Two simple eco-friendly methods are described for nano-determination of carbendazim (MBC) pesticide in real samples. These methods are based on oxidation of MBC pesticide with Fe (III) ions in acidic medium. The formed Fe(II) ions reacts with potassium ferricyanide to form blue colored product (method A) which can easily be extracted into nonionic surfactant solution of Triton X-114 at cloud point temperature (CPT) of 55°C and MBC determined spectrophotometrically at absorption maximum of 685 nm with apparent molar absorptivity of 2.07x104 L mol-1 cm-1. The Method B is based on the reaction of the formed Fe (II) with 2, 2’-bipyridyl to form a stable orange colored complex which can also be extracted by Triton X-114 at the same CPT and MBC determined spectrophotometrically at absorption maximum of 521 nm with apparent molar absorptivity of 1.83x104 L mol-1 cm-1. Optimization of the experimental parameters was described and interferences study also examined. Under the optimum conditions established, the calibration graphs for MBC were linear in the range of 0.5-13 and 1-20 ng mL-1, giving the detection limits of 0.46 and 0.49 ng mL-1 with enrichment factors of 85.7 and 38.9 fold for method A and B respectively. The average percent recoveries in the real spiked samples were (97.86±1.06%) and (98.66±0.93%), giving a precision in terms of %RSD in the range of 1.25-2.97% and 0.37-1.42% for method A and B respectively. The proposed methods were applied to the determination of MBC in vegetables, orange, and water samples.
Published in | Science Journal of Analytical Chemistry (Volume 4, Issue 3) |
DOI | 10.11648/j.sjac.20160403.13 |
Page(s) | 30-41 |
Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
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Copyright © The Author(s), 2016. Published by Science Publishing Group |
Carbendazim, Vegetables and Waters, Cloud Point Extraction, Visible Spectrophotometry
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APA Style
Zuhair A-A Khammas, Suher Salah Ahmad. (2016). Cloud Point Extraction of Carbendazim Pesticide in Foods and Environmental Matrices Prior to Visible Spectrophotometric Determination. Science Journal of Analytical Chemistry, 4(3), 30-41. https://doi.org/10.11648/j.sjac.20160403.13
ACS Style
Zuhair A-A Khammas; Suher Salah Ahmad. Cloud Point Extraction of Carbendazim Pesticide in Foods and Environmental Matrices Prior to Visible Spectrophotometric Determination. Sci. J. Anal. Chem. 2016, 4(3), 30-41. doi: 10.11648/j.sjac.20160403.13
AMA Style
Zuhair A-A Khammas, Suher Salah Ahmad. Cloud Point Extraction of Carbendazim Pesticide in Foods and Environmental Matrices Prior to Visible Spectrophotometric Determination. Sci J Anal Chem. 2016;4(3):30-41. doi: 10.11648/j.sjac.20160403.13
@article{10.11648/j.sjac.20160403.13, author = {Zuhair A-A Khammas and Suher Salah Ahmad}, title = {Cloud Point Extraction of Carbendazim Pesticide in Foods and Environmental Matrices Prior to Visible Spectrophotometric Determination}, journal = {Science Journal of Analytical Chemistry}, volume = {4}, number = {3}, pages = {30-41}, doi = {10.11648/j.sjac.20160403.13}, url = {https://doi.org/10.11648/j.sjac.20160403.13}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sjac.20160403.13}, abstract = {Two simple eco-friendly methods are described for nano-determination of carbendazim (MBC) pesticide in real samples. These methods are based on oxidation of MBC pesticide with Fe (III) ions in acidic medium. The formed Fe(II) ions reacts with potassium ferricyanide to form blue colored product (method A) which can easily be extracted into nonionic surfactant solution of Triton X-114 at cloud point temperature (CPT) of 55°C and MBC determined spectrophotometrically at absorption maximum of 685 nm with apparent molar absorptivity of 2.07x104 L mol-1 cm-1. The Method B is based on the reaction of the formed Fe (II) with 2, 2’-bipyridyl to form a stable orange colored complex which can also be extracted by Triton X-114 at the same CPT and MBC determined spectrophotometrically at absorption maximum of 521 nm with apparent molar absorptivity of 1.83x104 L mol-1 cm-1. Optimization of the experimental parameters was described and interferences study also examined. Under the optimum conditions established, the calibration graphs for MBC were linear in the range of 0.5-13 and 1-20 ng mL-1, giving the detection limits of 0.46 and 0.49 ng mL-1 with enrichment factors of 85.7 and 38.9 fold for method A and B respectively. The average percent recoveries in the real spiked samples were (97.86±1.06%) and (98.66±0.93%), giving a precision in terms of %RSD in the range of 1.25-2.97% and 0.37-1.42% for method A and B respectively. The proposed methods were applied to the determination of MBC in vegetables, orange, and water samples.}, year = {2016} }
TY - JOUR T1 - Cloud Point Extraction of Carbendazim Pesticide in Foods and Environmental Matrices Prior to Visible Spectrophotometric Determination AU - Zuhair A-A Khammas AU - Suher Salah Ahmad Y1 - 2016/05/23 PY - 2016 N1 - https://doi.org/10.11648/j.sjac.20160403.13 DO - 10.11648/j.sjac.20160403.13 T2 - Science Journal of Analytical Chemistry JF - Science Journal of Analytical Chemistry JO - Science Journal of Analytical Chemistry SP - 30 EP - 41 PB - Science Publishing Group SN - 2376-8053 UR - https://doi.org/10.11648/j.sjac.20160403.13 AB - Two simple eco-friendly methods are described for nano-determination of carbendazim (MBC) pesticide in real samples. These methods are based on oxidation of MBC pesticide with Fe (III) ions in acidic medium. The formed Fe(II) ions reacts with potassium ferricyanide to form blue colored product (method A) which can easily be extracted into nonionic surfactant solution of Triton X-114 at cloud point temperature (CPT) of 55°C and MBC determined spectrophotometrically at absorption maximum of 685 nm with apparent molar absorptivity of 2.07x104 L mol-1 cm-1. The Method B is based on the reaction of the formed Fe (II) with 2, 2’-bipyridyl to form a stable orange colored complex which can also be extracted by Triton X-114 at the same CPT and MBC determined spectrophotometrically at absorption maximum of 521 nm with apparent molar absorptivity of 1.83x104 L mol-1 cm-1. Optimization of the experimental parameters was described and interferences study also examined. Under the optimum conditions established, the calibration graphs for MBC were linear in the range of 0.5-13 and 1-20 ng mL-1, giving the detection limits of 0.46 and 0.49 ng mL-1 with enrichment factors of 85.7 and 38.9 fold for method A and B respectively. The average percent recoveries in the real spiked samples were (97.86±1.06%) and (98.66±0.93%), giving a precision in terms of %RSD in the range of 1.25-2.97% and 0.37-1.42% for method A and B respectively. The proposed methods were applied to the determination of MBC in vegetables, orange, and water samples. VL - 4 IS - 3 ER -