نتایج جستجو برای: pesticide residue
تعداد نتایج: 61939 فیلتر نتایج به سال:
Pesticides are one of the major inputs used for increasing agricultural productivity of crops. The pesticide residues, left to variable extent in the food materials after harvesting, are beyond the control of consumer and have deleterious effect on human health. The presence of pesticide residues is a major bottleneck in the international trade of food commodities. The localization of pesticide...
Soil drying and rewetting may alter the release and availability of aged pesticide residues in soils. A laboratory experiment was conducted to evaluate the influence of soil drying and wetting on the release of pesticide residues. Soil containing environmentally long-term aged (9-17 years) (14) C-labeled residues of the herbicides ethidimuron (ETD) and methabenzthiazuron (MBT) and the fungicide...
A new method for specific antibody production was developed using antibody (Ab)-pesticide complex as a unique immunogen. Parathion (PA) was the targeted pesticide, and rabbit polyclonal antibody (Pab) and mouse monoclonal antibody (Mab) were used as carrier proteins. The Ab-PA complexes were generated by conjugating the two antibodies with an excessive dosage of PA. It was shown that the sensit...
background: paraquat dichloride is a highly toxic herbicide which is still used in many developing countries. african cat fish (clarias gariepinus) is a commercially important species in many countries and was selected assess accumulation and elimination of paraquat dichloride in its tissues. methods: groups of ten fish with equal lengths and weights were exposed to varying concentrations of pa...
Pesticides are used globally for enhancing crop yields. However, their excessive use/misuse, especially in the developing countries, results in widespread food and environmental contamination. Therefore current methods such as gas chromatography and high-performance liquid chromatography have been used successfully, with great sensitivity and reliability, for analysis of many pesticides. Howeve...
Objective: Pesticides are used worldwide. They are applied during the growing season and part of the amount may remain in or on treated crop. Pesticides can drift to nearby areas and contaminate crops that were not treated. The MRLs are the maximum amount of a pesticide permitted in or on food (& feed), expressed in mg/kg or ppm and always defined for the active substance – crop combination. MR...
Pesticides are used to control fruit flies and other potential crop pests, particularly mango in Burkina Faso. a health hazard for users consumers major constraint the export commercialization of mangoes. The objective this study was evaluate phytosanitary practices orchards pesticide residue levels four varieties fresh dried mangoes (Amelie, Brooks, Kents Lippens) produced localities Faso orde...
Man depends heavily on pesticides to boost his agricultural productions. This study aimed at carrying out a risk assessment of pesticide residues in samples beans stored and sold Wukari Town, Nigeria. Different were collected randomly from different market points within Wukari, Rafin kada Idofi. The residue analysis was carried using GC/MS after sample extraction, filtration Concentration. mean...
Purpose: To assess the levels of pesticide residues in commonly used vegetables Vietnam as a reference for future monitoring.
 Methods: A total 180 samples six different fresh including watercress, mustard green, choy sum, daikon, okra, and yam were analyzed from Mekong Delta, Vietnam. Ten popular pesticides evaluated using liquid chromatography-tandem mass spectrometry (LC-MS/MS) after ex...
In this study, we aimed to analyze changes in the residual levels of buprofezin during milling, washing, cooking, and processing rice make porridge, cakes, cookies. The pesticide residue were analyzed using high-performance liquid chromatograph with UV detector. level brown was 21.8 mg/kg, after that polished 1.73 elimination 92.1% residue. rate reduction washing 21.6-57.3%, decreased by 27.4-6...
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