Manuscript Abstract

DETERMINATION OF IMIDACLOPRID RESIDUES IN RICE FROM VARIOUS DISTRICTS OF PUNJAB USING HIGH PERFORMANCE LIQUID CHROMATOGRAPHY
A. Niaz, R. A. Sial, M. Yaseen, G. A. Mand, M. H. Javed, E. Ahmad, R. Ahmad, M. Rahim

A. Niaz1*, R. A. Sial1, M. Yaseen2, G. A. Mand1, M. H. Javed1, E. Ahmad1, R. Ahmad1 and M. Rahim1

1Pesticide Residue Laboratory, Kala Shah Kaku, Institute of Soil Chemistry and Environmental Sciences, Ayub Agricultural Research Institute, Faisalabad, Pakistan
2Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan

Corresponding Author: abdullahniaz@ymail.com
Page Number(s): 170-176
Published Online First: February 01, 2016
Publication Date: February 01, 2016
ABSTRACT

Rice is Pakistan’s major export crop and injudicious use of several pesticides by rice growers is making it all difficult for exporters to get their shipments clear regarding pesticide residues. In continuation of systematic research for determination of pesticide residues, rice samples were collected from key growers of important rice growing areas of Punjab including Gujranwala, Sialkot, Hafizabad, Narowal, Sheikhupura, Mandi Bahaudin, Pasrur and Jhang. Imidacloprid is a systemic insecticide with seed, foliar and soil uses to control sucking pests. Newly proposed maximum residual limit (MRL) for imidacloprid in rice by European food safety authority is 1.5 µg g-1. High performance liquid chromatography with photo diode array detector was employed for imidacloprid residues analysis. Method validation data showed a recovery percentage of 86±6.12%, 115±3.53%, 108±6.01%, 93±3.53% and 93±3.84% for fortification levels of 0.01, 0.05, 0.1, 0.5 and 1 µg g-1 rice sample, respectively. Residues analysis data showed that most of the randomly selected samples carried imidacloprid residues. Three samples from district Sialkot (1.63, 2.22 and 2.74 µg g-1) while one sample each from Gujranwala (2.63 µg g-1) and Narowal (1.88 µg g-1) exceeded the MRL. Imidacloprid residues were recorded in the range of 0.47 to 2.63 µg g-1, 0.95 to 2.74 µg g-1, < 0.01 to 1.16 µg g-1, 0.43 to 1.88 µg g-1, 0.01 to 0.82 µg g-1, 0.07 to 0.76 µg g-1, <0.01 to 0.14 µg g-1 and <0.01 to 0.1 µg g-1 rice in samples from Gujranwala, Sialkot, Hafizabad, Narowal, Sheikhupura, Mandi Bahaudin, Pasrur and Jhang, respectively. The information would be beneficial for rice exporters. Moreover, extension workers and their field staff should translate to the rice growers the threat their produce would be facing in modern international markets.

Keywords: Imidacloprid Residues, Rice, Punjab, Pakistan, HPLC
Open Access: This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license ( https://creativecommons.org/licenses/by/4.0/).


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