Novel approach to high-throughput determination of endocrine disruptors using recycled diatomaceous earth as a green sorbent phase for thin-film solid-phase microextraction combined with 96-well plate system

2017 ◽  
Vol 996 ◽  
pp. 29-37 ◽  
Author(s):  
Nicolas Kirschner ◽  
Adriana Neves Dias ◽  
Dilma Budziak ◽  
Cristian Berto da Silveira ◽  
Josias Merib ◽  
...  
Keyword(s):  
Thin Film ◽  
Endocrine Disruptors ◽  
High Throughput ◽  
Solid Phase Microextraction ◽  
Diatomaceous Earth ◽  
Solid Phase ◽  
Sorbent Phase ◽  
Novel Approach ◽  
Plate System

scholarly journals A low-cost approach using diatomaceous earth biosorbent as alternative SPME coating for the determination of PAHs in water samples by GC-MS

2018 ◽  
Author(s):  
Naysla Reinert ◽  
Vieira Camila ◽  
Cristian Silveira ◽  
Dilma Budziak ◽  
Eduardo Carasek
Keyword(s):  
Water Samples ◽  
Solid Phase Microextraction ◽  
Diatomaceous Earth ◽  
Solid Phase ◽  
Low Cost ◽  
Gas Chromatography Mass Spectrometry ◽  
Polycyclic Aromatic ◽  
Repeatability And Reproducibility ◽  
Extraction Phase

In this study, the use of recycled diatomaceous earth as the extraction phase in a the solid phase microextraction (SPME) technique for the determination of polycyclic aromatic hydrocarbons (PAHs) in river water samples, with separation/detection performed by gas chromatography-mass spectrometry (GC-MS), is proposed. The optimized extraction conditions are extraction time 70 min at 80 ºC with no addition of salt. The limits of quantification were close to 0.5 μg L-1 with RSD values lower than 25% (n = 3). The linear working range was 0.5 μg L-1 to 25 μg L-1 for all analytes. The method was applied to samples collected from the Itajaí River (Santa Catarina, Brazil) and the RSD values for repeatability and reproducibility were lower than 15% and 17%, respectively. The efficiency of the recycled diatomaceous earth fiber was compared with that of commercial fibers and good results were obtained, confirming that this is a promising option for use as the extraction phase in SPME.

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