H R Udseth
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Explore the profile of H R Udseth including associated specialties, affiliations and a list of published articles.
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43
Citations
1106
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Recent Articles
1.
Smith R, Loa J, Barinaga C, Edmonds C, Udseth H
J Am Soc Mass Spectrom
. 2013 Nov;
1(1):53-65.
PMID: 24248611
Collisional activation (CA) and collision-activated dissociation (CAD) of multiply protonated molecular ions produced by electrospray ionization using an atmospheric pressure source are described. A TAGA 6000E triple-quadrupole mass spectrometer, in...
2.
Ogorzalek Loo R, Udseth H, Smith R
J Am Soc Mass Spectrom
. 2013 Nov;
3(7):695-705.
PMID: 24234636
A simple flow reactor which facilitates the study and application of ion-ion and ion-molecule reactions at near atmospheric pressures is reported. Reactant ions were generated by electrospray ionization and discharge...
3.
Winger B, Hofstadler S, Bruce J, Udseth H, Smith R
J Am Soc Mass Spectrom
. 2013 Nov;
4(7):566-77.
PMID: 24227643
A novel electrospray ionization/Fourier transform ion cyclotron resonance mass spectrometer based on a 7-T superconducting magnet was developed for high-resolution accurate mass measurements of large biomolecules. Ions formed at atmospheric...
4.
Winger B, Light-Wahl K, Ogorzalek Loo R, Udseth H, Smith R
J Am Soc Mass Spectrom
. 2013 Nov;
4(7):536-45.
PMID: 24227640
High mass-to-charge ratio ions (> 4000) from electrospray ionization (ESI) have been observed for several proteins, including bovine cytochrome c (M r 12,231) and porcine pepsin (M r 34,584), by...
5.
Goodlelt D, Ogorzalek Loo R, Loo J, Wahl J, Udseth H, Smith R
J Am Soc Mass Spectrom
. 2013 Nov;
5(7):614-22.
PMID: 24221963
The thermal stability of ribonuclease S (RNase S), an enzymatically active noncovalent complex composed of a 2166-u peptide (S-peptide) and a 11,534-u protein (S-protein), was investigated by electrospray ionization mass...
6.
Wu Q, Anderson G, Udseth H, Sherman M, Van Orden S, Chen R, et al.
J Am Soc Mass Spectrom
. 2013 Nov;
7(9):915-22.
PMID: 24203605
A new in-magnetic field electrospray ionization (ESI) and Fourier transform ion cyclotron resonance mass spectrometer has been constructed and evaluated. This system is characterized by the use of multiple concentric...
7.
Muddiman D, Cheng X, Udseth H, Smith R
J Am Soc Mass Spectrom
. 2013 Nov;
7(8):697-706.
PMID: 24203563
The shift of charge states of oligonucleotide negative ions formed in electrospray ionization mass spectrometry to higher mass-to-charge ratio has been accomplished by addition of organic acids and bases to...
8.
Bruce J, Anderson G, Udseth H, Smith R
Anal Chem
. 2011 Jun;
70(3):519-25.
PMID: 21644751
We report a new method for mass spectrometric measurements of high-molecular-weight species based on the summation of sequential Fourier transform ion cyclotron resonance (FTICR) spectra of individual multiply charged ions....
9.
Belov M, Gorshkov M, Udseth H, Smith R
J Am Soc Mass Spectrom
. 2002 Jan;
12(12):1312-9.
PMID: 11766758
Undesired fragmentation of electrospray generated ions in an rf multipole traps can be problematic in many applications. Of special interest here is ion dissociation in a 2-D quadrupole ion trap...
10.
Belov M, Anderson G, Angell N, Shen Y, Tolic N, Udseth H, et al.
Anal Chem
. 2001 Nov;
73(21):5052-60.
PMID: 11721899
The characterization of cellular proteomes is important for understanding biochemical processes ranging from cell differentiation to cancer development. In one highly promising approach, whole protein extracts or fractions are digested...