Solid-phase extraction of triazole fungicides from water samples using disks impregnated with carbon nanotubes followed by GC-MS analysis

Vieira, André Coutinho; Santos, Mariane Gonçalves; Figueiredo, Eduardo Costa

doi:10.1080/03067319.2016.1272679

Cited by 31 publications

(3 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several CNTs/cellulose composites were prepared using different strategies and applied for SPE operations: from cellulose-based membranes impregnated with CNTs, which were used to perform the disk-SPE extraction (in flow-through mode) of triazole pesticides from aqueous samples [55], to mixed matrix membranes (MMMs) for the extraction of PAHs from sewage pond water samples [56]. The first ones were prepared simply by percolating a surfactant suspension of CNTs through a cellulose membrane, preliminary oxidized with a hot nitric acid solution.…”

Section: Cellulose-based Membranesmentioning

confidence: 99%

Carbon nanomaterial-based membranes in solid-phase extraction

et al. 2023

View full text Add to dashboard Cite

Carbon nanomaterials (CNMs) have some excellent properties that make them ideal candidates as sorbents for solid-phase extraction (SPE). However, practical difficulties related to their handling (dispersion in the atmosphere, bundling phenomena, reduced adsorption capability, sorbent loss in cartridge/column format, etc.) have hindered their direct use for conventional SPE modes. Therefore, researchers working in the field of extraction science have looked for new solutions to avoid the above-mentioned problems. One of these is the design of CNM-based membranes. These devices can be of two different types: membranes that are exclusively composed of CNMs (i.e. buckypaper and graphene oxide paper) and polysaccharide membranes containing dispersed CNMs. A membrane can be used either as a filter, operating under flow-through mode, or as a rotating device, operating under the action of magnetic stirring. In both cases, the main advantages arising from the use of membranes are excellent results in terms of transport rates, adsorption capability, high throughput, and ease of employment. This review covers the preparation/synthesis procedures of such membranes and their potential in SPE applications, highlighting benefits and shortcomings in comparison with conventional SPE materials (especially, microparticles carbonaceous sorbents) and devices. Further challenges and expected improvements are addressed too. Graphical Abstract

show abstract

Section: Cellulose-based Membranesmentioning

confidence: 99%

Carbon nanomaterial-based membranes in solid-phase extraction

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Moreover, the adsorbent used in MSPE play a key role in efficient extraction. Lately, carbon-based magnetic nanomaterials including carbon nanotubes [ 6 ], graphene [ 7 ], metal-organic framework derived carbon [ 8 ], and activated carbon [ 9 ] were applied as adsorbents for MSPE due to their high adsorption ability, easy separation, and better performance in sample preparation. Recently, various natural biomass such as corn stalk [ 10 ], peanut shells [ 11 ], and more were employed to fabricate carbon-based magnetic materials owing to their low price, wide source, high efficiency, and friendly-environment.…”

Section: Introductionmentioning

confidence: 99%

Carbon-Based Fe3O4 Nanocomposites Derived from Waste Pomelo Peels for Magnetic Solid-Phase Extraction of 11 Triazole Fungicides in Fruit Samples

et al. 2018

View full text Add to dashboard Cite

Carbon-based Fe3O4 nanocomposites (C/Fe3O4 NCs) were synthesized by a simple one-step hydrothermal method using waste pomelo peels as the carbon precursors. The characterization results showed that they had good structures and physicochemical properties. The prepared C/Fe3O4 NCs could be applied as excellent and recyclable adsorbents for magnetic solid phase extraction (MSPE) of 11 triazole fungicides in fruit samples. In the MSPE procedure, several parameters including the amount of adsorbents, extraction time, the type and volume of desorption solvent, and desorption time were optimized in detail. Under the optimized conditions, the good linearity (R2 > 0.9916), the limits of detection (LOD), and quantification (LOQ) were obtained in the range of 1–100, 0.12–0.55, and 0.39–1.85 μg/kg for 11 pesticides, respectively. Lastly, the proposed MSPE method was successfully applied to analyze triazole fungicides in real apple, pear, orange, peach, and banana samples with recoveries in the range of 82.1% to 109.9% and relative standard deviations (RSDs) below 8.4%. Therefore, the C/Fe3O4 NCs based MSPE method has a great potential for isolating and pre-concentrating trace levels of triazole fungicides in fruits.

show abstract

“…In recent years, various techniques have been developed to determine triazole fungicides in aqueous solutions, such as solid-phase extraction (SPE), solid-phase microextraction, and stir-bar sorptive extraction. 6–9 Magnetic SPE (MSPE), which is an alternative to typical SPE, is based on application of a magnetic sorbent, enabling dispersion of a sorbent in a large sample volume, followed by efficient sorbent retrieval via an external magnetic field. 10 Because of the convenient and efficient magnetic separation process, MSPE can overcome the disadvantages of other methods, such as tedious or time consuming column packing and phase separation.…”

Section: Introductionmentioning

confidence: 99%

Preparation of a magnetic multiwalled carbon nanotube@polydopamine/zeolitic imidazolate framework-8 composite for magnetic solid-phase extraction of triazole fungicides from environmental water samples

Huang

Liu

et al. 2018

RSC Adv.

View full text Add to dashboard Cite

A novel magnetic zinc-based zeolitic imidazolate framework (MMP/ZIF-8) has been prepared using a magnetic multiwalled carbon nanotube@polydopamine nanocomposite as the magnetic core and support. It was then used as an adsorbent for magnetic solid-phase extraction of triazole fungicides from environmental water samples. Successful synthesis of MMP/ZIF-8 was confirmed by material characterization, and the results showed that the synthetic composite has a high Brunauer-Emmett-Teller surface area (141.56 m 2 g À1 ), large total pore volume (0.636 mL g À1 ), and high superparamagnetism with a saturation magnetization of 44.1 emu g À1 . To evaluate the extraction performance of MMP/ZIF-8, the main parameters that affect the extraction efficiency were optimized. Under the optimal conditions, the developed method shows good linearity (R 2 $ 0.9915) in the concentration range 1-400 mg L À1 . Low limits of detection (0.08-0.27 mg L À1 , signal/noise ¼ 3 : 1) and good precision (intraday relative standard deviation # 7.73%, interday relative standard deviation # 9.65%) are also achieved. The developed method was applied for analysis of triazole fungicides in environmental water samples.

show abstract

Solid-phase extraction of triazole fungicides from water samples using disks impregnated with carbon nanotubes followed by GC-MS analysis

Cited by 31 publications

References 44 publications

Carbon nanomaterial-based membranes in solid-phase extraction

Carbon nanomaterial-based membranes in solid-phase extraction

Carbon-Based Fe3O4 Nanocomposites Derived from Waste Pomelo Peels for Magnetic Solid-Phase Extraction of 11 Triazole Fungicides in Fruit Samples

Preparation of a magnetic multiwalled carbon nanotube@polydopamine/zeolitic imidazolate framework-8 composite for magnetic solid-phase extraction of triazole fungicides from environmental water samples

Contact Info

Product

Resources

About