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Appendix C Matrices
C-6 PerSeptive Biosystems
C
Figure C-9 trans-3-indoleacrylic acid (IAA) Matrix Spectrum
Matrix Applications/Color
Matrix Solution
Concentration
Characteristic
Matrix Ions
(monoisotopic)
Sinapinic acid
(see mass
spectrum on
page C-2)
MW 224.07 Da
Applications:
Peptides
•Proteins
Color of crystals/
solution:
White
NOTE: Matrix
powder may also
contain orange
crystals. Do not use
crystals when
preparing solutions.
10 mg/ml in 70:30
water/acetonitrile
(0.1% TFA final
conc.)
10 mg/ml in 50:50
water/acetonitrile
(0.1% TFA final
conc.)
if sample
contaminated
225.076
224.068
207.066
431.134
CH CHCOOH
OCH
3
OH
CH
3
O
PB100251
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