Bio-Rad Matrix-Prepared Surfaces - Manual (Page 7)

6 © 2007 Bio-Rad Laboratories, Inc.
Ordering Information
Catalog # Description
C57-30081 ProteinChip SEND ID Arrays, A–H format, 12
C20-10002 ProteinChip Array Forceps, 1 pair
Fig. 4. Clearly visible peptide peaks with the ProteinChip SEND ID array.
Upper panel, shown after on-chip cleanup of a bovine serum albumin (BSA) digest
contaminated with 2 M urea; bottom panel, only matrix peaks are visible when the
same sample is applied to a ProteinChip NP20 array with no cleanup and CHCA
added separately.
1,000 2,000
Relative
intensity
60
40
20
0
m/z
ProteinChip NP20 array with CHCA matrix
30
20
10
0
Relative
intensity
ProteinChip SEND ID array
1,060.46
1,859.01
2,230.97
2,482.0
1,000 2,000