THE EFFECT OF OXYGEN ON THE PHOTOCHEMISTRY OF THE IODIDE ION IN AQUEOUS SOLUTIONS

1962 ◽  
Vol 66 (10) ◽  
pp. 2042-2045 ◽  
Author(s):  
Joshua Jortner ◽  
Michael Ottolenghi ◽  
Gabriel Stein
Keyword(s):  
Aqueous Solutions ◽  
Iodide Ion ◽  
Effect Of Oxygen

Analyte Transport Studies of Aqueous Solutions and Slurry Samples Using Electrothermal Vaporization ICP-MS

1995 ◽  
Vol 49 (10) ◽  
pp. 1403-1410 ◽  
Author(s):  
R. W. Fonseca ◽  
N. J. Miller-Ihli
Keyword(s):  
Aqueous Solutions ◽  
Inductively Coupled Plasma ◽  
Oyster Tissue ◽  
Electrothermal Vaporization ◽  
Experimental Conditions ◽  
Carbon Particles ◽  
Icp Ms ◽  
The Difference ◽  
Effect Of Oxygen ◽  
Analyte Transport

Analyte transport of both aqueous solutions and slurry samples was studied with the use of ultrasonic slurry sampling electrothermal vaporization inductively coupled plasma mass spectrometry (USS-ETV-ICP-MS). The elements studied included V, Mn, Ni, Cu, and Pb, and the materials analyzed included NIST SRM 1548 Total Diet, SRM 1632a Coal, SRM 1566a Oyster Tissue, and NRCC LUTS-1 Lobster Hepatopancreas. The effect of microgram amounts of Pd as well as the effect of oxygen ashing on analyte transport were studied. Slurry samples were found to have better analyte transport in comparison to aqueous solutions when no physical carriers were added. Under these experimental conditions, the determined slurry concentrations were apparently high when quantified with the use of external calibration. Microgram amounts of Pd were used to investigate whether it was possible to reduce the difference in analyte transport between slurry samples and aqueous standards. The use of microgram amounts of Pd resulted in signal intensity suppression. Such a signal reduction could be related to the presence of space charge effects or losses of analyte due to condensation of the physical carrier together with the analyte on different parts of the ETV cell or the transfer line. On the other hand, quantitation for slurry samples was improved by the use of Pd as a physical carrier. Pd by itself was not completely effective for samples with high carbon content; therefore the effect of oxygen ashing combined with Pd was studied. An enhancement of signal intensities was observed when oxygen ashing was used, as well as a shift in the carbon signal to earlier times. In this case, signal enhancement was associated with an improvement in analyte transport caused by an increased number of carbon particles leaving the furnace at the same time as the analytes studied. With oxygen ashing, slurry samples behaved more similarly to aqueous solutions, facilitating quantitation with aqueous standards.

CAGE EFFECTS AND SCAVENGING MECHANISMS IN THE PHOTOCHEMISTRY OF THE IODIDE ION IN AQUEOUS SOLUTIONS

1962 ◽  
Vol 66 (10) ◽  
pp. 2029-2036 ◽  
Author(s):  
Joshua Jortner ◽  
Michael Ottolenghi ◽  
Gabriel Stein
Keyword(s):  
Aqueous Solutions ◽  
Iodide Ion ◽  
Cage Effects

Electrochemically triggered iodide-vacancy BiOI film for selective extraction of iodide ion from aqueous solutions

2021 ◽  
Vol 259 ◽  
pp. 118120
Author(s):  
Jinhua Luo ◽  
Xiao Du ◽  
Fengfeng Gao ◽  
Pengfei Ma ◽  
Xiaogang Hao ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Selective Extraction ◽  
Iodide Ion

Some physical properties of aqueous solutions of tetramethylammonium bromide and tetramethylammonium iodide

1965 ◽  
Vol 18 (8) ◽  
pp. 1161 ◽  
Author(s):  
BJ Levien
Keyword(s):  
Aqueous Solutions ◽  
Physical Properties ◽  
Activity Coefficients ◽  
Ion Association ◽  
Ion Pair ◽  
Standard Entropy ◽  
Solubility In Water ◽  
Iodide Ion ◽  
Tetramethylammonium Bromide

The activity coefficients up to saturation, some conductances and densities, and the solubility in water have been measured for tetramethylammonium bromide and tetramethylammonium iodide. Ion association exists and the ion-pair constants have been calculated by three methods. The standard entropy of the aqueous (CH3)4N+ ion has been calculated.

Growth of (Ba, Sr)TiO3 thin films by the hydrothermal-electrochemical method and effect of oxygen evolution on their microstructure

1996 ◽  
Vol 11 (1) ◽  
pp. 169-183 ◽  
Author(s):  
Koji Kajiyoshi ◽  
Masahiro Yoshimura ◽  
Yukio Hamaji ◽  
Kunisaburo Tomono ◽  
Toru Kasanami
Keyword(s):  
Thin Films ◽  
Solid Solution ◽  
Aqueous Solutions ◽  
Oxygen Evolution ◽  
Electrochemical Method ◽  
Gas Pressure ◽  
Oxygen Gas ◽  
Hydrothermal Electrochemical Method ◽  
Effect Of Oxygen ◽  
Crater Shape

Thin films in the system BaTiO3–SrTiO3 have been grown on Ti electrodes with control of the Ba/Sr composition in aqueous solutions of (Ba, Sr) (OH)2 by the hydrothermal-electrochemical method. Barium contents of the solid-solution films were always lower than those of the synthesis solutions used. The BaTiO3 and the (Ba, Sr)TiO3 solid-solution films included “crater-shape” defects that resulted from the breakaway of the growing film, whereas no such defects were observed in the SrTiO3 film. This dependence of the defect generation on the film composition was interpreted to be caused by differences of anodically evolved oxygen gas pressure in “short-circuiting paths” that exists characteristically in the films grown by this method.

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