Department of Analytical Chemistry, Faculty of Chemistry, University of Alcalá. Ctra. Madrid-Barcelona Km. 33.600, 28871 Alcalá de Henares, Madrid, Spain.
J Chromatogr A. 2010 Feb 12;1217(7):968-89. doi: 10.1016/j.chroma.2009.10.069. Epub 2009 Oct 31.
Pyrethroids are synthetic pesticides that originated from the modification of natural pyrethrins to improve their biological activity and stability. They are a family of chiral pesticides with a large number of stereoisomers. Enantiomers of synthetic pyretroids present different insecticidal activity, toxicity against aquatic invertebrates and persistence in the environment so the development of rapid and sensitive chiral methods for the determination of different enantiomers is necessary. Several techniques have been employed for this purpose including gas chromatography, high performance liquid chromatography or more recently capillary electrophoresis and sub or supercritical fluid chromatography. A general view on the different chiral separation methods applied to the analysis of pyrethroids and the most important information about these pesticides is provided in this review.
拟除虫菊酯是一类由天然除虫菊素经过化学修饰得到的杀虫剂，以提高其生物活性和稳定性。拟除虫菊酯是一个具有大量手性立体异构体的手性农药家族。合成拟除虫菊酯的对映异构体表现出不同的杀虫活性、对水生无脊椎动物的毒性和在环境中的持久性，因此需要开发快速灵敏的手性方法来测定不同的对映异构体。为此目的，已经采用了几种技术，包括气相色谱法、高效液相色谱法或最近的毛细管电泳法和亚临界或超临界流体色谱法。本文综述了应用于拟除虫菊酯分析的不同手性分离方法，并提供了有关这些杀虫剂的最重要信息。
