Cyfluthrin (e.g., Dr. Ehrenstorfer GmbH, Augsburg, Germany).
12. Deltamethrin (e.g., Dr. Ehrenstorfer).
13. Cypermethrin (e.g., Dr. Ehrenstorfer).
14. Permethrin (e.g., Dr. Ehrenstorfer).
15. Bioallethrin (e.g., Dr. Ehrenstorfer).
16. Fenvalerat (e.g., Dr. Ehrenstorfer), used as internal standard (ISTD).
17. Dichloromethane (Supra-Solv).
18. Hexane (Supra-Solv).
19. Methanol (Supra-Solv).