3D spongy graphene-modified screen-printed sensors for the voltammetric determination of the narcotic drug codeine

Mohamed, Mona A.; El-Gendy, Dalia M.; Ahmed, Nashaat; Banks, Craig E.; Allam, Nageh K.

doi:10.1016/j.bios.2017.10.020

Cited by 58 publications

(25 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These should be less time-consuming than the extraction methods from human fluids with high recovery yields and accurate analytical methods. 14,24 Various sample preparation techniques have been developed in previous work for the extraction and concentration of methadone and codeine in distinct real samples. These methods include solid-phase extraction (SPE), 1 dispersive solid-phase microextraction (DSPME), 25 dispersive liquid-liquid microextraction (DLLME), 11,19 air-assisted emulsification liquid-liquid microextraction (DES-AAELLME), 12 ultrasound-assisted dispersive liquidliquid microextraction (UA-DLLME), 26 homogenous liquid-liquid microextraction (HLLME), 27 hollow fiber liquid-phase microextraction (HF-LPME), 28 solvent bar microextraction (SBME) 29 and electromembrane extraction (EME).…”

Section: Optimization Of New Sample Preparation Technique For the Detmentioning

confidence: 99%

“…11,12 The opiate alkaloid codeine (3-methyl morphine; COD) is extracted from poppy flowers and is produced from morphine by a methylation reaction, 13 which is extensively used as a cough and pain reliever. 14 COD is an inactive drug yet, by the liver enzyme (CYP2D6) can be demethylated to active morphine, which is considered fatal for its excessive intake and can be addictive for long-term use. The drug spreads throughout the body by its absorption from the gastrointestinal tract and then spreading through intravascular gaps to the body tissues with privilege uptake in liver, spleen, and kidney.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Optimization of New Sample Preparation Technique for the Determination of Methadone and Codeine in Plasma Sample by GC-FID

Jamil

2020

J. Braz. Chem. Soc.

View full text Add to dashboard Cite

A continuous sample drop flow microextraction (CSDF-ME) technique was modified for the pretreatment of plasma samples in the determination of methadone and codeine. The limit of detection and linear range for methadone were 15.0 µg L −1 and 0.1-10.0 mg L −1 , respectively. The detection limit and linear range for codeine were 25.0 µg L −1 and 0.2-15.0 mg L −1 , respectively. The extraction recoveries were 41.6-52.1%, and the enrichment factors ranged from 65 to 80 for codeine and methadone, respectively. Intra-and interday precisions of the technique were calculated for codeine and methadone concentrations of 0.4 mg L −1 and were 4.2-7.6% and 2.5-5.1%, respectively. Also, the accuracy (error%) of method was in the range −10 to +7.5%. The applicability of the CSDF-ME-gas chromatography-flame ionization detector (GC-FID) technique was illustrated by the determination of the mentioned drugs in human plasma. The attained relative recoveries of methadone and codeine in the 90.0-107.5% range demonstrated the excellent capability of the optimized technique for the microextraction of the mentioned drugs from plasma. The CSDF-ME-GC-FID is a rapid, repeatable and very simple technique that requires a low sample amount.

show abstract

Section: Optimization Of New Sample Preparation Technique For the Detmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimization of New Sample Preparation Technique for the Determination of Methadone and Codeine in Plasma Sample by GC-FID

Jamil

2020

J. Braz. Chem. Soc.

View full text Add to dashboard Cite

show abstract

“…Several methods have been developed to detect UA, such as spectrophoto‐metric method, surface plasmon resonance, capillary electrophoresis and electrochemical methods. Among them, electrochemical methods of analysis have shown to be accurate, sensitive and cost‐effective so that it will be adopted by the present study. Here, we demonstrate a facile electrochemical approach which can directly deposit covalent bonded Graphene/Neutral Red composite on GCE surface in one step.…”

Section: Figurementioning

confidence: 99%

Covalent Bonded Graphene/Neutral Red Nanocomposite Prepared by One‐step Electrochemical Method and its Electrocatalytic Properties Toward Uric Acid

Liu

2018

Electroanalysis

View full text Add to dashboard Cite

A nanocomposite Graphene/Neutral Red (GNR) was fabricated via a facile electrochemical method by reducing graphene oxide (GO) and covalent bonding with NR on glassy carbon electrode (GCE) in one step. The bond between NR and graphene was characterized and demonstrated by X‐Ray Diffraction (XRD), X‐ray Photoelectron Spectroscopy (XPS), UV‐vis, Fourier Transform Infrared (FT‐IR). Electrochemical data revealed that the GNR resulted in a sensitivity enhancement of uric acid (UA) oxidation and CV curve shown that the catalytic oxidation current is linearly dependent on UA concentration in the range of 0.5–50 μM and 50 μM−2 mM with a detection limit of 0.076 μM (S/N=3). The existing ions and physiological interferents were tested and they were nearly negligible or have a very small influence. Moreover, 2 weeks stability was obtained. By compared with other UA sensor, the present method is simple than previous report and the performance is better.

show abstract

“…However, they are limited by the low cyclability due to the structural degradation of the electrodes during the faradaic reactions. 6 To this end, carbonaceous materials loaded with metal oxides or polymers are widely investigated as alternatives, [7][8][9] including carbon nanotubes (CNTs), activated carbons (AC), graphite, graphene oxide, and graphene. These materials have been actively used due to their advantages, including ease of fabrication and workability under a wide temperature range.…”

Section: Introductionmentioning

confidence: 99%

Black titania nanotubes/spongy graphene nanocomposites for high-performance supercapacitors

2019

Self Cite

View full text Add to dashboard Cite

show abstract

3D spongy graphene-modified screen-printed sensors for the voltammetric determination of the narcotic drug codeine

Cited by 58 publications

References 36 publications

Optimization of New Sample Preparation Technique for the Determination of Methadone and Codeine in Plasma Sample by GC-FID

Optimization of New Sample Preparation Technique for the Determination of Methadone and Codeine in Plasma Sample by GC-FID

Covalent Bonded Graphene/Neutral Red Nanocomposite Prepared by One‐step Electrochemical Method and its Electrocatalytic Properties Toward Uric Acid

Black titania nanotubes/spongy graphene nanocomposites for high-performance supercapacitors

Contact Info

Product

Resources

About