A novel needle trap device with single wall carbon nanotubes sol–gel sorbent packed for sampling and analysis of volatile organohalogen compounds in air

Heidari, Mahmoud; Bahrami, Abdolrahman; Ghiasvand, Alireza; Shahna, Farshid Ghorbani; Soltanian, Ali Reza

doi:10.1016/j.talanta.2012.09.032

Cited by 42 publications

(15 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Owing to their exceptional properties such as large surface area, aromatic layer structure and porosity, carbon materials have attracted interest in SPME. Recently, some novel carbon materials were favored by researchers such as graphene [13], carbon nanotubes [14], carbon monolith [15], pencil lead [16,17]. Unfortunately, the achievement of these carbon materials is difficult and costly.…”

Section: Introductionmentioning

confidence: 99%

A Facile Solid-Phase Micro-Extraction Fiber Based on Pine Needles Biochar Coating for Extraction of Polychlorinated Biphenyls from Water Samples

Chang

Wang

et al. 2016

Chromatographia

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

A Facile Solid-Phase Micro-Extraction Fiber Based on Pine Needles Biochar Coating for Extraction of Polychlorinated Biphenyls from Water Samples

Chang

Wang

et al. 2016

Chromatographia

View full text Add to dashboard Cite

“…This technique has some advantages such as high recovery, low detection limit and short extraction time . In other studies, SWCNT was used for the analysis of halogenated VOCs in air samples but there is no report of combining active‐NTD for the analysis of xylene isomers in aqueous media with this sorbent.…”

Section: Introductionmentioning

confidence: 99%

Analysis of xylene in aqueous media using needle‐trap microextraction with a carbon nanotube sorbent

Zeverdegani

Bahrami

Rismanchian

2014

J of Separation Science

Self Cite

View full text Add to dashboard Cite

This paper describes a new extraction technique with needles and a sorbent based on carbon nanotubes to analyze trace amounts of three isomers of xylenes in aqueous samples. In this research, results have been compared with one commercial sorbent. The synthesized sorbent was prepared using sol-gel technology and was packed into 20 gauge needles, and the same size needle was used for packing the commercial sorbent. In the extraction process, a purge and trap sampling methodology is developed, so purging and trapping cycles were performed by a sampling pump. Optimized conditions for standard xylene samples have been obtained, and eight urine samples from workers that were exposed to xylene in the workplace were collected and analyzed. Experimental parameters such as limits of detection and quantification were investigated, and these two parameters were <1 μg/L.

show abstract

“…The method was characterized by good repeatability (RSD less than 4.4%) and detection limits (0.1–3 ng/mL) . Heidari et al described an application of a newly synthesized silanated nanomaterial as a sorbent inside an NTD for sampling and analysis of volatile organohalogen compounds in air.…”

Section: Introductionmentioning

confidence: 99%

Needle‐trap device for the sampling and determination of chlorinated volatile compounds

Dobrzyńska

Buszewski

2013

J of Separation Science

View full text Add to dashboard Cite

A needle-trap device, with immobilized sorbent inside the syringe, coupled with GC-MS was applied for air sampling and determination of chlorinated volatile organic compounds such as dichloromethane, trichloromethane, and tetrachloromethane. The application of a needle trap packed with combination of three sorbents including Tenax TA, Carbopack X, and Carboxen 1000 resulted in detection limits of few pg for chlorinated volatile compounds and recoveries of 99.2-102.8%. The extraction and desorption parameters were optimized within the study. As a result, the precision determined as RSD was equal to 5.05 and 3.03 and 6.52% for dichloromethane, trichloromethane, and tetrachloromethane, respectively. The storage time for chlorinated compounds up to 48 h and reusability of the needle-trap device were verified. The obtained results have proved the ability of needle traps to compete with other solventless sampling and sample preparation extraction techniques.

show abstract

A novel needle trap device with single wall carbon nanotubes sol–gel sorbent packed for sampling and analysis of volatile organohalogen compounds in air

Cited by 42 publications

References 35 publications

A Facile Solid-Phase Micro-Extraction Fiber Based on Pine Needles Biochar Coating for Extraction of Polychlorinated Biphenyls from Water Samples

A Facile Solid-Phase Micro-Extraction Fiber Based on Pine Needles Biochar Coating for Extraction of Polychlorinated Biphenyls from Water Samples

Analysis of xylene in aqueous media using needle‐trap microextraction with a carbon nanotube sorbent

Needle‐trap device for the sampling and determination of chlorinated volatile compounds

Contact Info

Product

Resources

About