopamine decorated 3D nickel foam for extraction of sixteen polycyclic aromatic hydrocarbons

Magnetic solid‐phase extraction method for extraction of some pesticides in vegetable and fruit juices

Contact Info

Product

Resources

About

Simultaneous Enrichment of Polycyclic Aromatic Hydrocarbons and Cu²⁺ in Water Using Tetraazacalix[2]arene[2]triazine as a Solid-Phase Extraction Selector

Simultaneous Enrichment of Polycyclic Aromatic Hydrocarbons and Cu²⁺ in Water Using Tetraazacalix[2]arene[2]triazine as a Solid-Phase Extraction Selector