It is well documented since the early days of the development of atmospheric pressure
ionization methods, which operate in the gas phase, that cluster ions are ubiquitous. This …

In this work, the characteristics of gas flow in inlet capillaries are examined. Such inlet
capillaries are widely used as a first flow restriction stage in commercial atmospheric …

Glass or metal inlet capillaries are commonly used for flow restriction in atmospheric
pressure ionization mass spectrometers. They exhibit a high ion transmission rate and …

We report on a novel method for atmospheric pressure ionization of compounds with
elevated electron affinity (eg, nitroaromatic compounds) or gas phase acidity (eg, phenols) …

The generated ion packets travel with the bulk gas through the capillary. The transfer time of
these ions was measured as a function of the distance between the ionization region varied …

Folie 1 Page 1 Te m pe rature [C ] Introduction Conclusions Methods API-MS Transfer Capillary
Flow: Examination of the Downstream Gas Expansion Sebastian Klopotowski1; Yessica …

Ionization methods operating at atmospheric pressure have largely affected the
development of analytical mass spectrometry. Today, virtually every atmospheric pressure …

A novel method for atmospheric pressure ionization of compounds with high electron affinity
(eg, nitroaromatic compounds) or gas phase acidity (eg, phenols) is reported. The method is …

Folie 1 Page 1 Temperature (K): Introduction Conclusions David Mueller; Yessica
Brachthaeuser; Valerie Derpmann; Sebastian Klopotowski; Markus Langner; Christine …

Valerie Derpmann; David Mueller; Thorsten Benter Page 1 0 5 10 15 20 25 30 35 40 45 0 0.2
0.4 0.6 0.8 1 Time [min] relative Intensity Glass Capillary Glass Capillary Pieces Metal …