✦ LIBER ✦

Alumatrane revisited: Distribution of oligomeric ions in electron impact ionization, chemical ionization and liquid secondary ion mass spectra

✍ Scribed by Michael G. Bartlett; Scot A. Burns; David A. Bruce; Kenneth L. Busch

Publisher: John Wiley and Sons
Year: 1995
Tongue: English
Weight: 519 KB
Volume: 30
Category: Article
ISSN: 1076-5174
DOI: 10.1002/jms.1190300513

No coin nor oath required. For personal study only.

✦ Synopsis

Oligomeric ions formed from aluminium 2,2',2"-Ntriltriethoxide (alumatrane) are present in electron impact (EI) ionization, chemical ionization (CI), direct-exposure probe chemical ionization (DCI) and liquid secondary ion (LSI) mass spectra. These oligomeric ions are most pronounced in the LSI mass spectrum, extending from monomeric to heptameric ions. The oligomeric ions exist there in the forms [Ma + H] + and [Ma + (AIO), + (Al2O3)J + where the sum of a and b can be as higb as 5. In contrast to previous interpretations of EI and CI results, the LSI mass spectral data do not support a special stability for either the dimeric or tetrameric gas-phase forms of alumatrane. ~~ ~

📜 SIMILAR VOLUMES

Electron Ionization and Positive-ion Che

Electron Ionization and Positive-ion Chemical Ionization Mass Spectra of N-(2-Hydroxyethyl)alkylamides

✍ Zaharie Moldovan; Cristina Maldonado; Josep M. Bayona 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 155 KB 👁 1 views

A family of 12 (7 saturated and 5 unsaturated) long chain fatty acid N-(2-hydroxyethyl)amides has been investigated by electron ionization (EI) and positive-ion chemical ionization (PICI) mass spectrometry. This paper presents the mass spectra and structures of the main ions obtained by EI and PICI

Ion Formation and Fragmentation of Sinap

Ion Formation and Fragmentation of Sinapinic Acid in Electron Ionization, Liquid Secondary Ion and Matrix-assisted Laser Desorption/Ionization Mass Spectrometry

✍ T. Kosaka; T. Kinoshita; M. Takayama 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 329 KB 👁 2 views

The ion formation and fragmentation of sinapinic acid, which is a typical matrix material for matrix-assisted laser desorption/ionization (MALDI), have been investigated by using electron ionization @I), liquid secondary ion (LSI) and MALDI methods. Collisionally activated dissociation (CAD) spectra

Hydroxypolychlorodibenzofurans in techni

Hydroxypolychlorodibenzofurans in technical pentachlorophenol: Electron capture negative ion chemical ionization mass spectra of alkoxypolychlorodibenzofurans

✍ M. Deinzer; D. Griffin; T. Miller; J. Lamberton; P. Freeman; V. Jonas 📂 Article 📅 1982 🏛 John Wiley and Sons 🌐 English ⚖ 508 KB

Electron impact and chemical ionization

Electron impact and chemical ionization mass spectra of bis(methoxycarbonyl) [2.2](2,5)pyridinophanes. Formation of quinolizinium ions under electron impact

✍ Marina Rentzea; Hans-Joachim Hasselbach; Heinz A. Staab 📂 Article 📅 1986 🏛 John Wiley and Sons 🌐 English ⚖ 371 KB

The electron impact, chemical ionization

The electron impact, chemical ionization and fast atom bombardment positive ion mass spectra of 1,2-bis(sulfonyl)methylhydrazines

✍ Giuseppe Giordano; Glenn Peterson; Walter J. McMurray; Shyam Krishnamurthy; Alan 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 English ⚖ 448 KB 👁 2 views

Electron impact and chemical ionization

Electron impact and chemical ionization mass spectra of 2,2-diphenyl-3-arylcyclobutanone oximes. Formation of ion m/z 167

✍ G. Sudhakar Reddy; Grant Gill Smith 📂 Article 📅 1986 🏛 John Wiley and Sons 🌐 English ⚖ 536 KB