Efficiency of Hollow Fiber Liquid-Phase Microextraction Chromatography Methods in the Separation of Organic Compounds: A Review

Alsharif, Ali Mohamed Ali; Tan, Guan Huat; Choo, Yeun‐Mun; Lawal, A. O.

doi:10.1093/chromsci/bmw188

Cited by 46 publications

(11 citation statements)

References 162 publications

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“…However, the recovery is affected by the types of HF materials and organic solvents, extraction time, pH of the donor and acceptor phases, temperature, and the addition of salt (Alsharif et al, 2017).…”

Section: Determination Methods For Styrene and Its Metabolites In Uri...mentioning

confidence: 99%

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A review of extraction methods and analytical techniques for styrene and its metabolites in biological matrices

Rahimian

Soleimani

2022

Biomedical Chromatography

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We reviewed the toxicokinetics of styrene to introduce reliable surrogates for the biological monitoring of styrene workers. We have also discussed the extraction techniques and analytical methods of styrene and its metabolites. Sample preparation is the main bottleneck of the analytical techniques for styrene and its metabolites. Although some microextraction methods have been developed to overcome such disadvantages, some still have limitations such as long extraction time, fiber swelling and breakage, and the cost and the limited lifetime of the fiber. Among all, microextraction by packed sorbents, coupled with HPLC with ultraviolet detection (MEPS‐HPLC‐UV), can be the method of choice for determining styrene metabolites. Few studies investigated unchanged styrene in breath samples. Chemical determination of styrene in exhaled breath provides new insights into organ toxicity in workers with inhalation exposures and can be considered a fascinating tool in risk assessment strategies. Taking blood samples is invasive and less accepted by workers. In contrast, breath analysis is the most attractive method for workers because breath samples are easy to collect and non‐invasive, and sample collection does not require the transfer of workers to health facilities. Therefore, developing selective and sensitive methods for determining styrene in breath samples is recommended for future studies.

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Section: Determination Methods For Styrene and Its Metabolites In Uri...mentioning

confidence: 99%

“…Time-consuming extraction and low efficiency for highly polar compounds are the important limitations of the HF-LPME method (Alsharif et al, 2017).…”

Section: Determination Methods For Styrene and Its Metabolites In Uri...mentioning

confidence: 99%

A review of extraction methods and analytical techniques for styrene and its metabolites in biological matrices

Rahimian

Soleimani

2022

Biomedical Chromatography

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“…The volume of the acceptor solution is usually only several microliters, resulting in a high sample-to-acceptor volume ratio, thus, high enrichment factors can be obtained and less consumption of organic solvent can be achieved [43]. Due to the features including high preconcentration factors, efficient sample clean-up, low consumption of hazardous organic solvent, high selectivity, the reduction of matrix effect, and improved possibilities for automation [43,44], HF-LPME has been used in a wide variety of applications.…”

Section: Hf-lpmementioning

confidence: 99%

Modern microextraction techniques for natural products

Peng

2020

Electrophoresis

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Natural product analysis has gained wide attention in recent years, especially for herbal medicines, which contain complex ingredients and play a significant clinical role in the therapy of numerous diseases. The constituents of natural products are usually found at low concentrations, and the matrices are complex. Thus, the extraction of target compounds from natural products before analysis by analytical instruments is very significant for human health and its wide application. The commonly used traditional extraction methods are time‐consuming, using large amounts of sample and organic solvents, as well as expensive and inefficient. Recently, microextraction techniques have been used for natural product extraction to overcome the disadvantages of conventional extraction methods. In this paper, the successful applications of and recent developments in microextraction techniques including solvent‐based and sorbent‐based microextraction methods, in natural product analysis in recent years, especially in the last 5 years, are reviewed for the first time. Their features, advantages, disadvantages, and future development trends are also discussed.

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“…The present work describes a rather simple method for extraction, preconcentration and determination of PA complemented by electrochemical techniques, the results indicate that LPME possesses a good pre concentration factor, sensitivity, and low detection limit; therefore it could be considered as an efficient technique for analysis of aromatic nitro compounds [6,7]. Selective and sensitive detection of nitro aromatic explosives, in particular PA is of great current interest in both national security and environmental protection because they are not only explosives but also recognized as toxic pollutants.…”

mentioning

confidence: 99%

Electrochemical Detection of Picric Acid Using Glassy Carbon Electrode Modified Reduced Graphene Oxide by Single-Drop Microextraction Method.

Ihuomah¹,

Ihuoma²,

Sonaimuthu³

2018

IJAR

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The reduced graphene oxide composite-modified glassy carbon electrode (rGO/GCE) was developed as a simple, selective and sensitive electrochemical sensor for determination of picric acid (PA). The rGO was obtained by reduction of graphene oxide obtained via Hummer's method. The synthesised rGO was characterized using Fourier transform infrared spectroscopy (FTIR) and transmission Electron microscopy (TEM). GCE was modified with rGO and the electrochemical properties of the bare and modified electrode were investigated using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The results obtained showed that the modified electrode exhibited more excellent electrochemical properties than the bare GCE. The optimum conditions for detection of PA in water using CV and EIS were as follows: deposition potential at 100 mV/s, pH 2, and 0.5 M H 2 SO 4 was used as supporting electrolyte. The linear regression equation obtained was I (μA) = 0.6432C + 7.2359 and the detection limit were calculated to be 0.65 μg L −1 .

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Efficiency of Hollow Fiber Liquid-Phase Microextraction Chromatography Methods in the Separation of Organic Compounds: A Review

Cited by 46 publications

References 162 publications

A review of extraction methods and analytical techniques for styrene and its metabolites in biological matrices

A review of extraction methods and analytical techniques for styrene and its metabolites in biological matrices

Modern microextraction techniques for natural products

Electrochemical Detection of Picric Acid Using Glassy Carbon Electrode Modified Reduced Graphene Oxide by Single-Drop Microextraction Method.

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