Counterimmunoelectrophoresis for detection of microbial antigens: increased sensitivity with dextran-containing gels.
The addition of 4% dextran with a mean molecular weight of 70,000 to counterimmunoelectrophoresis gels enhanced the clarity of precipitin lines and increased the sensitivity of the procedure two- to fourfold with a variety of microbial antigens.
D000942:Antigens, Bacterial / Q000032:analysis*; D003378:Counterimmunoelectrophoresis / Q000379:methods*; D003911:Dextrans; D005782:Gels; D007122:Immunoelectrophoresis / Q000379:methods*; D008828:Microbiological Techniques; D011234:Precipitins
D000942:Antigens, Bacterial; D003911:Dextrans; D005782:Gels; D011234:Precipitins