Materials for Solid-Phase Extraction of Organic Compounds

Fontanals, Núria; Marcé, Rosa María; Borrull, Francesc

doi:10.3390/separations6040056

Cited by 43 publications

(16 citation statements)

References 120 publications

(152 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Complexity and matrix interferences encountered during sample preparation steps have attracted the invention of more selective sorbents to replace conventional silica sorbents that are associated with a number of drawbacks, such as instability at extreme pHs and low extraction efficiencies [111]. The new sorbents that include, nanocomposite materials, metal-organic frameworks, and molecularly imprinted polymers, among others, are characterized with high sensitivity and selectivity towards various environmental organic pollutants.…”

Section: Advances In Spe Sorbentsmentioning

confidence: 99%

Polybrominated Diphenyl Ethers (PBDEs) as Emerging Environmental Pollutants: Advances in Sample Preparation and Detection Techniques

Nzangya¹,

Ndunda²,

Bosire³

et al. 2021

Emerging Contaminants

View full text Add to dashboard Cite

Environmental pollution has been a challenging phenomenon in most developing countries, due to the weak enforcement of environmental regulations. As a result, humans and animals are exposed to different environmental pollutants, which threaten their very existence. Some of the emerging pollutants of great concern are polybrominated diphenyl ethers (PBDEs) since they are categorized as probable human carcinogens and are also known to bioaccumulate in fatty tissues of animals and humans, reaching toxic levels upon continued exposure. Monitoring of these pollutants is therefore paramount as it contributes to addressing the problem of human exposure and environmental pollution. Their monitoring involves sample preparation methods followed by quantification with various detection techniques. Sample preparation methods that aim at reducing matrix interferences, enriching analytes and transfer of analytes to a desirable solvent, have evolved from conventional methods to advanced methods that facilitate the detection of these chemicals at very low concentrations. Likewise, detection techniques have advanced from chromatographic detection techniques to miniaturized systems that involve sensors. This chapter discusses PBDEs as emerging pollutants, their sources, and toxicological implications on humans, as well as advances in sample preparation methods and detection techniques in the determination of PBDEs.

show abstract

Section: Advances In Spe Sorbentsmentioning

confidence: 99%

Polybrominated Diphenyl Ethers (PBDEs) as Emerging Environmental Pollutants: Advances in Sample Preparation and Detection Techniques

Nzangya¹,

Ndunda²,

Bosire³

et al. 2021

Emerging Contaminants

View full text Add to dashboard Cite

show abstract

“…MOFs have been used as catalysts or for gas storage and also in chromatographic area and sample preparation [24,25]. Despite the good features of these materials, they show the same limitations of powder lab-made materials in sample preparation such as problematical packing into SPE cartridges, tedious centrifugation, or filtration steps needed in dispersive SPE [26]. Besides, in other formats based on fiber/stir bar, supports showed drawbacks such as the fiber fragility [25] and long extraction times (in the range of hours) [27].…”

Section: Introductionmentioning

confidence: 99%

Development of hybrid monoliths incorporating metal–organic frameworks for stir bar sorptive extraction coupled with liquid chromatography for determination of estrogen endocrine disruptors in water and human urine samples

Zatrochová

Martínez-Pérez-Cejuela

Catalá-Icardo

et al. 2022

Microchim Acta

View full text Add to dashboard Cite

A novel coating based on hybrid monolith with metal–organic framework (MOF) onto conventional Teflon-coated magnetic stir bars was developed. For this purpose, the external surface of the Teflon stir bar was firstly vinylized in order to immobilize a glycidyl methacrylate (GMA)–based polymer onto the magnet. Then, an amino-modified MOF of type MIL-101 (NH2-MIL-101(Al)) was covalently attached to the GMA-based monolith. After the synthesis process, several parameters affecting extraction of target estrogens by stir bar sorptive extraction (SBSE) including pH, ionic strength, extraction time, stirring rate, desorption solvent, and desorption time were also investigated. The resulting hybrid monolith was evaluated as SBSE sorbent for extraction of three estrogens (estrone, 17β-estradiol, estriol) and synthetic 17β-ethinylestradiol from water and human urine samples followed by HPLC with fluorescence detection (excitation and emission wavelengths, 280 and 310 nm, respectively). Under the optimal experimental conditions, the analytical figures of the method were established, achieving satisfactory limits of detection in the range of 0.015–0.58 µg L−1, recovery results ranging from 70 to 95% with RSD less than 6%, and precision values (intra- and inter-extraction units) below 6%. Graphical abstract

show abstract

“…The main idea is therefore to use miniaturized analytical techniques for reducing the costs whereas, with regard to the time factor, efforts are being made to develop techniques that accelerate the sample treatment. Over the years, it has passed from liquid-liquid extraction (LLE) [1] to a solid-phase extraction (SPE) [2,3] up to developing a new technique, dispersive liquid-liquid microextraction (DLLME), which uses very few quantities of solvents when compared to those of the LLE and which eliminates the problems connected with the SPE [4]. The DLLME, developed in 2006 by Razaee [5], made a notable innovation in the field of extraction analysis.…”

Section: Introductionmentioning

confidence: 99%

Analytical Scheme for Simultaneous Determination of Phthalates and Bisphenol A in Honey Samples Based on Dispersive Liquid–Liquid Microextraction Followed by GC-IT/MS. Effect of the Thermal Stress on PAE/BP-A Levels

Notardonato

Passarella

Ianiri

et al. 2020

MPs

View full text Add to dashboard Cite

In this paper, an analytical protocol was developed for the simultaneous determination of phthalates (di-methyl phthalate DMP, di-ethyl phthalate DEP, di-isobutyl phthalate DiBP, di-n-butyl phthalate DBP, bis-(2-ethylhexyl) phthalate DEHP, di-n-octyl phthalate DNOP) and bisphenol A (BPA). The extraction technique used was the ultrasound vortex assisted dispersive liquid–liquid microextraction (UVA-DLLME). The method involves analyte extraction using 75 µL of benzene and subsequent analysis by gas chromatography combined with ion trap mass spectrometry (GC-IT/MS). The method is sensitive, reliable, and reproducible with a limit of detection (LOD) below 13 ng g−1 and limit of quantification (LOQ) below 22 ng g−1 and the intra- and inter-day errors below 7.2 and 9.3, respectively. The method developed and validated was applied to six honey samples (i.e., four single-use commercial ones and two home-made ones. Some phthalates were found in the samples at concentrations below the specific migration limits (SMLs). Furthermore, the commercial samples were subjected to two different thermal stresses (24 h and 48 h at 40 °C) for evidence of the release of plastic from the containers. An increase in the phthalate concentrations was observed, especially during the first phase of the shock, but the levels were still within the limits of the regulations.

show abstract

Materials for Solid-Phase Extraction of Organic Compounds

Cited by 43 publications

References 120 publications

Polybrominated Diphenyl Ethers (PBDEs) as Emerging Environmental Pollutants: Advances in Sample Preparation and Detection Techniques

Polybrominated Diphenyl Ethers (PBDEs) as Emerging Environmental Pollutants: Advances in Sample Preparation and Detection Techniques

Development of hybrid monoliths incorporating metal–organic frameworks for stir bar sorptive extraction coupled with liquid chromatography for determination of estrogen endocrine disruptors in water and human urine samples

Analytical Scheme for Simultaneous Determination of Phthalates and Bisphenol A in Honey Samples Based on Dispersive Liquid–Liquid Microextraction Followed by GC-IT/MS. Effect of the Thermal Stress on PAE/BP-A Levels

Contact Info

Product

Resources

About