| Literature DB >> 8153627 |
C L Brummel1, I N Lee, Y Zhou, S J Benkovic, N Winograd.
Abstract
The molecular weights of femtomole quantities of small peptides attached to polystyrene beads have been determined with imaging time-of-flight secondary ion mass spectrometry. The analysis is made possible by the selective clipping of the bond linking the peptide to a bead with trifluoroacetic acid vapor before the secondary ion mass spectrometry assay. The approach can be applied to large numbers of 30- to 60-micrometer polystyrene beads for the direct characterization of massive combinatorial libraries.Entities:
Mesh:
Substances:
Year: 1994 PMID: 8153627 DOI: 10.1126/science.8153627
Source DB: PubMed Journal: Science ISSN: 0036-8075 Impact factor: 47.728