01250naa a2200253 a 450000100080000000500110000800800410001910000280006024501340008826000090022252005000023165000140073165000110074565000240075665300310078065300220081165300140083365300180084765300130086565300130087870000190089170000240091077300620093410153502015-08-13       2006    bl uuuu     u00u1 u    #d1 aQUEIROZ, S. C. do N. de  aNovos sorventes baseados em Poli(Metiloctilsiloxano) sobre sílica para uso em extração em fase sólida.h[electronic resource]  c2006  aThis paper presents an easy and practical procedure to obtain silica-based C-8 type sorbents for use in solid-phase extraction. The materials are prepared by depositing poly(methyloctylsiloxane), PMOS, on the silica support. Two different treatments for immobilization were used: thermal treatment or gamma irradiation. Suitable recoveries were obtained after pre-concentration of dilute solutions, at the ng/L level, of a mixture of pesticides, indicating the good performance of the materials.  aPesticida  aSilica  aTratamento Térmico  aExtração em fase sólida  aIrradiação gama  aPolímero  aProcedimentos  aSorvente  aTécnica1 aMELO, L. F. C.1 aJARDIM, I. C. S. F.  tQuímica Nova, São Paulogv. 29, n. 4, p. 637-640, 2006.