Abstract
A simple rapid and accurate UV-spectroscopic method have been developed for determination of tetramethrin in presence of piperonyl butoxide, which are present in LicidR, a newly introduced pharmaceutical drug in Egypt used as antilice, and antiscopis. The method is applicable in the concentration range of 1–12 μg.ml−1 and 1–50 μg.ml−1 for tetramethrin and piperonylbutoxide respectively. Average recoveries for tetramethrin and piperonyl butoxide in LicidR spray and LicidR lotion are 98.14 ± 0.3 – 103.88 ± 1.88 (Tetra), 103.78 ± 1.23 (piperonyl) and 100.62 ± 0.89 – 100.94 ± 1.10 (Tetra), 102.38 ± 1.02 (piperonyl) for the spray and lotion, respectively.