Graphene oxide–polyaniline nanocomposite as a potential sorbent for dispersive solid-phase extraction and determination of selected pharmaceutical and personal care products in wastewater samples using HPLC with a diode-array detector

2016 ◽  
Vol 8 (8) ◽  
pp. 1898-1907 ◽  
Author(s):  
Masoumeh Rashvand ◽  
Maryam Vosough
Keyword(s):  
Graphene Oxide ◽  
Solid Phase Extraction ◽  
Solid Phase ◽  
Personal Care Products ◽  
Array Detector ◽  
Phase Extraction ◽  
Personal Care ◽  
Dispersive Solid Phase Extraction ◽  
Wastewater Samples ◽  
Polyaniline Nanocomposite

A graphene oxide–polyaniline nanocomposite was proposed for the dispersive solid-phase extraction of six pharmaceutical and personal care products in wastewater matrices.

scholarly journals Application of a Pillared-Layer Zn-Triazolate Metal-Organic Framework in the Dispersive Miniaturized Solid-Phase Extraction of Personal Care Products from Wastewater Samples

Molecules ◽  
2019 ◽  
Vol 24 (4) ◽  
pp. 690 ◽  
Author(s):  
Providencia González-Hernández ◽  
Ana Lago ◽  
Jorge Pasán ◽  
Catalina Ruiz-Pérez ◽  
Juan Ayala ◽  
...  
Keyword(s):  
Solid Phase Extraction ◽  
Solid Phase ◽  
Metal Organic Framework ◽  
Personal Care Products ◽  
Aqueous Sample ◽  
Phase Extraction ◽  
Personal Care ◽  
Relative Standard ◽  
Metal Organic ◽  
Organic Framework

The pillared-layer Zn-triazolate metal-organic framework (CIM-81) was synthesized, characterized, and used for the first time as a sorbent in a dispersive micro-solid phase extraction method. The method involves the determination of a variety of personal care products in wastewaters, including four preservatives, four UV-filters, and one disinfectant, in combination with ultra-high performance liquid chromatography and UV detection. The CIM-81 MOF, constructed with an interesting mixed-ligand synthetic strategy, demonstrated a better extraction performance than other widely used MOFs in D-µSPE such as UiO-66, HKUST-1, and MIL-53(Al). The optimization of the method included a screening design followed by a Doehlert design. Optimum conditions required 10 mg of CIM-81 MOF in 10 mL of the aqueous sample at a pH of 5, 1 min of agitation by vortex and 3 min of centrifugation in the extraction step; and 1.2 mL of methanol and 4 min of vortex in the desorption step, followed by filtration, evaporation and reconstitution with 100 µL of the initial chromatographic mobile phase. The entire D-µSPE-UHPLC-UV method presented limits of detection down to 0.5 ng·mL−1; intra-day and inter-day precision values for the lowest concentration level (15 ng·mL−1)-as a relative standard deviation (in %)-lower than 8.7 and 13%, respectively; average relative recovery values of 115%; and enrichment factors ranging from ~3.6 to ~34. The reuse of the CIM-81 material was assessed not only in terms of maintaining the analytical performance but also in terms of its crystalline stability.

scholarly journals Trace determination of chlorpheniramine in human plasma using magnetic dispersive solid-phase extraction based on a graphene oxide/Fe3O4@polythionine nanocomposite combined with high-performance liquid chromatography

RSC Advances ◽  
2017 ◽  
Vol 7 (84) ◽  
pp. 53210-53218 ◽  
Author(s):  
Maryam Ahmadi Daryakenary ◽  
Mohsen Zeeb
Keyword(s):  
High Performance Liquid Chromatography ◽  
Graphene Oxide ◽  
Liquid Chromatography ◽  
Solid Phase Extraction ◽  
Human Plasma ◽  
High Performance ◽  
Solid Phase ◽  
Phase Extraction ◽  
Dispersive Solid Phase Extraction

Graphene oxide/Fe3O4@polythionine (GO/Fe3O4@PTh) nanocomposite was fabricated for magnetic dispersive solid-phase extraction and high-performance liquid chromatography-ultraviolent detection (HPLC) of chlorpheniramine in human plasma.

scholarly journals Sample Preparation to Determine Pharmaceutical and Personal Care Products in an All-Water Matrix: Solid Phase Extraction

Molecules ◽  
2020 ◽  
Vol 25 (21) ◽  
pp. 5204
Author(s):  
Daniele Sadutto ◽  
Yolanda Picó
Keyword(s):  
Solid Phase Extraction ◽  
Solid Phase ◽  
Personal Care Products ◽  
Phase Extraction ◽  
Personal Care ◽  
Analytical Technique ◽  
Water Matrix ◽  
Emerging Trends ◽  
Dispersive Liquid Liquid Microextraction ◽  
Almost All

Pharmaceuticals and personal care products (PPCPs) are abundantly used by people, and some of them are excreted unaltered or as metabolites through urine, with the sewage being the most important source to their release to the environment. These compounds are in almost all types of water (wastewater, surface water, groundwater, etc.) at concentrations ranging from ng/L to µg/L. The isolation and concentration of the PPCPs from water achieves the appropriate sensitivity. This step is mostly based on solid-phase extraction (SPE) but also includes other approaches (dispersive liquid-liquid microextraction (DLLME), buckypaper, SPE using multicartridges, etc.). In this review article, we aim to discuss the procedures employed to extract PPCPs from any type of water sample prior to their determination via an instrumental analytical technique. Furthermore, we put forward not only the merits of the different methods available but also a number of inconsistencies, divergences, weaknesses and disadvantages of the procedures found in literature, as well as the systems proposed to overcome them and to improve the methodology. Environmental applications of the developed techniques are also discussed. The pressing need for new analytical innovations, emerging trends and future prospects was also considered.

scholarly journals Multi-Element Determination of Toxic and Nutrient Elements by ICP-AES after Dispersive Solid-Phase Extraction with Modified Graphene Oxide

2020 ◽  
Vol 10 (23) ◽  
pp. 8722
Author(s):  
Natalia Manousi ◽  
Eleni Deliyanni ◽  
George Zachariadis
Keyword(s):  
Electron Microscopy ◽  
Graphene Oxide ◽  
Solid Phase Extraction ◽  
Solid Phase ◽  
Emission Spectrometry ◽  
Local Market ◽  
Phase Extraction ◽  
Dispersive Solid Phase Extraction ◽  
Modified Graphene Oxide

A novel graphene-oxide-derived material was synthesized after modification of graphene oxide with sodium hydroxide and used for the dispersive solid-phase extraction (d-SPE) of different elements (Pb, Cd, Ba, Zn, Cu and Ni) prior to their determination by inductively coupled plasma atomic emission spectrometry (ICP-AES). The prepared nanomaterial was characterized by X-ray diffraction (XRD), nitrogen adsorption, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and Fourier transform infrared (FTIR) spectroscopy. Full factorial design and Derringer’s type desirability function were used for the optimization of the d-SPE procedure. Pareto charts illustrated the effects of each of the examined factors and their interactions on the determination of the elements. Under the optimum conditions, detection limits (LODs) for the elements ranged between 0.01 and 0.21 μg g−1, intra-day repeatability (n = 5) was lower than 1.9% and inter-day repeatability (n = 5 × 3) was lower than 4.7%. Relative recovery values ranged between 88.1 and 117.8%. The method was validated and successfully applied for the determination of trace elements in poultry, pork and beef samples from the local market. The proposed method is simple, rapid, sensitive and the novel sorbent can be used at least ten times.

Dispersive solid-phase extraction of organophosphorus pesticides from apple, cucumber and water samples using reduced graphene oxide coated with ZnO nanocomposites as a sorbent

2015 ◽  
Vol 7 (15) ◽  
pp. 6095-6102 ◽  
Author(s):  
Ting Sun ◽  
Yongri Jin ◽  
Jie Yang ◽  
Lanjie Li ◽  
Xiaolei Shi ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Solid Phase Extraction ◽  
Reduced Graphene Oxide ◽  
Water Samples ◽  
Solid Phase ◽  
Organophosphorus Pesticides ◽  
Phase Extraction ◽  
Dispersive Solid Phase Extraction ◽  
Reduced Graphene

RGO–ZnO nanocomposites were synthesized and used as DSPE adsorbent for enriching OPs in apple, cucumber and water samples.

Sign in / Sign up

Export Citation Format

Share Document