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Determination of Active Ingredients in Pesticide Formulations by Gas Chromatography with an Electron Capture Detector
Kin, Chai Mee1, Huat, Tan Guan2, Kumari, Asha3.
A fast, reliable and effective method for direct determination of two active ingredients namely Chlorpyrifos, and Quinalphos in two pesticide formulations has been established by using Gas Chromatography - Electron Capture Detector (GC-ECD) with the internal standard method. A pure standard solution spiked with internal standard in methanol was sonicated to homogenise the solutions. 2 µL volume of a standard solution was injected. A six point calibration curve that demonstrated a linear range was established for each target compound. The concentration of active ingredients in pesticide formulations was calculated from peak area values at a retention time interpolated in a calibration graph was prepared. Analytical results obtained 36.91 ± 0.52 % of Chlorpyrifos and 10.59 ± 1.07 % of Quilnalphos were within specification for both commercial pesticide formulations.
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Indexation |
Indexed by |
MyJurnal (2019) |
H-Index
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0 |
Immediacy Index
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0.000 |
Rank |
0 |
Indexed by |
Scopus (SCImago Journal Rankings 2016) |
Impact Factor
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- |
Rank |
Q4 (Multidisciplinary) |
Additional Information |
0.108 (SJR) |
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