see NBS publications
Natl. Bureau of Standards (SRM 1567), Washington, USA suspension in methanol; 10 yg standard 9 X 104
remarks - Somewhat surprisingly, this spectrum is more similar to that of cellulose (Spectrum A.l) than that of amylose (Spectrum A.2). No explanation for this finding can be given yet. In addition, relatively weak protein signals appear at m/z 34, 48, 92.
120 140 m/z
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