Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Alexander Haack"'
Autor:
Alexander Haack, Scott Hopkins
Publikováno v:
Journal of the American Society for Mass Spectrometry. 33:2250-2262
Differential mobility spectrometry (DMS) uses high-frequency oscillating electrical fields to harness the differential mobility of ions for separating complex sample mixtures prior to detection. To increase the resolving power, a dynamic microsolvati
Publikováno v:
Journal of the American Society for Mass Spectrometry.
Autor:
Cailum M.K. Stienstra, Neville J.A. Coughlan, Alexander Haack, Patrick J.J. Carr, Jeff Crouse, Joshua Featherstone, W. Scott Hopkins
Publikováno v:
Canadian Journal of Chemistry.
Although the krypton dimer, Kr2, is a prototypical weakly bound van der Waals complex in its ground electronic state, the excited states of Kr2 exhibit many and various interactions. Resonance-enhanced multiphoton ionization and velocity map imaging
Publikováno v:
Journal of the American Society for Mass Spectrometry. 33:535-547
Differential mobility spectrometry is a separation technique that may be applied to a variety of analytes ranging from small molecule drugs to peptides and proteins. Although rudimentary theoretical models of differential mobility exist, these models
Publikováno v:
ACS Catalysis. 11:9086-9101
Autor:
Valerie Derpmann, David Müller, Alexander Haack, Walter Wissdorf, Hendrik Kersten, Thorsten Benter
Publikováno v:
Journal of the American Society for Mass Spectrometry. 33(9)
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 stability at most operating conditions. However, transferring unipolar curren
Autor:
Fiorella Villanueva Heldmaier, Marcel Nooijen, Rebecca Huard, J. Larry Campbell, Alexander Haack, Neville J. A. Coughlan, Mircea Guna, W. Scott Hopkins, Bradley B. Schneider, J. C. Yves Le Blanc
Publikováno v:
Physical Chemistry Chemical Physics. 23:19892-19900
Two prototropic isomers of adenine are formed in an electrospray ion source and are resolved spatially in a differential mobility spectrometer before detection in a triple quadrupole mass spectrometer. Each isomer is gated in CV space before being tr
Autor:
Christian Ieritano, J. C. Yves Le Blanc, Bradley B. Schneider, Justine R. Bissonnette, Alexander Haack, W. Scott Hopkins
Publikováno v:
Angewandte Chemie. 134
Autor:
Christian Ieritano, J. C. Yves Le Blanc, Bradley B. Schneider, Justine R. Bissonnette, Alexander Haack, W. Scott Hopkins
Publikováno v:
Angewandte Chemie International Edition. 61
Upon development of a workflow to analyze (±)-Verapamil and its metabolites using differential mobility spectrometry (DMS), we noticed that the ionogram of protonated Verapamil consisted of two peaks. This was inconsistent with its metabolites, as e
Publikováno v:
Journal of the American Society for Mass Spectrometry. 31:796-802
The effect of strong ion–solvent interactions on the differential mobility behavior of the tricarbastannatrane cation, N(CH2CH2CH2)3Sn+, has been investigated. Exotic “type D” dispersion behavior, ...