A New Extractive Spectrophotometric Method for the Determination of Oxydemeton methyl in Relation to its Environmental and Toxicological Analysis

Authors

  • D. K. Sharma
  • Rajinder Kashyap
  • Naresh K. Verma
  • Nisha Sharma

DOI:

https://doi.org/10.37591/rrjot.v2i2.1277

Abstract

In view of the wide agricultural use of oxydemeton methyl insecticide and its associated toxic effects, it has been determined in the soil, water and foodstuffs to assess its environmental relevance. A new, simple and sensitive extractive spectrophotometric method has been developed for the purpose. It is based on microwave-assisted alkaline hydrolysis of insecticide to form 2-ethylsulfinyl-ethyl mercaptan and transformation of the latter through reaction with carbon disulphide and nickel(II) acetate into methyl isobutyl ketone extractable yellow nickel(II) trithiocarbonate complex showing maximum absorbance  at378 nm. The colour is stable for 6 h and Beer’s law is obeyed in the concentration range 2.46–49.2 µg mL–1. The oxydemeton methyl in a commercial formulation, residues on water, foodstuffs and on five Indian soils of different soil characteristics has been determined by the proposed method. The leaching behavior in terms of ground water umbiquity scores (GUS) for oxydemeton methyl has the value from 0.67 to 0.82 classifying it as a non leacher.

 

Keywords:  Oxydemeton methyl, formulation analysis, spectrophotometry, soil-adsorption study

Downloads

Published

2019-04-05

Issue

Vol. 2 No. 2 (2012)

Section

Research Article

License

Declaration and Copyright Transfer Form

(to be completed by authors)

I/ We, the undersigned author(s) of the submitted manuscript, hereby declare, that the above manuscript which is submitted for publication in the STM Journals(s), is not published already in part or whole (except in the form of abstract) in any journal or magazine for private or public circulation, and, is not under consideration of publication elsewhere.

  • I/We will not withdraw the manuscript after 1 week of submission as I have read the Author Guidelines and will adhere to the guidelines.
  • I/We Author(s ) have niether given nor will give this manuscript elsewhere for publishing after submitting in STM Journal(s).
  • I/ We have read the original version of the manuscript and am/ are responsible for the thought contents embodied in it. The work dealt in the manuscript is my/ our own, and my/ our individual contribution to this work is significant enough to qualify for authorship.
  •  I/We also agree to the authorship of the article in the following order:

Author’s name                                    

 

1. ________________

2. ________________

3. ________________

4. ________________

 

We  Author(s) tick this box and would request you to consider it as our signature as we agree to the terms of this Copyright Notice, which will apply to this submission if and when it is published by this journal.