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Improved Method For The Estimation Of Carbaryl Residues In Various Environmental Samples

Padmarajaiah Nagaraja, Besagarahally L. Bhaskara


A rapid, sensitive and simple spectrophotometric method has been developed for the determination of alkaline hydrolysis product of carbaryl (1-naphthol) using 4-hydroxy anilinium hydrochloride in the presence of copper (II) as a catalyst. The absorbance is measured at 630 nm. Beer’s law is valid over the concentration range of 0.1-2.75μg ml-1 and molar absorptivity found to be 4.56 X 104 l mol-1cm-1. The Sandell’s sensitivity and relative standard deviation were found to be 4.41 ng cm-2 and 0.907 %. The method is successfully employed for the determination of carbaryl in various environmental samples. The results compare favorably with those of official and reported methods.


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  • 中国社会科学院
  • 谷歌学术
  • 打开 J 门
  • 中国知网(CNKI)
  • 引用因子
  • 宇宙IF
  • 电子期刊图书馆
  • 研究期刊索引目录 (DRJI)
  • 秘密搜索引擎实验室
  • ICMJE

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