African Journal of Agricultural Research Vol. 1 (5), pp. 182-185, December 2006

ISSN 1991- 637X© 2006 Academic Journals

Full Length Research Paper

Determination of residues of deltaméthrin in wheat and potato by HPLC

Rachdi BOUSSAHEL* ¹ , Khadija M. MOUSSAOUI ² , Djamila HARIK ²

¹ H. C. A., Service de Toxicologie, BP 240 Kouba 16050, Algeria.

² Ecole Nationale Polytechnique, El Harrach 16200, Algeria.

*Corresponding author's E-mail: r_boussahel@yahoo.fr.

Accepted 2 November, 2006

Residues of deltamethrin, a pyrethroid  insecticide commonly used to protect stored grains, have been determined in wheat and potato by high -performance liquid chromatography with UV detection at 233 nm after extraction by chloroform and a silica gel  clean-up. Recoveries from fortified samples spiked with 1 ppm of deltamethrin exceeded 75% for both products. The control carried out on imported products showed the presence of this insecticide that sometimes exceeded the maximum limits of residues authorized by the OMS/FAO (0.10 ppm in potatoes and 1.00 in wheat).

Key words: deltamethrin, residues, wheat,  potato, HPLC.