A Cement Base for the Hot Filament Mass Spectrometer Source

MEMS ion source for mass spectrometer integrated on a chip

Tuning of an electrospray ionization source for maximum peptide-ion transmission into a mass spectrometer.

We describe assembly and optimization of a continuous flow nanoelectrospray source for high-performance analysis on a routine basis. It is derived from an inJection adaptable Fine Ionization Source ("JaFIS"), previously shown to be durable and easy to use (Geromanos, S.; et al. Rapid Commun. Mass Spectrom. 1998, 12, 551-556) and now modified for maximum sensitivity. Proper design, manufacturing...

A quadrupole mass spectrometer for resolution of low mass isotopes.

The qualitative and quantitative identification of low mass isotopes in the mass range 1-6 u poses certain difficulties when attempting to achieve the required resolution with an instrument suitable for deployment within a process environment. Certain adjacent species present in the process sample (HT and D(2)) require a resolution greater than 930 to achieve an accurate measurement. We demonst...

Demonstration of a VUV Lamp Photoionization Source for Improved Organic Speciation in an Aerosol Mass Spectrometer

M. J. Northway,1 J. T. Jayne,1 D. W. Toohey,2 M. R. Canagaratna,1 A. Trimborn,1 K.-I. Akiyama,3 A. Shimono,4 J. L. Jimenez,5,6 P. F. DeCarlo,2,6 K. R. Wilson,7 and D. R. Worsnop1 1Aerodyne Research, Inc., Billerica, Massachusetts, USA 2Department of Atmospheric and Oceanic Sciences, University of Colorado, Boulder, Colorado, USA 3Japan Automobile Research Institute, Ibariki, Japan 4Sanyu Plant ...

The Orbitrap: a new mass spectrometer.

Research areas such as proteomics and metabolomics are driving the demand for mass spectrometers that have high performance but modest power requirements, size, and cost. This paper describes such an instrument, the Orbitrap, based on a new type of mass analyzer invented by Makarov. The Orbitrap operates by radially trapping ions about a central spindle electrode. An outer barrel-like electrode...