Near-infrared reversible photoswitching of an isolated azobenzene-stilbene dye
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The recently developed technique of energy‐dependent electrospray ionisation mass spectrometry (EDESI‐MS) has been implemented on a triple quadrupole mass spectrometer such that fragmentation occurs in the collision cell rather than at the skimmer cone. Th ...
A thin chip polymer-based microsprayer has been coupled to a hybrid quadrupole time-of-flight mass spectrometer (QTOF MS) and introduced in carbohydrate research. The feasibility of the approach is demonstrated for mapping, sequencing and structural elucid ...
We report on a novel gas spectrometry technique using pyroelectric thin-him arrays. The 1 x 50 element arrays of PZT are integrated onto silicon using a membrane structure. The experimental characterization of the pyroelectric elements shows both high volt ...
In this paper we present the first results obtained with a plasma ion mass spectrometer in the boundary of the TEXTOR tokamak. Measurements were made several days after TEXTOR was boronised. Comparisons are made with results obtained in DITE under similar ...
Methods and spectrometers for carrying out ion-cyclotron-resonance spectrometry are described in which a pulse sequence is employed which is described by P1-t1-P2-Tm-P3-t2, (P1, P2, and P3 are radio-frequency pulses, with P1 and P2 having the same frequenc ...
We develop a microionizer as the ion source in a miniaturized spectrometerlike gas analyzer, operating at atmospheric pressure. Several options for the ionizing principle were considered. The application of dc glow discharge in a microsystem was studied in ...
Ion cyclotron modes excited in a low density, cylindrical plasma cavity using an external inductive antenna are investigated theoretically and experimentally. These modes, which have a long parallel wavelength, exhibit a strong electrostatic character and ...
Attachment-induced ionization instability has been experimentally observed in O-2 and CF4 capacitive RF discharges using time-resolved voltage probe, Langmuir probe, optical emission and mass spectrometry measurements. This instability occurs under specifi ...
The derivatization of neutral transition metal carbonyl clusters with an alkoxide anion, [Mn(CO)xOR]- is discussed. The electrospray ionization mass spectrometry technique is used for the purpose. Control of the potential applied to the skimmer cone of the ...
Effects of nanosecond electromagnetic pulses on metallic (Al) and semiconductor (Si, GaAs) surfaces were investigated exptl. in vacuum. For the surface c.d. 104-106 Wcm-2, an impulse desorption of ions was obsd. from adsorbed gaseous layers or deposited or ...
