𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Gas-flow assisted ion transfer for mass spectrometry

✍ Scribed by Sandilya Garimella; Wei Xu; Guangming Huang; Jason D. Harper; R Graham Cooks; Zheng Ouyang

Book ID
102383049
Publisher
John Wiley and Sons
Year
2012
Tongue
English
Weight
407 KB
Volume
47
Category
Article
ISSN
1076-5174

No coin nor oath required. For personal study only.

✦ Synopsis

Methods and devices that use gas flows to collect ions and transfer them over long distances for mass spectrometric analysis have been developed. Gas flows derived from the ionization source itself or provided by means of additional pumping were used to generate a laminar flow inside cylindrical tube. Hydrodynamic simulations and experimental tests demonstrate that laminar flow can transfer ions over long distance. The typical angular discrimination effects encountered when sampling ions from ambient ionization sources are minimized, and the sampling of relatively large surface areas is demonstrated with desorption electrospray ionization (DESI). Ion transfer over 6 m has been achieved and its application to multiplexed chemical analysis is demonstrated on samples at locations remote from the mass spectrometer. Copyright Β© 2012 John Wiley & Sons, Ltd.

πŸ“œ SIMILAR VOLUMES

Progress on a gas-accepting ion source f
Progress on a gas-accepting ion source for continuous-flow accelerator mass spectrometry
✍ M.L. Roberts; R.J. Schneider; K.F. von Reden; J.S.C. Wills; B.X. Han; J.M. Hayes πŸ“‚ Article πŸ“… 2007 πŸ› Elsevier Science 🌐 English βš– 950 KB

A gas-accepting microwave-plasma ion source is being developed for continuous-flow accelerator mass spectrometry (AMS). Characteristics of the ion source will be presented. Schemes for connecting a gas or liquid chromatograph to the ion source will also be discussed.

Selected ion flow tube mass spectrometry
Selected ion flow tube mass spectrometry (SIFT-MS) for on-line trace gas analysis
✍ David Smith; Patrik Ε panΔ›l πŸ“‚ Article πŸ“… 2005 πŸ› John Wiley and Sons 🌐 English βš– 956 KB

## Abstract Selected ion flow tube mass spectrometry (SIFT‐MS) is a new analytical technique for the real‐time quantification of several trace gases simultaneously in air and breath. It relies on chemical ionization of the trace gas molecules in air/breath samples introduced into helium carrier gas