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Fourier transform infrared spectroscopic determination of cypermethrin and deltamethrin in emulsifiable concentrate formulations.

Authors
Type
Published Article
Journal
Talanta
0039-9140
Publisher
Elsevier
Publication Date
Volume
44
Issue
11
Pages
2075–2079
Identifiers
PMID: 18966955
Source
Medline
License
Unknown

Abstract

Fourier tranform infrared (FT-IR) spectroscopic method has been developed for determination of cypermethrin and deltamethrin in emulsifiable concentrate formulations. The known concentration of formulation was subjected to preparative thin layer chromatography and the active ingradient zone was scrapped from the plate. Pyrethroids were eluted from the adsorbent with chloroform and estimated by measuring the ester carbonyl absorption band at 1749 cm(-1) in cypermethrin and at 1743 cm(-1) in deltamethrin using base line technique. Recoveries of cypermethrin and deltamethrin from commercial and laboratory prepared formulations were 90 to 97% in both the cases. The validity of FT-IR method was confirmed by comparing the results with standard HPLC method.

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