US EPA

7458822 

Journal Article 

Effect of ozonation treatment on methomyl, oxamyl and carbosulfan residues removal in tomato juice 

Al-Dabbas, MM; Shaderma, AM; Al-Antary, TM 

2014 

1 

Life Science Journal
ISSN: 1097-8135 

11 

2 

68-73 

English 

The effect of ozonation treatment for 3, 5, 10, 15 and 30 min at concentration of 0.4 ppm on methomyl, oxamyl and carbosulfan pesticides residues removal in spiked tomato juice was studied. In our previous work on monitoring of carbamate pesticides residues in tomato juice, we found that methomyl residues was the most prominent residues, while oxamyl and carbosulfan residues were not detected in any of the studied tomato juice samples. Ozonation of spiked tomato juice samples at different concentration levels of methomyl, oxamyl and carbosulfan was found to be an effective treatment in removal of carbamate pesticides residues. Complete removal of carbosulfan and oxamyl pesticide from spiked tomato juice was achieved after 15 and 30 min of ozonation, respectively, regardless of the spiked concentrations studied. Removal percentage of methomyl, oxamyl and carbosulfan pesticide residues from spiked tomato juice samples was highly affected by residues initial concentration and ozonation time. 

Carbamates; Carbosulfan; GC-NPD; Methomyl; Oxamyl; Ozonation; Pesticide residues; Tomato juice