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Trace determination of EDTA from water samples using dispersive liquid–liquid microextraction coupled with HPLC-DAD

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Abstract

Dispersive liquid–liquid microextraction (DLLME) in conjunction with high-performance liquid chromatography-diode array detection (HPLC-DAD) has been applied to the extraction and determination of EDTA in sediments and water samples. The effect of extraction, nature and volume of disperser solvent, pH value of sample solution, extraction time and extraction temperature were investigated. Under the optimal conditions the analytical range of EDTA was from 3.0 to 50.0 μg L−1 with a correlation coefficient of 0.9982 and a detection limit of 1.7 μg L−1. The relative standard deviation (RSD) was less than 5.4% (n = 5), and the recovery values were in the range of 89–95%. The simplicity, high enrichment, high recovery and good repeatability are the main advantages of the method presented. The DLLME-HPLC-DAD method was successfully applied to the analysis of EDTA in aqueous samples.

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Authors and Affiliations

  1. Department of Chemistry, Faculty of Science, Urmia University, P.O. Box 165-5715944931, Urmia, Iran

    Ramin Maleki, Nasim Mohammad Nezhad, Naser Samadi & Khalil Farhadi

  2. Food & Chemical Analysis Research Lab., Jahad-e-Daneshgahi, Urmia, Iran

    Ramin Maleki

Authors
  1. Ramin Maleki
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  2. Nasim Mohammad Nezhad
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  3. Naser Samadi
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  4. Khalil Farhadi
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Correspondence to Khalil Farhadi.

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Maleki, R., Nezhad, N.M., Samadi, N. et al. Trace determination of EDTA from water samples using dispersive liquid–liquid microextraction coupled with HPLC-DAD. Microchim Acta 165, 97–101 (2009). https://doi.org/10.1007/s00604-008-0104-4

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  • DOI: https://doi.org/10.1007/s00604-008-0104-4

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