The construction and characteristics of drug-selective electrodes. Applications for the determination of complexation constants of inclusion complexes with α- and β-cyclodextrins including a kinetic study

1988 ◽  
Vol 84 (9) ◽  
pp. 3059 ◽  
Author(s):  
Norboru Takisawa ◽  
Denver G. Hall ◽  
Evan Wyn-Jones ◽  
Philip Brown
Keyword(s):  
Kinetic Study ◽  
Inclusion Complexes ◽  
Complexation Constants

Benzyl ethers of methyl α-D-glucopyranoside

1980 ◽  
Vol 45 (7) ◽  
pp. 1959-1963 ◽  
Author(s):  
Dušan Joniak ◽  
Božena Košíková ◽  
Ludmila Kosáková
Keyword(s):  
Kinetic Study ◽  
Spectrophotometric Determination ◽  
Reductive Cleavage ◽  
Ether Bond ◽  
Benzyl Ethers ◽  
Acid Catalyzed ◽  
Model Substances ◽  
Hydrolysis Of

Methyl 4-O-(3-methoxy-4-hydroxybenzyl) and methyl 4-O-(3,5-dimethoxy-4-hydroxybenzyl)-α-D-glucopyranoside and their 6-O-isomers were prepared as model substances for the ether lignin-saccharide bond by reductive cleavage of corresponding 4,6-O-benzylidene derivatives. Kinetic study of acid-catalyzed hydrolysis of the compounds prepared was carried out by spectrophotometric determination of the benzyl alcoholic groups set free, after their reaction with quinonemonochloroimide, and it showed the low stability of the p-hydroxybenzyl ether bond.

Stability-indicating UHPLC method for determination of nevirapine in its bulk form and tablets: identification of impurities and degradation kinetic study

2016 ◽  
Vol 126 ◽  
pp. 103-108 ◽  
Author(s):  
Naialy Fernandes Araújo Reis ◽  
Jéssica Camille de Assis ◽  
Sílvia Ligório Fialho ◽  
Gerson Antônio Pianetti ◽  
Christian Fernandes
Keyword(s):  
Kinetic Study ◽  
Degradation Kinetic ◽  
Stability Indicating

Faster determination of clottable fibrinogen in human plasma: an improved method and kinetic study.

1978 ◽  
Vol 24 (2) ◽  
pp. 351-353 ◽  
Author(s):  
Y Inada ◽  
H Okamoto ◽  
S Kanai ◽  
Y Tamaura
Keyword(s):  
Kinetic Study ◽  
Human Plasma ◽  
Normal Subjects ◽  
Fibrinogen Concentration ◽  
Improved Method ◽  
Km Value

Abstract Clottable fibrinogen in human plasma was determined by measuring spectrophotometrically the increase in turbidity with time due to the fibrinogen-fibrin conversion with thrombin. From the maximal absorbance, Amax, at 450 nm obtained 2 min or less after thrombin as added to plasma, we estimated the fibrinogen concentration in plasma of normal subjects and patients. Analysis of the rate of the absorbance increase yielded the Km value, 1.6 X 10(-5) mol/liter, which closely agrees with the Km of 1.2 X 10(-5) mol/liter obtained by analysis of the fibrinopeptides released from fibrinogen.

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