Single-walled carbon nanotubes as stationary phase in gas chromatographic separation and determination of argon, carbon dioxide and hydrogen

Safavi, Afsaneh; Maleki, N.; Doroodmand, Mohammad Mahdi

doi:10.1016/j.aca.2010.07.019

Cited by 59 publications

(9 citation statements)

References 38 publications

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“…The preferential growth of palladium nanoparticles at defect sites under controlled conditions can be successfully used for future quantitative and sensing applications. Recently in our group, the CVD synthesized Pd-doped SWCNTs have been used in gas chromatographic separation and determination of the Ar, CO 2 and H 2 mixtures (48).…”

Section: Discussionmentioning

confidence: 99%

Comparative Investigation of Chemical Vapor Deposition of Palladium Nanoparticles on Different Carbon Substrates

Safavi

Maleki

Doroodmand

2012

Fullerenes, Nanotubes and Carbon Nanostructures

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Section: Discussionmentioning

confidence: 99%

Comparative Investigation of Chemical Vapor Deposition of Palladium Nanoparticles on Different Carbon Substrates

Safavi

Maleki

Doroodmand

2012

Fullerenes, Nanotubes and Carbon Nanostructures

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“…Samples of paint thinners, white spirit and Italian Grappa were subsequently analyzed and good separation performances demonstrated. Similarly, a SWCNT packed column for separation of gases was developed by Safavi et al 27 The authors used a 15 cm column containing CNTs and a 5 cm long pre-column containing palladium-doped CNTs for separation of argon, hydrogen and carbon dioxide. They were able to detect the investigated gases at lower ppm levels after thermal conductivity detection and demonstrated the technical applicability of the new columns by quantifying carbon dioxide in gas mixtures at the 50 ppm level via the standard addition method.…”

Section: Nanoparticles Carbon Nanotubes and Fullerenesmentioning

confidence: 99%

Micro- and nanostructures and their application in gas chromatography

Mittermüller

Volmer

2012

Analyst

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This mini-review focuses on the latest developments in the field of micro- and nanostructures in gas chromatography (GC). Significant progress has been made in recent years in designing miniaturized structures, for example, structures based on cyclodextrins. These are now commercially available and thus not the topic of this short review. Rather, we concentrate here on on-going research activities on nanoparticles, micro-electromechanical systems (MEMS) and metal-organic framework (MOF) supports as well as state-of-the-art column geometries, with particular emphasis on lab-on-a-chip columns, which undoubtedly will find their way into regular GC developments in the future.

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“…In recent years, there is a growing interest in the use of nanomaterials (NMs) as stationary phase in chromatographic techniques such as GC, LC, and CE [11][12][13][14]. It is observed that the use of NMs and magnetic NMs as sorbent agents, due to their magnetic and sorption properties, in the sample preparation step has led to the simplicity of process and improves sensitivity [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Determination of diazinon in water and food samples using magnetic solid‐phase extraction coupled with liquid chromatography

Mohammadnia

Heydari

Sohrabi

et al. 2020

Separation Science Plus

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In the present study, a dispersive micro‐solid phase extraction method using magnetic graphene oxide/vancomycin nanocomposite as sorbent coupled with high‐performance liquid chromatography was developed for determining diazinon in water and food samples. The sorbent was characterized by various techniques such as Fourier‐transform infrared spectroscopy, X‐ray diffraction, scanning electron microscopy–energy dispersive spectroscopy, thermal gravimetric analysis, and Brunauer–Emmett–Teller surface area analysis. Influential parameters on the extraction efficiency of diazinon using dispersive micro‐solid phase extraction such as sorbent and its amount, elution solvent and its volume, adsorption and desorption times, and pH of sample solution were investigated and optimized. Under the optimized conditions, method detection limit and limit of quantitation values were 0.001 and 0.003 µg/mL, respectively. Relative recovery data for several real samples were obtained within the range of 85.0–102.0% with a relative standard deviation <7.5%. Intraday and interday relative standard deviation values were <5.2 and <7.5, respectively. The proposed method was successfully applied to quantitative determination of diazinon in several water and food samples.

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Single-walled carbon nanotubes as stationary phase in gas chromatographic separation and determination of argon, carbon dioxide and hydrogen

Cited by 59 publications

References 38 publications

Comparative Investigation of Chemical Vapor Deposition of Palladium Nanoparticles on Different Carbon Substrates

Comparative Investigation of Chemical Vapor Deposition of Palladium Nanoparticles on Different Carbon Substrates

Micro- and nanostructures and their application in gas chromatography

Determination of diazinon in water and food samples using magnetic solid‐phase extraction coupled with liquid chromatography

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