Photofragmentations, state interactions, and energetics of Rydberg and ion-pair states: Two-dimensional resonance enhanced multiphoton ionization of HBr via singlet-, triplet-, Ω = 0 and 2 states

2012 ◽  
Vol 136 (21) ◽  
pp. 214315 ◽  
Author(s):  
Jingming Long ◽  
Helgi Rafn Hróðmarsson ◽  
Huasheng Wang ◽  
Ágúst Kvaran
1985 ◽  
Vol 31 (9) ◽  
pp. 1464-1467 ◽  
Author(s):  
S T Wong ◽  
J Spoo ◽  
K C Kerst ◽  
T G Spring

Abstract This spectrophotometric method for the direct determination of potassium in serum or plasma is based on the selective complexing of potassium by a specific macrocyclic polyether, with the subsequent formation of an ion-pair with a colored anion. The colored anion is extracted into an organic solvent, clarified by centrifugation, and then measured at 415 nm. The absorbance of the chromogen varies linearly with [K+] to at least 15 mmol/L. Results of this colorimetric method (y) correlate well with the results obtained by a flame-photometric method (y = 1.04x - 0.22, r = 0.97, n = 81), with CVs ranging from 2 to 4%. We observed no interferences from lipemia, added bilirubin, or various electrolytes. We also evaluated the use of this reagent in a new automated blood analyzer developed by Abbott, a two-dimensional centrifugal system (Clin Chem 31:1457-1463, 1985). Potassium determined with this system (y) correlated well with results by flame photometry: y = 1.02x + 0.02 (r = 0.94, n = 168). With this system one can use whole-blood specimens in measuring potassium.


2013 ◽  
Vol 16 (3) ◽  
pp. 513-524 ◽  
Author(s):  
Ivo Leibacher ◽  
Wolfgang Dietze ◽  
Philipp Hahn ◽  
Jingtao Wang ◽  
Steven Schmitt ◽  
...  

2009 ◽  
Vol 32 (8) ◽  
pp. 1165-1174 ◽  
Author(s):  
Martin Wörner ◽  
Katja Melchior ◽  
Nathanaël Delmotte ◽  
Kyung Hoon Hwang ◽  
Katalin Monostory ◽  
...  

2015 ◽  
Vol 143 (12) ◽  
pp. 124202 ◽  
Author(s):  
Zhenkun Guo ◽  
Brian P. Molesky ◽  
Thomas P. Cheshire ◽  
Andrew M. Moran

2016 ◽  
Vol 145 (3) ◽  
pp. 034203 ◽  
Author(s):  
Brian P. Molesky ◽  
Zhenkun Guo ◽  
Thomas P. Cheshire ◽  
Andrew M. Moran

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