Spectometry molecular

While the molecular masses of expanded [n]pericyclines 82,83,122 can easily be determined by GC-MS analysis, higher dehydrocyclooligomers fail to vaporize sufficiently [7]. Fast atom bombardment mass spectometry (FAB-MS) had to be applied for the characterization of the acetal-protected expanded pericyclinones 123-126 and 176 [39]. Attempts to determine the molecular masses of the... 

A new inexpensive approach is described for mapping molecular structure in polymeric materials which includes the combination of interferometers and Hadamard transform techniques to perform multidimensional spectometry and mapping. 17 refs. 

Schanzer, W., Homing, S., Opfermann, G., and Donike, M. (1996) Gas chromatography/mass spectometry identification of long-term excreted metabolites of the anabolic steroid 4-chloro-l, 2-dehydro-17alpha-methyl-testosterone in humans. Journal of Steroid Biochemistry and Molecular Biology, SI, 363-376. 

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