Characterization of glucuronides by chemical ionization mass spectrometry with ammonia as reagent gas
โ Scribed by Cairns, Thomas.; Siegmund, Emil G.
- Book ID
- 127359805
- Publisher
- American Chemical Society
- Year
- 1982
- Tongue
- English
- Weight
- 740 KB
- Volume
- 54
- Category
- Article
- ISSN
- 0003-2700
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๐ SIMILAR VOLUMES
Cbemical ionization mpss spectra of halomethanes measured using tetramethylsiiaw as reagent gas exhibit three major peaks corresponding to [ M + SiMe,l\*, IM -XI + and (MeSi)lX+ ions (X = C1, Br or I). Dihalomethaws CH,X, form tbe most stable silylated molecular iom, whereas in the mass spectra of t
Chemical ionization mass spectra of halogenoalkanes (RX) obtained using tetramethylsilane as reagent gas show two major peaks corresponding to the cluster ion RX+SiMe3 and alkyl ion R+. Iodides exhibit the highest affinity toward the trimethylsilyl ion and produce the most stable silylated molecular
Gas chromatography-negative chemical ionization mass spectrometry (GC-NCIMS) has been applied to the analysis of 0-and S-glucuronides. The glucuronides were derivatized with pentafluorobenzyl (PFB) bromide and Tri-Sil, and analyzed by GC-NCIMS. All glucuronides gave a large [M-PFBI-ion indicative of