Cyclodextrin-functionalized reduced graphene oxide as a fiber coating material for the solid-phase microextraction of some volatile aromatic compounds

2015 ◽  
Vol 38 (10) ◽  
pp. 1711-1720 ◽  
Author(s):  
Shuaihua Zhang ◽  
Zhi Li ◽  
Chun Wang ◽  
Zhi Wang
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Aromatic Compounds ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Coating Material ◽  
Fiber Coating ◽  
Reduced Graphene ◽  
Volatile Aromatic Compounds

Application of mesoporous carbon as a solid-phase microextraction fiber coating for the extraction of volatile aromatic compounds

2015 ◽  
Vol 38 (16) ◽  
pp. 2880-2886 ◽  
Author(s):  
Xi Zhang ◽  
Xiaohuan Zang ◽  
Guijiang Zhang ◽  
Chun Wang ◽  
Zhi Wang
Keyword(s):  
Aromatic Compounds ◽  
Mesoporous Carbon ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Fiber Coating ◽  
Volatile Aromatic Compounds

scholarly journals Reduced Graphene Oxide-Cadmium Sulfide Quantum Dots Nanocomposite Based Dispersive Solid Phase Microextraction for Ultra-Trace Determination of Carbamazepine and Phenobarbital

2021 ◽  
Author(s):  
Ali Shafiee ◽  
Behzad Aibaghi ◽  
Xu Zhang
Keyword(s):  
Quantum Dots ◽  
Graphene Oxide ◽  
Cadmium Sulfide ◽  
Reduced Graphene Oxide ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Uv Detector ◽  
Reduced Graphene ◽  
Ultra Trace

This research presents a fast, sensitive, and selective ultrasound-assisted dispersive solid phase microextraction technique for simultaneous preconcentration and determination of ultra-trace amount of carbamazepine and phenobarbital. Reduced graphene oxide sheets decorated with cadmium sulfide quantum dots was synthesized, characterized, and used as a high capacity adsorbent. A high performance liquid chromatography with UV detector (HPLC-UV) instrument with 58:42 composition of methanol:acetic acid/acetate buffer (pH = 5; 0.05 mol L-1) as the mobile phase and set on the wavelength of 230 nm was used to separate and quantify the analytes. In this regard, different parameters affecting adsorption and desorption of the analytes on the surface of the nanocomposite were studied and optimized to maximize the efficiency of the method. The method was linear in the ranges of 0.5-180 and 0.5-140 ng mL−1 (correlation coefficient (r) > 0.999) with limits of detection of 0.19 and 0.24 ng mL−1 for carbamazepine and phenobarbital, respectively. Eventually, to evaluate the efficiency of the proposed method for the determination of pharmaceuticals in biological samples, different real samples including breast milk, urine and human plasma were tested. Obtained recoveries values were within the range of 96.3 ± 2 to 103.7 ± 3.3% which showed satisfactory efficiency.

Self-supported 3D reduced graphene oxide for solid-phase extraction: An efficient and low-cost sorbent for environmental contaminants in aqueous solution

Talanta ◽  
2021 ◽  
pp. 122750
Author(s):  
Raimara de Souza Gomes ◽  
Anderson Thesing ◽  
Jacqueline Ferreira Leite Santos ◽  
Andreia Neves Fernandes
Keyword(s):  
Aqueous Solution ◽  
Graphene Oxide ◽  
Solid Phase Extraction ◽  
Reduced Graphene Oxide ◽  
Solid Phase ◽  
Low Cost ◽  
Environmental Contaminants ◽  
Phase Extraction ◽  
Reduced Graphene

Simple preparation of reduced graphene oxide coatings for solid phase micro-extraction (SPME) of furfural to be detected by gas chromatography/mass spectrometry

2018 ◽  
Vol 213 ◽  
pp. 556-561 ◽  
Author(s):  
Alexis Piñeiro-García ◽  
Guillermo González-Alatorre ◽  
Ferdinando Tristan ◽  
Juan C. Fierro-Gonzalez ◽  
Sofía Magdalena Vega-Díaz
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Solid Phase ◽  
Gas Chromatography Mass Spectrometry ◽  
Solid Phase Micro Extraction ◽  
Oxide Coatings ◽  
Simple Preparation ◽  
Reduced Graphene
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