Abstract:Pesticides are designated mixture of substances for extenuating and destroying any group of pests such as insects and vegetation. Pymetrozine [6-methyl-4-[(E)-pyridin-3-ylmethylideneamino]-2, 5-dihydro-1, 2, 4-triazin-3-one] is a pyridine azomethine compound which represents a class of insecticide. A Spectrophotometric method has been developed on the modified Fujiwara reaction for the determination of pymetrozine. Pymetrozine directly reacts with chloroform the 45-500C turns out the violet color in the format… Show more
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