Vol. 7, Issue 3 (2019)
Dissipation pattern of chlorantraniliprole in/on cabbage
Author(s): S Preethi, Dr. B Vinothkumar, Dr. K Bhuvaneswari and Dr. M Paramasivam
Abstract: A supervised field trial was conducted to study the dissipation of chlorantraniliprole in cabbage during September 2018 – January 2018. Chlorantraniliprole 18.5 SC @ 10 g a.i. ha-1 and 20 g a.i. ha-1 were sprayed twice at 10 days interval at 50 per cent head formation stage. Samples were collected at 0 (one hour after spraying), 1, 3, 5, 7, 10, 15 and 21 days after the second spray along with control samples. Method was developed with accepted specificity (% RSD < 5), good linearity (R2 = 0.999), recovery (92.58 – 96.35 %) and satisfactory repeatability. The Limit of Detection and Limit of Quantification values for chlorantraniliprole in UHPLC were 0.015 and 0.05 μg g-1, respectively. The mean initial deposit of chlorantraniliprole after the second spray was 0.24 and 0.41 µg g-1 at 10 g a.i. ha-1 and 20 g a.i. ha-1 doses, respectively. Chlorantraniliprole residues reached BDL of 0.05 µg g-1 on 7 and 10 days after application respectively for recommended and double the recommended dose. Dissipation of chlorantraniliprole followed first order reaction kinetics and the calculated half lives were 2.29 to 2.53 days. Decontamination study revealed that 74.64 per cent of chlorantraniliprole residues were removed by boiling the cabbage with water at 100 ºC for 10 min.
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How to cite this article:
S Preethi, Dr. B Vinothkumar, Dr. K Bhuvaneswari, Dr. M Paramasivam. Dissipation pattern of chlorantraniliprole in/on cabbage. Int J Chem Stud 2019;7(3):4791-4795.
