RESEARCH ARTICLE Vol. 24 (1) April 2012, p. 1303-1309 DETERMINATION OF λ-CYHALOTHRIN IN PALM AND OALM KERNEL OIL USING TANDEM SOLID-PHASE EXTRACTION CARTRIDGES HALIMAH Muhamad ; BADRUL HISYAM Zainudin + ; NOR KARTINI Abu Bakar + FULL TEXT | DOWNLOAD PDF