Precursor ions are fragmented and the fragments are accumulated in parallel, by converting an incoming stream of ions from an ion source (10) into a time separated sequence of multiple precursor ions which are then assigned to their own particular channel of a multi compartment collision cell (...
Ions emitted from an ions source 1 are incident upon a collision cell 3 which alternatively and repeatedly switches between a first mode wherein the ions are substantially fragmented to produce daughter ions and a second mode wherein the ions are not substantially fragmented. Mass spectra are ...
Energy‐resolved mass spectrometry: a comparison of quadrupole cell and cone‐voltage collision‐induced dissociation The effects of ion kinetic energy upon the low-energy collision-induced dissociation (CID) process in triple quadrupole mass spectrometry (MS/MS) are inves... Harrison,Alex,G. - 《...
An 238U + ion intensity of up to 27 000 MHz/ppm in HEX-ICP-QMS with USN was observed by introducing helium into the hexapole collision cell as the... SF Boulyga,JS Becker,JL Matusevitch,... - 《International Journal of Mass Spectrometry》 被引量: 75发表: 2000年 Precise isotope-ratio...
spectrometry with collision cell technology,碰撞池-电感耦合等离子体质谱法测定地球化学样品中钒和铬 Determination of vanadium and chromium in geochemical samples by inductively coupled plasma mass spectrometry with collision cell technology,Determination,of,vanadium,and,chromium,in,geochemical,samples,by,...
Tandem mass spectrometry The two dimensional r.f.-driven collision cell was first introduced to mass spectrometry by Yost and Enke [15] in the triple quadrupole configuration. A r.f.-only enclosed quadrupole (the collision cell) was placed between two mass analyzing quadrupoles. Ions of interest...
Improvement of the detection limit for determination of I-129 in sediments by quadrupole inductively coupled plasma mass spectrometer with collision cell Becker, Improvement of the detection limit for determination of I-129 in sediments by quadrupole inductively coupled plasma mass spectrometer with collisi...
A liquid chromatography-high-resolution mass spectrometry (LC-HRMS) method for the simultaneous determination of aflatoxins (B_1, B_2, G_1, G_2), ochratoxin A, deoxynivalenol, zearalenone, T-2 and HT-2 toxins in wheat flour, barley flour and crisp bread was developed. Mycotoxin ...
The cyclotron frequency of an ion is dependent on its surrounding charge density; thus the number of ions in the cell must be drastically reduced if high front-end resolution is looked for. It is shown that under these conditions a front-end resolution of m/Δm > 30 000 can be reached ...
A tandem mass spectrometer is disclosed having a collisional damping cell that slows down and adapts an ion beam, from a time-of-flight mass spectrometer (TOF MS) to a second mass spectrometer, preferably an orthogonal TOF MS. The cell provides a substantial damping of the energy of the ions...