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Application of graphene nanoplatelets silica composite, prepared based on sol-gel technology, as a novel sorbent in two microextraction techniques

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Year: 2018
COI code: NHSMED01_076
Paper Language: English

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Authors Application of graphene nanoplatelets silica composite, prepared based on sol-gel technology, as a novel sorbent in two microextraction techniques

  Mahmoud Heidari - Department of Occupational Health, School of Health, Guilan University of Medical Sciences, Rasht, Iran
  Abdolrahman Bahrami , - Department of Occupational Health, School of Health, Hamadan University of Medical Sciences, Hamadan, Iran
Ali Reza Ghiasvand - Department of Chemistry, Faculty of Science, Lorestan University, Khoramabad, Iran
  Farshid Ghorbani Shahna - Department of Occupational Health, School of Health, Hamadan University of Medical Sciences, Hamadan, Iran
  Ali Reza Soltanian - Department of Biostatistics and Epidemiology, School of Health, Hamadan University of Medical Sciences, Hamadan, Iran
Seyed Ghavameddin Attari - Department of Occupational Hygiene Engineering, Boroujerd Branch, Islamic Azad University, Boroujerd, Lorestan, Iran.

Abstract:

In this study the application of a novel nano-material composite was investigated in two microextraction techniques of solid phase microextraction and needle trap device in a variety of sampling conditions. The optimum sampling temperature and relative humidity were 10 °C and 20%, respectively for both techniques with two sorbent of graphene/silica composite and polydimethyl siloxane. The two microextraction techniques with the proposed sorbent showed recovery of 95.2% and 94.6% after 7 days. For needle trap device the optimums desorption time and temperature were 3 min at 290 °C and for SPME these measures were 1 and 1.5 min at 240-250 °C for the graphene/silica composite and polydimethyl siloxane, respectively. The relative standard division obtained in inter and intra-techniques comparative studies were 3.3-14.3% and 5.1-25.4% respectively. For four samplers the limit of detection ranged from 0.021-0.25 ng/mL and the limit of quantitation from 0.08-0.75 ng/mL. The results show that graphene/silica composite is an appropriate extraction media for both techniques. Combining an appropriate sorbent with microextraction techniques, and using these in conjunction with a sensitive analytical instrument can introduce a strong method for sampling and analysis of occupational and environmental pollutants in air

Keywords:

Nano-platelets graphene; Sol-gel technology; Needle trap device; Solid phase microextraction; Carbon tetrachloride

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Heidari, Mahmoud; Abdolrahman Bahrami ,; Ali Reza Ghiasvand; Farshid Ghorbani Shahna; Ali Reza Soltanian & Seyed Ghavameddin Attari, 2018, Application of graphene nanoplatelets silica composite, prepared based on sol-gel technology, as a novel sorbent in two microextraction techniques, First National Congress on Nanotechnology in Health Sciences, همدان, دانشگاه علوم پزشكي همدان, https://www.civilica.com/Paper-NHSMED01-NHSMED01_076.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Heidari, Mahmoud; Abdolrahman Bahrami ,; Ali Reza Ghiasvand; Farshid Ghorbani Shahna; Ali Reza Soltanian & Seyed Ghavameddin Attari, 2018)
Second and more: (Heidari; Bahrami ,; Ghiasvand; Ghorbani Shahna; Soltanian & Attari, 2018)
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Type: Medical University
Paper No.: 797
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