Chemical Details Sample Origin

SAMPLE PREP./SIZE PYROL. CONDITIONS TOTAL ION COUNTS

TEICHURONIC ACID (from Baeillus subtilis)

poly[(l-<-4)CGlcAct,e(l-*3)£GalNAca,g]; see insert in spectrum gift from Dr. J.T.M. Wouters, Lab. of Microbiology, Univ. of Amsterdam, The Netherlands suspension in PBS buffer; 10 yg standard

2 X 105

REMARKS - Sample prepared following ref. 172. This spectrum shows a marked decrease in intensity at m/z 83, 96, 109 and 125 and an increase at m/z 102 with respect to Spectrum A.19. The identities of these fragments have not yet been established. Peaks at m/z 36, 38 represent HC1+' (PBS buffer).

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