Repository of Research and Investigative Information

Repository of Research and Investigative Information

Larestan University of Medical Sciences

Determination of halogenated hydrocarbons in urine samples using a needle trap device packed with Ni/Zn-BTC bi-MMOF via the dynamic headspace method

(2021) Determination of halogenated hydrocarbons in urine samples using a needle trap device packed with Ni/Zn-BTC bi-MMOF via the dynamic headspace method. Rsc Advances. pp. 21537-21547.

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Abstract

In this study, a nickel/zinc-BTC bi-metallic metal-organic framework (bi-MMOF) was employed as a new and efficient adsorbent in a needle trap device (NTD) for headspace (HS) sampling, extraction and analysis of halogenated hydrocarbons (trichloroethylene, tetrachloroethylene, chloroform, and tetrachloroethylene) from spiked and real urine samples. Characterization of the prepared adsorbent was accomplished by FT-IR, PXRD, EDX, elemental mapping, and FE-SEM techniques. According to experimental results, the optimal temperature and extraction time, salt content, temperature and desorption time of the response surface methodology (RSM) and Box-Behnken design (BBD) were determined to be 56 degrees C and 30 min, 5.5, 350 degrees C and 8 min for the studied halogenated hydrocarbons, respectively. The calculated values of detection limit and quantitation limit parameters were in the range of 1.02-1.10 and 2.01-2.4.0 ng L-1, respectively. Moreover, intermediate precision and repeatability of the method were in the range of 4.90-8.20 and 1.50-4.80, respectively. The recovery percentages of analytes were obtained to be in the range of 95.0-97.0 10 days after the sampling and storage at 4 degrees C. This study showed that the proposed HS-NTD:Ni/Zn-BTC method coupled with a GC-FID can be employed as a simple, fast, and sensitive procedure for non-metabolized halogenated hydrocarbons from urine samples in biological monitoring.

Item Type: Article
Keywords: solid-phase microextraction polycyclic aromatic-hydrocarbons metal-organic frameworks trichloroethylene fiber perchloroethylene composite exposure solvents sorbent Chemistry
Divisions: Education Vice-Chancellor Department > Faculty of Health > Department of Occupational Health
Page Range: pp. 21537-21547
Journal or Publication Title: Rsc Advances
Journal Index: ISI
Volume: 11
Number: 35
Identification Number: https://doi.org/10.1039/d1ra03227e
Depositing User: مهندس مهدی شریفی
URI: http://eprints.larums.ac.ir/id/eprint/366

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