Results 151 to 160 of about 519,734 (204)
Liquid Atmospheric Pressure MALDI (LAP-MALDI) Mass Spectrometry: A Versatile Tool for the Characterization of Synthetic Polymers. [PDF]
Rapid Commun Mass SpectromKowalczyk AE +3 more
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Tissue-Specific Metabolite Profiling and Antioxidant Potential of <i>Eclipta prostrata</i> Following Different Drying Treatments. [PDF]
Int J Mol SciBibi A +10 more
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Archives of Biochemistry and Biophysics, 1965
Abstract The titration of ribonuclease, acid to its isoionic point, has been conducted in 1.80 M KCl. The slopes of the titration curves in the neighborhood of half neutralization of the carboxyl groups have been studied at several ionic strengths.
H B, BULL, K, BREESE
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Abstract The titration of ribonuclease, acid to its isoionic point, has been conducted in 1.80 M KCl. The slopes of the titration curves in the neighborhood of half neutralization of the carboxyl groups have been studied at several ionic strengths.
H B, BULL, K, BREESE
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Ionization and double ionization of small water clusters
The Journal of Chemical Physics, 2006The valence ionization and double ionization spectra of the water molecule, of the water dimer, and the cyclic water clusters (H2O)3 and (H2O)4 are calculated by ab initio Green’s function methods and discussed in some detail. Particular attention is paid to the analysis of the development of the spectra with increasing cluster size.
Imke B, Müller, Lorenz S, Cederbaum
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The Analyst, 2013
A novel self-powered dual spray ionization source has been developed for applications in mass spectrometry. This new source does not use any power supply and produces both positive and negative ions simultaneously. The idea behind this ionization source comes from the Kelvin water dropper.
Özdemir A, Lin JL, Gillig KJ, Chen CH.
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A novel self-powered dual spray ionization source has been developed for applications in mass spectrometry. This new source does not use any power supply and produces both positive and negative ions simultaneously. The idea behind this ionization source comes from the Kelvin water dropper.
Özdemir A, Lin JL, Gillig KJ, Chen CH.
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Triboelectric spray ionization
Journal of Mass Spectrometry, 2013Triboelectric spray ionization (TESI) is a variation of electrospray ionization (ESI) using common instrumental components, including gas flow, solvent flow rate and heat, the only difference being the use of a high‐voltage power supply for ESI or a static charge for TESI.
Özdemir A, Lin JL, Gillig KJ, Chen CH.
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Physical Review A, 1986
Ion formation in sodium vapor (\ensuremath{\sim}${10}^{11}$ ${\mathrm{cm}}^{\mathrm{\ensuremath{-}}3}$) containing Rydberg atoms (18\ensuremath{\le}n\ensuremath{\le}35) was investigated. Both atomic ions and diatomic molecular ions resulting from collisions between highly excited sodium, ${\mathrm{Na}}^{\mathrm{*}\mathrm{*}}$, and Na(3s) were observed.
C. E. Burkhardt +5 more
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Ion formation in sodium vapor (\ensuremath{\sim}${10}^{11}$ ${\mathrm{cm}}^{\mathrm{\ensuremath{-}}3}$) containing Rydberg atoms (18\ensuremath{\le}n\ensuremath{\le}35) was investigated. Both atomic ions and diatomic molecular ions resulting from collisions between highly excited sodium, ${\mathrm{Na}}^{\mathrm{*}\mathrm{*}}$, and Na(3s) were observed.
C. E. Burkhardt +5 more
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Ionization and dissociative ionization of methane molecules
Technical Physics, 2013A technique for mass-spectrometric investigation of the yield of positive ions produced by direct and electron-impact dissociative ionization of methane molecules is described, and respective experimental data are presented. Doubly charged C 2 + , CH 3 2+
A. N. Zavilopulo +3 more
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Clinica Chimica Acta, 2011
Calcium is the most abundant mineral in the human body. While most of the body's calcium is sequestered in the skeleton, the free, hydrated cation in solution is a key physiologic mediator in a host of metabolic and regulatory processes. The free cation concentration in the extracellular fluid, historically referred to as "ionized calcium" in clinical ...
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Calcium is the most abundant mineral in the human body. While most of the body's calcium is sequestered in the skeleton, the free, hydrated cation in solution is a key physiologic mediator in a host of metabolic and regulatory processes. The free cation concentration in the extracellular fluid, historically referred to as "ionized calcium" in clinical ...
openaire +2 more sources