✦ LIBER ✦

Incoherent Production Reactions of Positive and Negative Ions in Matrix-Assisted Laser Desorption/Ionization

✍ Scribed by Bo-Hong Liu; Yuan Tseh Lee; Yi-Sheng Wang

Book ID: 108158508
Publisher: Elsevier Science
Year: 2009
Tongue: English
Weight: 795 KB
Volume: 20
Category: Article
ISSN: 1044-0305
DOI: 10.1016/j.jasms.2009.02.012

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Positive and negative analyte ion yield

Positive and negative analyte ion yield in matrix-assisted laser desorption/ionization revisited

✍ F. Hillenkamp; E. Wäfler; M.C. Jecklin; R. Zenobi 📂 Article 📅 2009 🏛 Elsevier Science 🌐 English ⚖ 630 KB

Positive- and negative-ion matrix-assist

Positive- and negative-ion matrix-assisted laser desorption/ionization mass spectrometry of saccharides

✍ Chunyan Hao; Xiuli Ma; Shiping Fang; Zhiqiang Liu; Shuying Liu; Fengrui Song; Ju 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 122 KB 👁 2 views

## Matrix -assisted laser desorption/ionization (MALDI) mass spectrometry (MS) of oligosaccharides and polysaccharides has been investigated in detail. It is demonstrated that cationized species of oligosaccharides, [MNa] and [MK] , are dominant products under the MALDI condition, and negative ion

Secondary ion–molecule reactions in matr

Secondary ion–molecule reactions in matrix-assisted laser desorption/ionization

✍ R. Knochenmuss; A. Stortelder; K. Breuker; R. Zenobi 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 116 KB 👁 2 views

The matrix suppression effect in matrix-

The matrix suppression effect in matrix-assisted laser desorption/ionization: application to negative ions and further characteristics

✍ Richard Knochenmuss; Volker Karbach; Ursula Wiesli; Kathrin Breuker; Renato Zeno 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 143 KB 👁 2 views

As recently shown for positive ions (Rapid Commun. Mass Spectrom. 10, 871 (1996)), small to moderate-sized analyte ions (`20 000 Da) can fully suppress all matrix signals in matrix-assisted laser desorption/ionization (MALDI) mass spectra at appropriate matrix:analyte mixing ratios. The technique is

Threshold fluences for production of pos

Threshold fluences for production of positive and negative ions in matrix-assisted laser desorption/ionisation using liquid and solid matrices

✍ P.Y. Yau; T.-W. Dominic Chan; Peter G. Cullis; A.W. Colburn; Peter J. Derrick 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 568 KB

Dependences of positive and negative analyte-ion and matrix-ion signals upon pulse energy (at 266 nm) have been measured in matrix-assisted laser desorption/ionization (MALDI), for a liquid matrix (3-nitrobenzyl alcohol) and for a solid matrix (sinapinic acid). The analyte was the protein bovine ins

Ionization Modelling of Matrix Molecules

Ionization Modelling of Matrix Molecules in Ultraviolet Matrix-assisted Laser Desorption/Ionization

✍ D. A. Allwood; P. E. Dyer; R. W. Dreyfus 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 498 KB 👁 2 views

A scheme of matrix ionization in UV matrix-assisted laser desorptiodionization is presented. Excitation to an upper lying electronic singlet state by the absorption of two photons and subsequent thermionic emission by vibronic coupling is proposed as the primary route for the formation of unprotonat