The molecular weights and complete sugar sequences have been determined in saponins carrying 3 to 8 free sugars. The results are in agreement with parallel chemical and instrumental analyses of the triterpenoid saponins derived from Gleditsia japonica. The capacity and limitations of field desorption mass spectrometry in structural elucidation of substituted oligoglycosides are described.

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2059that generation of 2p core holes occws by processes other than emission of the ESCA '2p electrons. This could depend on other fadors not related to the chemical state of the compound like the state of subdivision of the sample. Thus, the CU 2pfAuger ratio would be of dubious value though the LMVfLVV ratio should be unaffected. Finally, no complications arise in the Auger spectra because of the use of nonmonochromatic X radiation. Registry No.

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