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SPECTROFLUOROMETRIC DETERMINION OF FENVALERATE RESIDUAL IN TOMOTO FIELDS | ||
| Basrah Journal of Agricultural Sciences | ||
| Article 13, Volume 20, Issue 1, 2007, Pages 197-215 PDF (0 K) | ||
| DOI: 10.33762/bagrs.2007.56522 | ||
| Authors | ||
| I. A. Al; A. S. Jabbar; F. J. M. Al; ; | ||
| Abstract | ||
| Aspectrofluorometric method used for the analysis of fenvalerate residue in samples of soil leaves and tomato fruit after extraction. Percentage recoveries were estimated to be 58. 26, 77 and 72.4 % for soil, leaves and fruits respectively. The variance of coefficient were (1.6 - 12.7), (0.8 – 11.8) and (3.8 – 24.2) respectively. Spray of fenvalerate concentrations 0.5 and 1 m 1/1 for times in 15 day intervals indicated that fenvalerate residue increased in the soil after the 5th spraying time. After 15 days from the 1st spray the residue were 0.699 and 0.75 mg /kg for 0.5 mg/ kg to both concentrations respectively. The residue in the leaves after I st spraying were 1.107 and 1.951 mg/kg while the residue decrease after 5th spraying were 0.584 and 0.701mg/kg to both concentrations respectively. The fenvalerate residue in tomoto fruit reached 2.036 and 8.79 mg/kg after fifteen days the value of residues reached 0.550 and 0.610 mg/kg to the same concentrations respectively. | ||
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