Introduction (cont.)
TheUltra IBD (intrinsically base-deactivated) column is
particularly effective for retaining and resolving complex
mixtures of nucleotides, nucleosides, and purine and
pyrimidine bases. The unique stationaryphase of theUltra
IBD is composed of a polar groupwithin, or intrinsic to, an
alkyl chain. The polar groupgives extra retention for
many polar analytes aswell as unique selectivity, a very
high level of base deactivation, and compatibilitywith
highly aqueousmobile phases. TheUltra IBD is ideal for
LC/MS because it can often resolve acidic, basic,
zwitterionic and/or neutral compounds in a single analysis
using simplemobile phases.
