What is it about?
MOF-545 was used as an adsorbent for the vortex assisted-solid phase extraction of Pb(II) from cereal, beverage and water samples. Additionally amount of lead in solutions was determined by FAAS. The method was successfully verified by analyzing two certified reference materials (BCR-482 Lichen and SPSWW1 Batch 114) and spiked chickpea, bean, wheat, lentil, cherry juice, mineral water, well water and wastewater samples.
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Why is it important?
It is usually very difficult to accurately determine toxic elements in environmental samples because of low concentrations with a complex matrix. Therefore, pre-treatment techniques prior to instrumental analysis are compulsory to improve sensitivity and effectively eliminate matrix interferences from the samples. Developed solid phase extraction-MOF-545 method can be successfully applied for the separation and preconcentration of lead from cereal, beverage and water samples.
Perspectives
This method may be expanded for other toxic metals employing different MOFs.
Dr Selçuk Demir
Recep Tayyip Erdoğan University
Read the Original
This page is a summary of: Zirconium-based highly porous metal-organic framework (MOF-545) as an efficient adsorbent for vortex assisted-solid phase extraction of lead from cereal, beverage and water samples, Food Chemistry, December 2017, Elsevier,
DOI: 10.1016/j.foodchem.2017.06.005.
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