Chemical characterization of selected high copper dental amalgams using XPS and XRD techniques

Bentonite is a clay with interesting surface properties (affinity for water, adsorption capacity for electro-positive compounds….). The characteristics and clarifying properties of bentonite from various companies are the subject of numerous studies. The present work focuses on the study of the efficiency of bentonite and modified bentonite to purify aqueous solutions containing organic pollutants such as phenol. First, before starting the adsorption study, a physical–chemical characterization of the clay by FTIR, BET and XRD techniques was undertaken. The specific surface of the bentonite is calculated by BET. Then, the study of isotherms and kinetics of phenol adsorption on commercial BTC showed that this pollutant can be removed from liquid effluents with a significant percentage. Langmuir and Freundlich models were applied. Finally, the kinetic study performed by UV–Visible was reproduced by FTIR spectroscopy.

Download Full-text

Olfactory and Chemical Characterization of Indoor Air-Towards a Psychophysical Model for Air Quality

PsycEXTRA Dataset ◽

10.1037/e612282010-001 ◽

1981 ◽

Author(s):

Birgitta Berglund ◽

Ulf Berglund ◽

Thomas Lindvall ◽

Helene Nicander-Bredberg

Keyword(s):

Air Quality ◽

Indoor Air ◽

Chemical Characterization

Download Full-text

The physical and chemical characterization of active carbons, by adsorption and immersion techniques

Journal de Chimie Physique ◽

10.1051/jcp/1984810785 ◽

1984 ◽

Vol 81 ◽

pp. 785-790 ◽

Cited By ~ 9

Author(s):

F. Stoeckli ◽

F. Kraehenbuehl ◽

A. Lavanchy ◽

U. Huber

Keyword(s):

Chemical Characterization ◽

Active Carbons ◽

Physical And Chemical Characterization ◽

Physical And Chemical

Download Full-text

Biological and physico-chemical characterization of ultra high diluted Hydrastis canadensis and in vitro studies on mammalian cells

Allgemeine Homöopathische Zeitung ◽

10.1055/s-0037-1601241 ◽

2017 ◽

Vol 262 (02) ◽

pp. 2-76

Author(s):

N Chandrakar ◽

MK Temgire ◽

SG Kane ◽

AK Suresh ◽

J Bellare

Keyword(s):

Mammalian Cells ◽

Chemical Characterization ◽

In Vitro Studies ◽

Hydrastis Canadensis ◽

Physico Chemical

Download Full-text

PURIFICATION AND PARTIAL CHEMICAL CHARACTERIZATION OF SHEEP NEUROPHYSIN

Acta Endocrinologica ◽

10.1530/acta.0.0740226 ◽

1973 ◽

Vol 74 (2) ◽

pp. 226-236 ◽

Cited By ~ 6

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.

Download Full-text