Acidic Dissociation of Chlorodifluoroacetic Acid:  Determination ofK°, ΔH°, and ΔS°

1998 ◽  
Vol 43 (6) ◽  
pp. 1068-1071 ◽  
Author(s):  
Robert I. Gelb ◽  
Joseph S. Alper
Keyword(s):  
Acidic Dissociation ◽  
Chlorodifluoroacetic Acid ◽  
Acid Determination

PURIFICATION AND PARTIAL CHEMICAL CHARACTERIZATION OF SHEEP NEUROPHYSIN

1973 ◽  
Vol 74 (2) ◽  
pp. 226-236 ◽  
Author(s):  
Michel Chrétien ◽  
Claude Gilardeau
Keyword(s):  
Amino Acid ◽  
Polyacrylamide Gel Electrophoresis ◽  
Chemical Characterization ◽  
Terminal Amino Acid ◽  
Amino Acid Determination ◽  
Pituitary Glands ◽  
Terminal Amino ◽  
Partial Chemical ◽  
Acid Determination

ABSTRACT A protein isolated from ovine pituitary glands has been purified, and its homogeneity assessed by NH2- and COOH-terminal amino acid determination, ultracentrifugation studies, and polyacrylamide gel electrophoresis after carboxymethylation. Its chemical and immunochemical properties are closely similar to those of beef and pork neurophysins, less similar to those of human neurophysins. It contains no tryptophan (like other neurophysins) or histidine (like all except bovine neurophysin-I and human neurophysins). It has alanine at the NH2-terminus and valine at the COOH-terminus. Its amino acid composition is similar to, but not identical with those of porcine and bovine neurophysins.

Determination of acidic dissociation constants of L-phenylalanyl-glycine and L-alanyl-L-alanine in water using ab initio methods

2014 ◽  
Vol 2 (42) ◽  
pp. 263-263
Author(s):  
Farhoush Kiani ◽  
Mahmoud Tajbakhsh ◽  
Fereydoon Ashrafi ◽  
Nesa Shafiei ◽  
Azar Bahadori ◽  
...  
Keyword(s):  
Ab Initio ◽  
Dissociation Constants ◽  
Ab Initio Methods ◽  
Acidic Dissociation

scholarly journals FACTORS AFFECTING FOLIC ACID DETERMINATION

1947 ◽  
Vol 170 (2) ◽  
pp. 739-746
Author(s):  
Esther P. Daniel ◽  
O.L. Kline
Keyword(s):  
Folic Acid ◽  
Factors Affecting ◽  
Acid Determination

scholarly journals Determination of free amino acids in plants by liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS)

2015 ◽  
Vol 7 (18) ◽  
pp. 7574-7581 ◽  
Author(s):  
Magdalena M. Dziągwa-Becker ◽  
Jose M. Marin Ramos ◽  
Jakub K. Topolski ◽  
Wiesław A. Oleszek
Keyword(s):  
Mass Spectrometry ◽  
Amino Acids ◽  
Liquid Chromatography ◽  
Amino Acid ◽  
Tandem Mass Spectrometry ◽  
Free Amino ◽  
Tandem Mass ◽  
Amino Acid Determination ◽  
Acid Determination

Free amino acid determination in plants by LC-MS/MS.

Highly stable and ultrasensitive chlorogenic acid sensor based on metal–organic frameworks/titanium dioxide nanocomposites

The Analyst ◽  
2016 ◽  
Vol 141 (15) ◽  
pp. 4647-4653 ◽  
Author(s):  
Yang Wang ◽  
Huanhuan Chen ◽  
Xiaoya Hu ◽  
Hai Yu
Keyword(s):  
Titanium Dioxide ◽  
Chlorogenic Acid ◽  
Electrode Materials ◽  
Metal Organic Frameworks ◽  
Improved Stability ◽  
Metal Organic ◽  
Acid Determination

Metal–organic frameworks/titanium dioxide nanocomposites were utilized as novel electrode materials for ultrasensitive chlorogenic acid determination with improved stability.

scholarly journals Pimelic Acid Determination with Resting Cell System ofBacillus sphaericusAKU 0218

1983 ◽  
Vol 47 (7) ◽  
pp. 1649-1650
Author(s):  
Masahiro Ohsugi ◽  
Kayoko Miyauchi ◽  
Yasuko Inoue
Keyword(s):  
Cell System ◽  
Pimelic Acid ◽  
Resting Cell ◽  
Acid Determination

A critical analysis of the use of sialic acid determination in the diagnosis of malignancy

1991 ◽  
Vol 58 (1-2) ◽  
pp. 91-100 ◽  
Author(s):  
R. O'Kennedy ◽  
G. Berns ◽  
E. Moran ◽  
H. Smyth ◽  
K. Carroll ◽  
...  
Keyword(s):  
Sialic Acid ◽  
Critical Analysis ◽  
Acid Determination

QSTR mathematical models for the toxicity of aliphatic carboxylic acids on tetrahymena pyriformis

2013 ◽  
Vol 22 (2) ◽  
Author(s):  
Zoița Mărioara Berinde
Keyword(s):  
Dissociation Constant ◽  
Carboxylic Acids ◽  
Aquatic Toxicity ◽  
Tetrahymena Pyriformis ◽  
Refraction Index ◽  
Linear Regression Models ◽  
Acidic Dissociation ◽  
Growth Assay ◽  
Aliphatic Carboxylic Acids ◽  
Acidic Dissociation Constant

The present work represents an attempt to improve QSTR models for aquatic toxicity of 3838 aliphatic carboxylic acids tested in the Tetrahymena pyriformis population growth assay, using the topological index ZEP and the following nine main electrotopological and molecular descriptors: acidic dissociation constant, 1-octanol/water partition coefficient, the energy of the lowest unoccupied molecular orbital, acidic dissociation constant, molar refractivity, refraction index, surface tension, polarizability and, electrotopological states. Several different relations between toxicity [loglog(IGC50-1)] and the molecular and topological properties were examined, and a group of multiple linear regression models with high fitness scores were generated.

Amperometric sensor for L-ascorbic acid determination based on MnO 2 bulk modified screen printed electrode

2000 ◽  
Vol 368 (5) ◽  
pp. 466-470 ◽  
Author(s):  
E. Turkusic ◽  
V. Milicevic ◽  
H. Tahmiscija ◽  
M. Vehabovic ◽  
S. Basic ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Amperometric Sensor ◽  
Screen Printed Electrode ◽  
Ascorbic Acid Determination ◽  
Acid Determination ◽  
Screen Printed
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