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Journal of Applied Sciences

Year: 2009 | Volume: 9 | Issue: 5 | Page No.: 973-977
DOI: 10.3923/jas.2009.973.977

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Authors


S. Islam

Country: Japan

M.S. Hossain

Country: Bangladesh

N. Nahar

Country: Bangladesh

M. Mosihuzzaman

Country: Bangladesh

M.I.R. Mamun

Country: Bangladesh

Keywords


  • HPLC
  • recovery
  • maximum residue limits
  • eggplant
  • Pesticide residues
Research Article

Application of High Performance Liquid Chromatography to the Analysis of Pesticide Residues in Eggplants

S. Islam, M.S. Hossain, N. Nahar, M. Mosihuzzaman and M.I.R. Mamun
A reverse phase high performance liquid chromatographic method with an acetonitrile-water mobile phase gradient and UV/Visible detection is described for the determination of three pesticides, frequently used in agriculture, in eggplant samples. The samples were sprayed with three pesticides namely, Diazinon, Malathion, Sumithion at three different doses and were harvested at two different Pre-Harvest Interval (PHI) of days 1 and 5 after the application of the pesticides. Sample preparation involved extraction with ethyl acetate and clean up was accomplished by solid-phase extraction using florisil columns. Calibration curves that were constructed for the analytes with matrix matching followed linear relationships with good correlation coefficients (R2>0.990). The average recoveries of the pesticides which were sensitive to matrix effects ranged from 88-120%. Detection limit of less than 0.02 mg kg-1 showed that the method developed can be used to determine the pesticide residues in concentrations lower than the maximum residue limits. In the analysis of residues, samples treated with Diazinon at all doses, residual amounts above Maximum Residue Limit (MRL) (0.02 mg kg-1) were found. Malathion and Sumithion were found above MRL (0.5 mg kg-1) value in only one sample for each pesticide.
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How to cite this article

S. Islam, M.S. Hossain, N. Nahar, M. Mosihuzzaman and M.I.R. Mamun, 2009. Application of High Performance Liquid Chromatography to the Analysis of Pesticide Residues in Eggplants. Journal of Applied Sciences, 9: 973-977.

DOI: 10.3923/jas.2009.973.977

URL: https://scialert.net/abstract/?doi=jas.2009.973.977

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