Use of chemical probes for the characterization of solvent mixtures. Part 1. Completely non-aqueous mixtures

1994 ◽  
pp. 1015 ◽  
Author(s):  
Yizhak Marcus
Keyword(s):  
Solvent Mixtures ◽  
Aqueous Mixtures ◽  
Chemical Probes

Characterization of ternary solvent mixtures: the methanol/ethanol/acetone mixture

2003 ◽  
Vol 371 (5-6) ◽  
pp. 645-654 ◽  
Author(s):  
C Dı́az ◽  
L Barrio ◽  
J Catalán
Keyword(s):  
Solvent Mixtures

scholarly journals Synthesis and characterization of a novel aminopolycarboxylate complexant for efficient trivalent f-element differentiation: N-butyl-2-acetamide-diethylenetriamine-N,N′,N′′,N′′-tetraacetic acid

2018 ◽  
Vol 47 (4) ◽  
pp. 1092-1105 ◽  
Author(s):  
Colt R. Heathman ◽  
Travis S. Grimes ◽  
Santa Jansone-Popova ◽  
Alexander S. Ivanov ◽  
Vyacheslav S. Bryantsev ◽  
...  
Keyword(s):  
Synthesis And Characterization ◽  
Tetraacetic Acid ◽  
Aqueous Mixtures ◽  
Trivalent Lanthanides ◽  
Trivalent Actinides

Novel aminopolycarboxylate complexant N-butyl-2-acetamide-diethylenetriamine-N,N′,N′′,N′′-tetraacetic acid was synthesized to discriminate trivalent actinides from trivalent lanthanides in aqueous mixtures of unconventional acidity.

The fractal calibration method applied to the characterization of polymers in solvent mixtures and in mixed gel packings by SEC

2007 ◽  
Vol 30 (13) ◽  
pp. 2037-2045 ◽  
Author(s):  
Iolanda Porcar ◽  
Rosa García-Lopera ◽  
Concepción Abad ◽  
Agustín Campos
Keyword(s):  
Calibration Method ◽  
Solvent Mixtures

Characterization of Alcohol Solvents by the Empirical Polarity Parameters AN, Z, and ET(30)

1982 ◽  
Vol 37 (6) ◽  
pp. 684-687 ◽  
Author(s):  
Horst Elias ◽  
Michael Dreher ◽  
Sabine Neitzel ◽  
Harald Volz
Keyword(s):  
Benzyl Alcohol ◽  
Solvent Effects ◽  
Binary Solvent ◽  
Solvent Mixtures ◽  
Acceptor Number ◽  
Binary Solvent Mixtures ◽  
Alcohol Solvents ◽  
Polarity Parameters

AbstractThe acceptor number AN and the polarity parameters Z and ET(30) were determined for a series of alcohols applied as media in the study of kinetic solvent effects. The alcohols thus characterized are methanol, ethanol, 1-propanol, 1-butanol, 2-butanol, 2-methyl-2-butanol, 3-pentanol, 2-chloroethanol, 2-methoxyethanol, 2-phenylethanol, 2-cyanoethanol, benzyl alcohol, 3-ethyl-3-pentanol, 2,4-dimethyl-3-pentanol, and 3-ethyl-2,4-dimetliyl-3-pentanol. In addition, AN was determined for 1,2-dichloroethane and Z for the binary solvent mixtures methanol/2-methyl-2-butanol, ethanol/2,2,2-trifluoroethanol. and methanol/pyridine. The data obtained are correlated and the parameters AN, Z, and ET(30) are critically compared.

Covalent modification and inhibition of an epithelial sodium channel by tyrosine-reactive reagents

1980 ◽  
Vol 239 (3) ◽  
pp. F299-F306 ◽  
Author(s):  
C. S. Park ◽  
D. D. Fanestil
Keyword(s):  
Short Circuit ◽  
Short Circuit Current ◽  
Complete Recovery ◽  
Covalent Modification ◽  
Na Channel ◽  
Chemical Probes ◽  
Pharmacologic Activity ◽  
Identification And Characterization ◽  
Aerobic And Anaerobic

This study sought to elucidate the molecular mechanism involved in the Na+ entry across the apical membrane of the urinary bladder of the toad. Na+ transport, as measured by short-circuit current (SCC), was irreversibly inhibited by three tyrosine-specific reagents: N-acetylimidazole (ID50, 4.6 x 10(-2)M), tetranitromethane (1.8 x 10(-4) M), and 7-chloro-4-nitrobenzo-2-oxa-1,3-diazole (NBD-Cl; 3.4 x 10(-5) M). The functional specificity of NBD-Cl to block Na+ entry via Na+ channels was attested by the following: 1) NBD-Cl produced comparable inhibition of SCC and Na+ influx under aerobic and anaerobic conditions; 2) amphotericin B produced complete recovery of inhibited SCC; 3) vasopressin increased SCC only in proportion to the uninhibited SCC; 4) Km for Na+ was not changed; and 5) the half time for the inhibition varied as a function of amiloride concentration or pharmacologic activity of its analogues. On the basis of the above findings, these tyrosine-specific reagents are believed to be useful chemical probes for the identification and characterization of Na+ channel protein.

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