Amino-silica/graphene oxide nanocomposite coated cotton as an efficient sorbent for needle trap device

Heidari, Nahid; Ghiasvand, Alireza; Abdolhosseini, Sana

doi:10.1016/j.aca.2017.04.031

Cited by 53 publications

(15 citation statements)

References 38 publications

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“…This fact is possible due to the high content of hydroxyl groups on the polymer surface, providing a hydrophilic character. For this reason, the functionalization of the fibers with different groups is compulsory for being used in the microextraction context as sorbent as well as a support for nanocomposites [40]. The chemical structure indicates that the 2-OH, 3-OH, and 6-OH are the potentially available sites for the same chemical reactions that occur with alcohols.…”

Section: Cottonmentioning

confidence: 99%

Returning to Nature for the Design of Sorptive Phases in Solid-Phase Microextraction

et al. 2019

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Green analytical chemistry principles aim to minimize the negative impact of analytical procedures in the environment, which can be considered both at close (to ensure the safety of the analysts) and global (to conserve our natural resources) levels. These principles suggest, among other guidelines, the reduction/minimization of the sample treatment and the use of renewable sources when possible. The first aspect is largely fulfilled by microextraction, which is considered to be among the greenest sample treatment techniques. The second consideration is attainable if natural products are used as raw materials for the preparation of new extraction phases. This strategy is in line with the change in our production system, which is being gradually moved from a linear model (take-make-dispose) to a circular one (including reusing and recycling as key terms). This article reviews the potential of natural products as sorbents in extraction and microextraction techniques from the synergic perspectives of two research groups working on the topic. The article covers the use of unmodified natural materials and the modified ones (although the latter has a less green character) to draw a general picture of the usefulness of the materials.Separations 2020, 7, 2 2 of 22 principle identifies one of the trends of current research in analytical sciences, it is difficult to be applied when complex samples containing the analytes at very low concentrations are processed. In such scenarios, the simplification of the sample treatment and the reduction of the sources applied (reagents, energy) can be a more practical objective, at least currently. Microextraction techniques fulfill the latter criteria [8], and they are considered among the greenest sample treatment techniques [9].Microextraction techniques have evolved in the last decade following some key trends. Among them, the development of new extraction phases can be highlighted, considering the context of this review article. In this evolution, the tenth (use of renewable resources) and eleventh (replace or remove toxic reagents) principles of GAC are especially relevant [7]. In the liquid microextraction context, environmentally friendly solvents [10,11] such as CyreneTM [12] and deep eutectic solvents [13] are clear examples of this progress.The paradigm of our production system, which up to now has been based on a linear "take-make-dispose" model, is progressively changed to a circular model [14] where reusing, repairing, refurbishing, and recycling appear as key terms. The use of surpluses of natural products as raw materials for the preparation of new sorbents is an interesting contribution of analytical chemistry for changing the production model. This review article, which combines the vision of two research groups working in the topic, tries to draw the general picture of the potential of natural products for the synthesis of new sorptive phases in solid phase extraction and solid phase microextraction. The article will cover strategies with different green characterist...

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Section: Cottonmentioning

confidence: 99%

Returning to Nature for the Design of Sorptive Phases in Solid-Phase Microextraction

et al. 2019

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“…Because nickel in environmental water samples is often at low concentrations, suitable sample preparation procedures are usually required before its instrumental determination. Among various sample preparation techniques for metal ion and organic pollutants, solid phase extraction is the most often used one [9][10][11][12][13][14][15][16][17]. Recently, dispersive liquid-liquid microextraction (DLLME) as a simple, fast, sensitive, low-cost and solvent-less microextraction technique has been developed [18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Detection of trace nickel in environmental water by high-performance liquid chromatography after dispersive liquid-liquid microextraction

Chen¹,

Song²

2018

Proceedings of the 2018 7th International Conference on Energy, Environment and Sustainable Development (ICEESD 2018)

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Because of the toxic effects of nickel on human health and ecosystem, it is necessary to detect trace nickel in aquatic environments. A new method was proposed for the detection of trace nickel in water, by high performance liquid chromatography with diode array detection (HPLC-DAD) after dispersive liquid-liquid microextraction (DLLME). Dithizone was used as the chelating agent for Ni(II). Several factors influencing the extraction efficiency were studied, and the optimum experimental conditions were achieved. The analytical performance of the method was examined, and it was found that the limit of detection (LOD) was 0.12μg/L and the RSD was 5.3 %. The proposed method was utilized in the determination of nickel in environmental water samples with recoveries of 95.6-106.0 %.

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“…Because melamine in environmental water samples is often at low levels, suitable sample preparation procedures are often needed before its determination. Among various sample preparation techniques for trace analytes, solid phase extraction is the most often used one [7][8][9][10][11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Solid phase extraction of melamine from water using magnetic grapheme oxide as adsorbent

Zhou¹,

Huang²

2018

Proceedings of the 2018 7th International Conference on Energy, Environment and Sustainable Development (ICEESD 2018)

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Melamine can be introduced into environment via various industrial effluents, thus it is necessary to develop suitable analytical methods for determination of melamine in environmental samples. In this work, magnetic graphene oxide (MGO) was synthesized and used as the adsorbent for solid phase extraction of melamine. The parameters that affect the extraction efficiency of melamine were investigated. The optimum conditions, including sample pH, extraction and desorption time, and eluent volume were obtained. The analytical performance of the method was investigated, and it was found that the limit of detection (LOD) for melamine was 0.15μg/L and the RSD was 3.6 %. The proposed method was utilized in the determination of melamine in environmental water samples with recoveries were higher than 92%.

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Amino-silica/graphene oxide nanocomposite coated cotton as an efficient sorbent for needle trap device

Cited by 53 publications

References 38 publications

Returning to Nature for the Design of Sorptive Phases in Solid-Phase Microextraction

Returning to Nature for the Design of Sorptive Phases in Solid-Phase Microextraction

Detection of trace nickel in environmental water by high-performance liquid chromatography after dispersive liquid-liquid microextraction

Solid phase extraction of melamine from water using magnetic grapheme oxide as adsorbent

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