Determination of Ca⁺and K⁺by pulsed glow discharge sector-field mass spectrometry

Model of microsecond pulsed glow discharge in hollow cathode for mass spectrometry

“…10, 12) that there is a temporal separation of Ar + and sample ions because Ar atoms are not subject to Penning ionization. This is in a qualitative agreement with experimental works [13,19,21,60], where the temporal separation was observed experimentally. …”

“…For microsecond PDG the instantaneous power can reach several kW, and therefore the high power leads to an appreciable increase of sample atoms excitation and ionization rates. An increase of analytical signal to noise ratio by 1-4 orders of magnitude in microsecond pulsed discharge mode takes place for atomic absorption, emission, fluorescence and mass spectrometry [3,[12][13][14][15][16][17]. At the same time the average power of the PGD may be significantly less than in DC and RF GD.…”

Ultra high performance liquid chromatography with ion‐trap TOF‐MS for the fast characterization of flavonoids in Citrus bergamia juice

“…All these approaches are generally characterized by an analysis time of approximately 50 min, in agreement with that indicated for the analysis of phenolic compounds [12], and the detection is usually performed by both UV and MS or MS/MS on low-resolution instruments such as ion trap (IT) or single quadrupole instruments. In this matrix, high mass accuracy measurements as well as multiple MS n experiments appear to be limited in the literature, the employment of hybrid mass spectrometers, such as IT-TOF instruments, capable of high mass accuracy, in both full scan and MS n stages, which are very informative for structure characterization especially for glycosidate compounds, has not been investigated yet, even though the potential of IT-TOF instrumentation for structure elucidation and accurate mass measurements of flavonoids [13,14] and anthocyanins [15,16] has been demonstrated previously.…”

Evaluation of a fourth-generation focal plane camera for use in plasma-source mass spectrometry

“…Shortcomings included low sensitivity, nonlinear signals, unsatisfactory peak shape, and a linear dynamic range restricted to 10 1 to 10 3 . 7 Improved technology led to the development of spatial detectors based on electron multiplier arrays that produced spatial images on a phosphor screen. 8 These electro-optical imaging detectors (EOIDs) used multiple conversions to detect photons created from microchannel plate electrons that impinged upon a scintillator.…”