A MASS-SPECTROMETRIC SOLUTION TO THE ADDRESS PROBLEM OF COMBINATORIAL LIBRARIES

被引:133
作者
BRUMMEL, CL [1 ]
LEE, INW [1 ]
ZHOU, Y [1 ]
BENKOVIC, SJ [1 ]
WINOGRAD, N [1 ]
机构
[1] PENN STATE UNIV,DEPT CHEM,152 DAVEY LAB,UNIV PK,PA 16802
关键词
D O I
10.1126/science.8153627
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
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.
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页码:399 / 402
页数:4
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