𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Chemical ionization mass spectrometry with amines as reactant gases. VII—Amine chemical ionization mass spectrometry of some iridoid and secoiridoid glucosides

✍ Scribed by N. N. Mollova; N. V. Handjieva; S. S. Popov

Publisher
John Wiley and Sons
Year
1989
Tongue
English
Weight
447 KB
Volume
24
Category
Article
ISSN
1076-5174

No coin nor oath required. For personal study only.

✦ Synopsis

The chemical ionization mass spectra of iridoid glucosides of the loganin type and secoiridoid glucosides of the gentiopicroside type were investigated. Triethylamine, diethylamine, ethylenediamine and ammonia were used as reactant gases. The possibilities of establishing the relative molecular masses and the masses of both the sugar residue and the aglycone and some structural and stereochemical features are discussed.

📜 SIMILAR VOLUMES

Chemical ionization mass spectrometry wi
Chemical ionization mass spectrometry with amines as reactant gases. V—Amine chemical ionization mass spectrometry of flavonoid glycosides
✍ N. N. Mollova; V. S. Bankova; S. S. Popov 📂 Article 📅 1987 🏛 John Wiley and Sons 🌐 English ⚖ 472 KB

The chemical ionization mass spectra of flavonoid glycosides (0-glycosides, C-glycosides and acetylated glycosides) have been investigated. Triethylamine, ethylenediamine, diethylamine, methylamine and ammonia were used as reactant gases. The fragmentation mechanism is discussed, and the perspective

Chemical ionization mass spectrometry wi
Chemical ionization mass spectrometry with amines as reactant gases. VI—amine chemical ionization mass spectrometry of monone and saturated valepotriates
✍ N. V. Handjieva; N. N. Mollova; S. S. Popov 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 English ⚖ 334 KB 👁 2 views

The chemical ionization mass spectra of monoene and saturated valepotriates have been investigated. Triethylamine, diethylamine, methylamine and ammonia were used as reactant gases. The application of this technique for investigation of reaction mixtures and tissue cultures is demonstrated.

Ammonia/desorption chemical ionization m
Ammonia/desorption chemical ionization mass spectrometry of some cyclopentane iridoid glucosides
✍ Plamen A. Demirev; Nedjalka Handjieva; Houcine Saadi; Simeon S. Popov; Olga S. R 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 English ⚖ 264 KB

The ammonia/desorption chemical ionization (DCI) mass spectra of nine cyclopentaoe iridoid glucosides were measured. The dependences of the intensities of different peaks on the structures and stereochemistries of the compounds investigated is discussed.

Chemical ionization mass spectrometry of
Chemical ionization mass spectrometry of halomethanes with tetramethylsilane as reagent gas
✍ Oleg S. Chizhov; Valentin I. Kadentsev; Andrei A. Stomakhin 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 English ⚖ 224 KB

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 spectrometry of
Chemical ionization mass spectrometry of halogenoalkanes with tetramethylsilane as reagent gas
✍ Oleg S. Chizhov; Valentin I. Kadentsev; Andrei A. Stomakhin 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 English ⚖ 314 KB

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