Investigation of Interaction of Fluoroquinolones with Aluminum, Iron and Magnesium ions Using Capillary Zone Eletrophoresis

2007 ◽  
Vol 65 (7-8) ◽  
pp. 489-492 ◽  
Author(s):  
B. Urbaniak ◽  
Y. Mrestani ◽  
Z. J. Kokot ◽  
R. H. H. Neubert
Keyword(s):  
Magnesium Ions ◽  
Aluminum Iron ◽  
Capillary Zone

Article

1998 ◽  
Vol 76 (3) ◽  
pp. 292-296
Author(s):  
Richard A Walker ◽  
Aaron C MacDonald ◽  
Tanya MacGillivray ◽  
D Gerrard Marangoni ◽  
Truis Smith-Palmer
Keyword(s):  
Capillary Zone Electrophoresis ◽  
Magnesium Ions ◽  
Zone Electrophoresis ◽  
Acid And Base ◽  
Capillary Zone ◽  
The Stability ◽  
Hydrolysis Of

Capillary zone electrophoresis (CZE) was used to study the preparation of 1,2-decanedisulfate from 1,2-decanediol and determine the stability of the two-headed surfactant and the corresponding hydroxydecanesulfates under both acidic and basic conditions. The optimum buffer for the CZE determination was found to be diethylbarbiturate. Resolution of the hydroxydecanesulfate constitutional isomers was facilitated by the addition of magnesium ions. Decanedisulfate was stable in base but hydrolyzed in acid. The hydroxysulfates hydrolyzed much more rapidly, and in both acid and base. Mechanisms were postulated based on differential rates of formation and hydrolysis of the hydroxydecanesulfate constitutional isomers.Key words: capillary zone electrophoresis, decanedisulfate, hydroxydecanesulfate, hydrolysis, surfactant.

Observations of the Thermal Decomposition of Brucite

1968 ◽  
Vol 26 ◽  
pp. 446-447
Author(s):  
P. L. Burnett ◽  
W. R. Mitchell ◽  
C. L. Houck
Keyword(s):  
Thermal Decomposition ◽  
Magnesium Oxide ◽  
Basal Plane ◽  
Magnesium Ions ◽  
A Value ◽  
Reaction Proceeds

Natural Brucite (Mg(OH)2) decomposes on heating to form magnesium oxide (MgO) having its cubic ﹛110﹜ and ﹛111﹜ planes respectively parallel to the prism and basal planes of the hexagonal brucite lattice. Although the crystal-lographic relation between the parent brucite crystal and the resulting mag-nesium oxide crystallites is well known, the exact mechanism by which the reaction proceeds is still a matter of controversy. Goodman described the decomposition as an initial shrinkage in the brucite basal plane allowing magnesium ions to shift their original sites to the required magnesium oxide positions followed by a collapse of the planes along the original <0001> direction of the brucite crystal. He noted that the (110) diffraction spots of brucite immediately shifted to the positions required for the (220) reflections of magnesium oxide. Gordon observed separate diffraction spots for the (110) brucite and (220) magnesium oxide planes. The positions of the (110) and (100) brucite never changed but only diminished in intensity while the (220) planes of magnesium shifted from a value larger than the listed ASTM d spacing to the predicted value as the decomposition progressed.

The Effect of Agents which Modify Platelet Behaviour and of Magnesium Ions on Thrombus Formation In Vivo

1979 ◽  
Vol 42 (02) ◽  
pp. 603-610 ◽  
Author(s):  
J H Adams ◽  
J R A Mitchell
Keyword(s):  
Thrombus Formation ◽  
Cerebral Arteries ◽  
Magnesium Ions ◽  
Body Formation ◽  
Inflammatory Agent ◽  
Platelet Thrombus ◽  
Magnesium Salts ◽  
Higher Doses ◽  
Do So

SummaryThe ability of potential anti-thrombotic agents to modify platelet-thrombus formation in injured cerebral arteries in the rabbit was tested. Low doses of heparin were without effect, while higher doses produced variable suppression of white body formation but at the expense of bleeding. Aspirin did not inhibit white body formation but another non-steroid anti-inflammatory agent, flurbiprofen was able to do so, as was the anti-gout agent, sulphinpyrazone. Magnesium salts both topically and parenterally, suppressed thrombus formation and increased the concentration of ADP which was required to initiate thrombus production at minor injury sites.

COPPER ALLOY No. 954

Alloy Digest ◽  
1975 ◽  
Vol 24 (2) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Copper Alloy ◽  
Iron Alloy ◽  
High Strength ◽  
Heat Treating ◽  
Good Resistance ◽  
Excellent Corrosion Resistance ◽  
Aluminum Iron ◽  
Copper Aluminum

Abstract Copper Alloy No. 954 is a copper-aluminum-iron alloy characterized by high strength and hardness, good resistance to fatigue and wear, and excellent corrosion resistance. It is suited for service up to 750 F. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: Cu-292. Producer or source: Copper alloy foundries.

AMPCOLOY B-2

Alloy Digest ◽  
1977 ◽  
Vol 26 (3) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Shear Strength ◽  
Physical Properties ◽  
Tensile Properties ◽  
Iron Alloy ◽  
Heat Treating ◽  
General Purpose ◽  
Good Resistance ◽  
Aluminum Iron ◽  
Copper Aluminum

Abstract AMPCOLOY B-2 is a copper-aluminum-iron alloy for general-purpose uses. It has good machinability, good hot-working characteristics and moderate strength. Its many uses include cams, gears, bushings, bearings, marine equipment and other applications requiring good resistance to corrosion. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as fatigue. It also includes information on corrosion resistance as well as casting, forming, heat treating, machining, and joining. Filing Code: Cu-329. Producer or source: Ampco Metal Inc..

Effect of substitution on the mechanism of conductivity of ultra dispersed lithium - iron spinel, substituted with magnesium ions

2017 ◽  
Vol 9 (5) ◽  
pp. 05018-1-05018-6
Author(s):  
B. K. Ostafiychuk ◽  
◽  
L. S. Kaykan ◽  
J. S. Mazurenko ◽  
B. Ya. Deputat ◽  
...  
Keyword(s):  
Magnesium Ions
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