Kinetics of intramolecular chemical exchange by initial growth rates of spin saturation transfer difference experiments (SSTD NMR)

The water ligand observed via a gradient spectroscopy type experiment with 19F detection was applied to selectively detect fluorinated compounds with affinity to the target proteins. The 19F signals of bound and unbound compounds were observed as opposite phases, which was advantageous to distinguish the binding state. The proposed NMR method was optimized based on the 19F{1H} saturation transfer difference pulse sequence, and various inversion pulses for the water resonance were evaluated with the aim of high sensitivity.

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Kinetics of starch hydrolysis and glucose mutarotation studied by NMR chemical exchange saturation transfer (CEST)

Carbohydrate Polymers ◽

10.1016/j.carbpol.2011.06.056 ◽

2011 ◽

Vol 86 (4) ◽

pp. 1525-1532 ◽

Cited By ~ 5

Author(s):

Anthony C. Dona ◽

Guilhem Pages ◽

Philip W. Kuchel

Keyword(s):

Chemical Exchange ◽

Starch Hydrolysis ◽

Chemical Exchange Saturation Transfer ◽

Saturation Transfer ◽

Kinetics Of

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Influence of medium on alkaline hydrolysis of succinic acid monomethyl and monopropyl esters

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19802873 ◽

1980 ◽

Vol 45 (11) ◽

pp. 2873-2882

Author(s):

Vladislav Holba ◽

Ján Benko

Keyword(s):

Succinic Acid ◽

Kinetic Parameters ◽

Alkaline Hydrolysis ◽

Specific Interactions ◽

Nonaqueous Media ◽

The Media ◽

Kinetics Of ◽

Hydrolysis Of

The kinetics of alkaline hydrolysis of succinic acid monomethyl and monopropyl esters were studied in mixed aqueous-nonaqueous media at various temperatures and ionic strengths. The results of measurements are discussed in terms of electrostatic and specific interactions between the reactants and other components of the reaction mixture. The kinetic parameters in the media under study are related to the influence of the cosolvent on the solvation sphere of the reactants.

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Kinetics of temperature-programmed reactivation of a hydrodesulphurization catalyst

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19833340 ◽

1983 ◽

Vol 48 (12) ◽

pp. 3340-3355 ◽

Cited By ~ 2

Author(s):

Pavel Fott ◽

Pavel Šebesta

Keyword(s):

Carbon Dioxide ◽

Thermal Analysis ◽

Differential Thermal Analysis ◽

Thin Layer ◽

Kinetic Parameters ◽

Diffusion Region ◽

Reaction Heat ◽

Gaseous Products ◽

Temperature Programmed ◽

Kinetics Of

The kinetic parameters of reactivation of a carbonized hydrodesulphurization (HDS) catalyst by air were evaluated from combined thermogravimetric (TG) and differential thermal analysis (DTA) data. In addition, the gaseous products leaving a temperature-programmed reactor with a thin layer of catalyst were analyzed chromatographically. Two exothermic processes were found to take part in the reactivation, and their kinetics were described by 1st order equations. In the first process (180-400 °C), sulphur in Co and Mo sulphides is oxidized to sulphur dioxide; in the second process (300-540 °C), in which the essential portion of heat is produced, the deposited carbon is oxidized to give predominantly carbon dioxide. If the reaction heat is not removed efficiently enough, ignition of the catalyst takes place, which is associated with a transition to the diffusion region. The application of the obtained kinetic parameters to modelling a temperature-programmed reactivation is illustrated on the case of a single particle.

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Kinetics of the Crystallization of Potassium Sulfate

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19931848 ◽

1993 ◽

Vol 58 (8) ◽

pp. 1848-1854 ◽

Cited By ~ 3

Author(s):

Miroslav Karel ◽

Jaroslav Nývlt

Keyword(s):

Experimental Data ◽

Crystal Growth ◽

Growth Rates ◽

Potassium Sulfate ◽

Kinetics Of

The kinetics of the crystallization of potassium sulfate has been determined using the MSMPR technique. Values of the nucleation and crystal growth rates evaluated from the experimental data are compared with the corresponding literature data.

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