Bio-Rad Bio-Beads SM-2 Adsorbents - Manual (Page 4)

detergents such as deoxycholate, 4-6 NP-40, 7 and emulgen
911. 8-10
Bio-Beads adsorbents have been used to separate
water soluble steroids, 11,12 phenols, 13 drugs, 14,15
pesticides, 16-20 trace organics, 21-23 and rhodamine. 24
Table 2 lists some other general applications of Bio-
Beads adsorbents.
Table 2. Compounds Concentrated or
Separated by Bio-Beads SM Adsorbents
Trace organics Morphine
PAH compounds Methaqualone
Hydrocarbons and PCBs Sulfas
Aminocarb insecticides Free rhodamine
Carbamate insecticides Prostaglandins
Ethyl and methyl parathion Steroids
Metals Bile acids
Carboxylic acids Hormones
Phenolic acids Purines and pyrimidines
Flavonoids Acid dyes
Mycotoxins Naringin and limonin
Proline and hydroxyproline Detergents
3
Table 1. Description of Bio-Beads SM
Adsorbents
Bio-Beads
SM-2
Adsorbent
Chemical nature Polystyrene-divinyl-benzene
Polarity Nonpolar
Dipole moment 0.3 Debye
Average pore diameter 90 Å
(dry beads)
Wet density (g/cc) 1.02
Capacity (Triton ® X-100 0.07
detergent) g/g
Section 2
Product Description
Bio-Beads SM-2 non-polar polystyrene adsorbents
are particularly useful for the adsorption of nonpolar
substances or surface active agents from aqueous
solutions. Holloway used Bio-Beads adsorbents to
remove Triton X-100 detergent.
1 Others have since used
the adsorbent for removing Triton, 2,3 as well as non-ionic
2
LIT195B 6/17/98 11:37 AM Page 2