Repository of Research and Investigative Information

Repository of Research and Investigative Information

Ilam University of Medical Sciences

DEVELOPMENT OF A NEEDLE TRAP DEVICE PACKED WITH HKUST-1 SORBENT FOR SAMPLING AND ANALYSIS OF BTEX IN AIR

Thu Feb 2 17:57:44 2023

(2022) DEVELOPMENT OF A NEEDLE TRAP DEVICE PACKED WITH HKUST-1 SORBENT FOR SAMPLING AND ANALYSIS OF BTEX IN AIR. Chemistry & Chemical Technology. pp. 314-327. ISSN 1996-4196

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Abstract

In this study, we developed a needle trap device packed with HKUST-1 (Cu-based metal-organic framework) for the sampling and analysis of benzene, toluene, ethylbenzene, and xylene (BTEX) in ambient air for the first time. The HKUST-1 was synthesized via the electrochemical process. Afterwards, the adsorbent was packed into 22 gauge needles. To provide the different concentrations of BTEX, the syringe pump was connected to the glass chamber to inject a specific rate of the BTEX compounds. Design-expert software (version 7) was used to optimize the analytical parameters including breakthrough volume, desorption conditions and sampling conditions. The best desorption conditions were achieved at 548 K for 6 min, and the best sampling conditions were determined at 309 K of sampling temperature and 20 of relative humidity. According to the results, the limit of quantification (LOQ) and limit of detection (LOD) of the developed needle trap device (NTD) were in the range of 0.52-1.41 and 0.16-0.5 mg/m(3), respectively. In addition, the repeatability and reproducibility of the method were calculated to be in the range of 5.5-13.2 and 5.3-12.3 , respectively. The analysis of needles stored in the refrigerator (>277 K) and room temperature (298 K) showed that the NTD can store the BTEX analytes for at least 10 and 6 days, respectively. Our findings indicated that the NTD packed with HKUST-1 sorbent can be used as a trustworthy and useful technique for the determination of BTEX in air.

Item Type: Article
Creators:
CreatorsEmail
Soury, S.UNSPECIFIED
Bahrami, A.UNSPECIFIED
Alizadeh, S.UNSPECIFIED
Shahna, F. G.UNSPECIFIED
Nematollahi, D.UNSPECIFIED
Keywords: air HKUST-1 metal-organic framework electrochemical needle trap device volatile organic compounds solid-phase microextraction metal-organic frameworks gc-ms extraction Chemistry
Divisions:
Page Range: pp. 314-327
Journal or Publication Title: Chemistry & Chemical Technology
Journal Index: ISI
Volume: 16
Number: 2
Identification Number: https://doi.org/10.23939/chcht16.02.314
ISSN: 1996-4196
Depositing User: مهندس مهدی شریفی
URI: http://eprints.medilam.ac.ir/id/eprint/3964

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