@article{beigi_imani_payehghadr_hosseini_2011,  title={SPE-HPLC method for determination of ketoconazole and clotrimazole residues in cow's milk},  volume={22},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532011000900009},  DOI={10.1590/S0103-50532011000900009},  number={9},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Beigi, Farzaneh Ahmad Khan and Imani, Mohammad and Payehghadr, Mahmood and Hosseini, Hedayat},  year={2011},  month={Sep},  pages={1679–1685} }