Abstract
Cypermethrin, chlorpyrifos and imidacloprid residues were determined in different vegetables. During 2013, samples were collected from different six major vegetable markets from Lahore. Ethyl acetate was used for extraction, whattman fluted filter and charcoal was used for cleaning procedure. High performance thin layer chromatography was used for detection, as well as quantification of pesticides. Confirmation of results was done by using gas chromatography/mass spectrophotometer. From results, it was concluded that different vegetables contain different concentration of pesticides means adsorption rate is different for each pesticide and vegetable. 79% samples were contaminated with cypermethrin, 70% from imidacloprid and 65% samples were contaminated from chlorpyrifos. Pumpkin, okra, egg plant, cucumber spinach and cabbage were contaminated with pesticides. Peeling of vegetables resulted in less concentration of pesticide.
Highlights
Pests are the main affecting agents of our crops
Results that are obtained from samples analysis through High Performance Thin Layer Chromatography (HPTLC) is given below in appendices
Imidacloprid and cypermethrin residues were studied by Manzoor et al [8], and it is concluded that cypermethrin was present in high rate. 79% vegetables were contaminated from cypermethrin, 70% contamination was of imidacloprid and 65% contamination of chlorpyrifos was determined
Summary
Pests are the main affecting agents of our crops. Pesticides may be of any kind, synthetic or natural chemicals. Due to the attack of pests, different crops destroy. There is no doubt that due to the use of pesticides, production is increased day by day. Due to this reason, the pesticides are come in market on large scale. The pesticides are come in market on large scale Their adverse effects are increasing as their use is increased. Vegetables and fruits are the main source of human diet. Different kinds of elements are present in vegetables that are healthful for human being [1]
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