... and 2 , 4- dibromophenol (2 , 4- DBP) are thetarget determinants, and 2 , 4- dibromophenol is used as an internal standard. Soil samples are sieved through a 2 mm sieve and stored at 4 C. A 5 g soil subsample ... Chlorophenols and Total Chlorophenols in Soil Using HPLC1. Readily Extractable ChlorophenolsIn this study, 2 , 4- dichlorophenol (2 , 4- DCP), 2 ,4, 6-trichlorophenol (2 ,4, 6- TCP), pentachlorophenol (PCP), and ... Solid phase extraction and determination of lead in soil and water samples using octadecyl silicamembrane disks modified by bis[1-hydroxy-9,10-anthraquinone-2-methyl]sul-fide and flame atomic absorption...