ISSN

0974-4150 (Online)
0974-4169 (Print)


Author(s): Tentu Nageswara Rao, Botsa Parvatamma, Karri Apparao, Jakka Mastan

Email(s): Email ID Not Available

DOI: 10.5958/0974-4150.2017.00059.1   

Address: Tentu Nageswara Rao1*, Botsa Parvatamma2, Karri Apparao1, Jakka Mastan1
1Department of Chemistry, Krishna University, Machilipatnam, Andhra Pradesh, India.
2Department of Organic Chemistry, Gayathri PG College, Vizianagaram, Andhra Pradesh, India.
*Corresponding Author

Published In:   Volume - 10,      Issue - 3,     Year - 2017


ABSTRACT:
A simple and inexpensive method was developed using solid-phase extraction, together with gas chromatographic method and high performance liquid chromatographic method for determination of chlorpyrifos and its metabolite O,O-diethyl triphosphate residues in green apples. The evaluated parameters include the extracts by silica gel packed column using methanol and water solvent mixture (90:10) and ethyl acetate solvents. The method was validated using green apple fruit samples spiked with chlorpyrifos and its metabolite (O,O-diethyl triphosphate) at different fortification levels (0.01 and 0.1 mg/kg). Average recoveries (using each concentration six replicates) of range 86-95%. The calibration solutions concentration in the range 0.01-5.0 mg/L and limit of detection (LOD) and limit of quantification (LOQ) were 0.003mg/kg and 0.01mg/kg respectively. Finally the green apple fruit residue samples were analyzed by GC and HPLC.


Cite this article:
Tentu Nageswara Rao, Botsa Parvatamma, Karri Apparao, Jakka Mastan. Evaluation of Residues of Chlorpyrifos and its metabolite in green apples. Asian J. Research Chem. 2017; 10(3):349-353. doi: 10.5958/0974-4150.2017.00059.1


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