scholarly journals Reversible Cation Response with a Protein-Modified Nanopipette

2011 ◽  
Vol 83 (16) ◽  
pp. 6121-6126 ◽  
Author(s):  
Boaz Vilozny ◽  
Paolo Actis ◽  
R. Adam Seger ◽  
Queralt Vallmajo-Martin ◽  
Nader Pourmand
Keyword(s):  
Cation Response

Structure, anion, and solvent effects on cation response in ESI-MS

2019 ◽  
Author(s):  
Isaac Omari ◽  
Parmissa Randhawa ◽  
Jaiya Randhawa ◽  
Jenny Yu ◽  
J Scott McIndoe
Keyword(s):  
Predictive Power ◽  
Solution Concentration ◽  
High Reactivity ◽  
Chemical Processes ◽  
Ionization Mass ◽  
Solution Composition ◽  
Ionization Mass Spectrum ◽  
Electrospray Ionization Mass Spectrum ◽  
Cation Response ◽  
Insight Into

<p>The abundance of an ion in an electrospray ionization mass spectrum is dependent on many factors beyond just solution concentration. Even in cases where the ions are permanently charged and do not rely on protonation or other chemical processes to acquire the necessary charge, factors such as cation structure, molecular weight, solvent, and the identity of the anion can perturb results. Screening of a variety of combinations of cation, anion and solvent provided insight into some of the more important factors. Rigid cations and high conductivity anions tended to provide the highest responses, while acetonitrile was the most accurate solvent for reflecting solution composition. Functional groups that had affinity for the solvent tended to depress response. These observations will provide predictive power when accounting for ions that for reasons of high reactivity can not be isolated.</p><br>

Cation Response of Torand Thin Films at the Air-Water Interface

Langmuir ◽  
1994 ◽  
Vol 10 (4) ◽  
pp. 991-993 ◽  
Author(s):  
Leonid Boguslavsky ◽  
Thomas W. Bell
Keyword(s):  
Thin Films ◽  
Water Interface ◽  
Air Water Interface ◽  
Cation Response

Novel 1,2,3-triazole-based compounds: Iodo effect on their gelation behavior and cation response

2017 ◽  
Vol 12 (2) ◽  
pp. 252-261 ◽  
Author(s):  
Yaodong Huang ◽  
Shuxue Liu ◽  
Zhuofeng Xie ◽  
Zipei Sun ◽  
Wei Chai ◽  
...  
Keyword(s):  
Gelation Behavior ◽  
Cation Response

scholarly journals Tree‐Ring Cation Response to Experimental Watershed Acidification in West Virginia and Maine

1999 ◽  
Vol 28 (1) ◽  
pp. 299-309 ◽  
Author(s):  
David R. DeWalle ◽  
Jeffrey S. Tepp ◽  
Bryan R. Swistock ◽  
William E. Sharpe ◽  
Pamela J. Edwards
Keyword(s):  
West Virginia ◽  
Tree Ring ◽  
Cation Response

Structure, anion, and solvent effects on cation response in ESI-MS

2019 ◽  
Author(s):  
Isaac Omari ◽  
Parmissa Randhawa ◽  
Jaiya Randhawa ◽  
Jenny Yu ◽  
J Scott McIndoe
Keyword(s):  
Predictive Power ◽  
Solution Concentration ◽  
High Reactivity ◽  
Chemical Processes ◽  
Ionization Mass ◽  
Solution Composition ◽  
Ionization Mass Spectrum ◽  
Electrospray Ionization Mass Spectrum ◽  
Cation Response ◽  
Insight Into

<p>The abundance of an ion in an electrospray ionization mass spectrum is dependent on many factors beyond just solution concentration. Even in cases where the ions are permanently charged and do not rely on protonation or other chemical processes to acquire the necessary charge, factors such as cation structure, molecular weight, solvent, and the identity of the anion can perturb results. Screening of a variety of combinations of cation, anion and solvent provided insight into some of the more important factors. Rigid cations and high conductivity anions tended to provide the highest responses, while acetonitrile was the most accurate solvent for reflecting solution composition. Functional groups that had affinity for the solvent tended to depress response. These observations will provide predictive power when accounting for ions that for reasons of high reactivity can not be isolated.</p><br>

Plasma parathyroid hormone and divalent cation response to induction of acute metabolic acidosis

1982 ◽  
Vol 60 (12) ◽  
pp. 1505-1513 ◽  
Author(s):  
James R. Oster ◽  
Guido O. Perez ◽  
Janet M. Canterbury ◽  
Helen C. Alpert ◽  
Carlos A. Vaamonde
Keyword(s):  
Lactic Acid ◽  
Parathyroid Hormone ◽  
Metabolic Acidosis ◽  
Methylmalonic Acid ◽  
Magnesium Concentration ◽  
Acute Administration ◽  
Anesthetized Dogs ◽  
Acute Metabolic Acidosis ◽  
Plasma Magnesium ◽  
Cation Response

Since the effect of acute administration of acid upon blood magnesium and parathyroid hormone (PTH) is unclear we infused anesthetized dogs with saline (controls), HCl, lactic, and methylmalonic acids for 3 h. In all groups but lactic acid, plasma magnesium decreased; ionized calcium levels were increased by all three acids. Nevertheless, PTH increased in each of six dogs following methylmalonic acid and decreased in four of six animals after lactic acid. The decrease in plasma magnesium concentration after methylmalonic acid appeared to be an important factor in explaining the disparate PTH changes in these two groups because concomitant magnesium administration obviated the increases in PTH in four of six additional methylmalonic acid-infused dogs.

Structure, Anion, and Solvent Effects on Cation Response in ESI-MS

2019 ◽  
Vol 30 (9) ◽  
pp. 1750-1757 ◽  
Author(s):  
Isaac Omari ◽  
Parmissa Randhawa ◽  
Jaiya Randhawa ◽  
Jenny Yu ◽  
J. Scott McIndoe
Keyword(s):  
Solvent Effects ◽  
Esi Ms ◽  
Cation Response
Sign in / Sign up

Export Citation Format

Share Document