Nitrate ion photochemistry at interfaces: a new mechanism for oxidation of α-pinene

2008 ◽  
Vol 10 (21) ◽  
pp. 3063 ◽  
Author(s):  
Yong Yu ◽  
Michael J. Ezell ◽  
Alla Zelenyuk ◽  
Dan Imre ◽  
Liz Alexander ◽  
...  
Keyword(s):  
Nitrate Ion ◽  
Ion Photochemistry

Determination of Nitrate Ion in Cheese and Sake

2020 ◽  
Vol 61 (6) ◽  
pp. 229-234
Author(s):  
Takahiro Sasaki ◽  
Shoichi Tahara ◽  
Ritsuko Toyohara ◽  
Mari Morikawa ◽  
Narue Sakamaki ◽  
...  
Keyword(s):  
Nitrate Ion

Extraction of tetra- and hexavalent actinide ions from nitric acid solutions using some diglycolamide functionalized calix[4]arenes

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Rajesh B. Gujar ◽  
Parveen K. Verma ◽  
Prasanta K. Mohapatra ◽  
Mudassir Iqbal ◽  
Jurriaan Huskens ◽  
...  
Keyword(s):  
Nitric Acid ◽  
Solvent Extraction ◽  
Extraction Efficiency ◽  
Minor Actinide ◽  
Acid Solutions ◽  
Extraction Mechanism ◽  
Nitrate Ion ◽  
Nitric Acid Solutions ◽  
Actinide Ions ◽  
Acid Extractant

Abstract Neptunium is one of the most important minor actinide elements with some of its isotopes having very long half-lives, therefore necessitating its separation from acidic radioactive wastes. Solvent extraction of Np4+ and NpO2 2+ was studied using three multiple diglycolamide (DGA) extractants with n-propyl, n-octyl and 3-pentyl substituents termed as L I , L II and L III , respectively, in a mixed diluent of 5% isodecanol and 95% n-dodecane. For comparison purpose, the extraction of Pu4+ and UO2 2+ was carried out under identical conditions. The extraction efficiency of the ligands for the tetravalent ions followed the trend: L II  > L I  > L III , which changed to L III  > L II  > L I for the hexavalent ions. While the extraction of the tetravalent ions was reasonably good (ca. 90–98%) with an extremely low (5.0 × 10−5 M) ligand concentration, poor extraction (ca. 5–16%) of the hexavalent ions was seen even with a 20 times higher concentration of the ligand. In general, Pu4+ was better extracted than Np4+, while NpO2 2+ was marginally better extracted then UO2 2+. A ‘solvation’ type extraction mechanism was proposed based on the extraction profiles obtained as a function of the concentrations of the feed nitric acid, extractant as well as nitrate ion. The extracted species were found out to be M(NO3)4·mL and MO2(NO3)2·nL (M = Np or Pu, 1 < m < 2, n ≃ 1).

The alkalimetric determination of nitrate ion by means of a copper-catalysed reduction

1952 ◽  
Vol 6 ◽  
pp. 416-419 ◽  
Author(s):  
Zoltán G. Szabó ◽  
Lajos G. Bartha
Keyword(s):  
Nitrate Ion

The Potentiation of Muscular Contraction by the Nitrate-Ion

Science ◽  
1950 ◽  
Vol 112 (2918) ◽  
pp. 647-649 ◽  
Author(s):  
A. J. Kahn ◽  
A. Sandow
Keyword(s):  
Muscular Contraction ◽  
Nitrate Ion

scholarly journals A New Spectrophotometric Determination of Nitrate Ion by Solvent Extraction

1968 ◽  
Vol 89 (4) ◽  
pp. 399-404 ◽  
Author(s):  
Yuroku YAMAMOTO ◽  
Nobuko OKAMOTO ◽  
Eiji TAO
Keyword(s):  
Solvent Extraction ◽  
Spectrophotometric Determination ◽  
Nitrate Ion

Detection Limits of AC-Coupled Inverse Raman Spectroscopy

1980 ◽  
Vol 34 (2) ◽  
pp. 144-146 ◽  
Author(s):  
Jeanne P. Haushalter ◽  
G. Patrick Ritz ◽  
David J. Wallan ◽  
Kathy Dien ◽  
Michael D. Morris
Keyword(s):  
Raman Spectroscopy ◽  
Detection Limits ◽  
Nitrate Ion ◽  
Lower Detection

ac-coupled inverse Raman spectroscopy is shown to yield detection limits comparable to those obtained by spontaneous Raman spectroscopy. For an aqueous nitrate ion, inverse Raman limits are about 2.5 times higher than those reported for conventional measurements with similar laser powers and measurement times. Proposed improvements in instrumentation may lower detection limits another 10 times with no change in laser powers or measurement times.

Reaction of electronically excited benzene molecule with nitrate ion

1986 ◽  
Vol 127 (1) ◽  
pp. 93-96 ◽  
Author(s):  
S. Dhanya ◽  
R.D. Saini ◽  
P.K. Bhattacharyya
Keyword(s):  
Benzene Molecule ◽  
Nitrate Ion ◽  
Electronically Excited
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