Journal
FOOD CHEMISTRY
Volume 373, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2021.131442
Keywords
Tandem electromembrane extraction; Cr(VI); Food samples; Fish Milk powder; Vegetable
Funding
- Research Affairs of Shahid Beheshti University
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In this study, electromembrane extraction (EME) combined with micro-EME (mu-EME) was employed for the selective extraction of Cr(VI) from food samples. The method showed good extraction recovery and provided a wide linear range and low detection limit.
In this study, electromembrane extraction (EME) combined with micro-EME (mu-EME) was used for the selective extraction of Cr(VI) from food samples (milk powder, Ocimum basilicum, and fish samples). Electrothermal atomic absorption spectrometry was used for the quantification of Cr(VI). Under the optimized extraction conditions, the extraction recovery of Cr(VI) was 73.7%. This proposed method provided a linear range from 0.01 to 5.0 ng/mL and the limit of detection (LOD) and limit of quantification (LOQ) were 0.003 and 0.010 ng/mL. The %RSD (n = 5) was in the range of 11.2-11.8% at 0.05, 1.0 and 2.5 ng/mL of Cr(VI), and the enrichment factor was 584. The accuracy of the method was evaluated by analysis of SRM 2700 as a certified reference material (CRM) and result was in good agreement with the certified value.
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