An Agilent 5973 instrument (www.agilent.com) was used in a selected ion monitoring mode.
An electron cyclotron resonance (ECR) ion source using a selected circular mode microwave is studied for material processing.
Three mass spectra for each sample were collected using a selected-ion-monitoring stitching method from m/z (mass-to-charge ratio) 70 740 in negative ion mode [ 15, 16], processed, normalized and generalized log-transformed as reported previously [ 17, 18].
The analyses were based on the use of GC MS using selected ion monitoring mode; the electron impact (EI) mass spectrum of the underivatized AH-7921 showed characteristic fragments at m/ z 126 (base peak), 145, and 173.
We investigated the synthesis of metallic nanoparticles during growth of an amorphous carbon matrix using mass selected ion beam deposition of carbon and metal ions.
The molecular ion peaks of the indolinone derivatives of diclofenac ion (m/z 277) and the internal standard, 4-hydroxydiclofenac ion (m/z 439) were monitored by a mass-selective detector using selected ion monitoring (SIM) mode.
SpiceHit is a high-throughput metabolite identification tool for CE-MS analysis using the selected ion monitoring (SIM) method.
Optimization of this MS/MS method produced highest achiveable response using the MRM pairs comprising of the precursor and product ions, which can achieve better quantitation than reported results using the selected ion monitoring (SIM) mode.
[M-H]- ions from acetyl-CoA (m/z = 808, retention time: 9.1 min), acetoacetyl-CoA (m/z = 850, rt: 8.9 min), 3HB-CoA (m/z = 852, rt: 9.1 min) and lactyl-CoA (m/z = 838, rt: 8.7 min) were monitored using the selected ion monitoring mode.
The standalone Java tool SpiceHit is intended for high-throughput identification of metabolite features detected using the selected ion monitoring (SIM) method in CE-MS.
