National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
A modified QuEChERS method for simultaneous detection of monocrotophos, deltamethrin, phosphamidon and dichlorovos insecticides in cabbage and cauliflower samples was developed. The detection was accomplished with the use of reverse phase high performance chromatograph (RP-HPLC) coupled with C18 column with UV-VIS detection system. The method employs the primary secondary amine (PSA) sorbent and activated charcoals were used for extraction and clean-up process. The quantification of monocrotophos and deltamethrin was done with an isocratic flow of 1.70 mL min-1 of mobile phase of acetonitrile and water (90:10, v/v) at 220 nm wavelength. The insecticides phosphamidon and dichlorovos was separated with an isocratic flow of 1.50 mL min-1 acetonitrile and water (70:30, v/v) at 210 nm wavelength. The peaks of monocrotophos and deltamethrin were depicted at retention times of 0.76 min and 2.85 min and the peaks of phosphamidon and dichlorovos was found at 1.10 min and 1.37 mins. The recovery percentage found at different levels of 0.05, 0.10, 0.25, 0.50 and 1.00 mg kg-1 levels were above 80 % for all the insecticides.
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