Role of Complexation in Propranolol Sorption to Clay Minerals in the Presence of Fulvic and Humic Acid

2014 ◽  
Vol 926-930 ◽  
pp. 222-225
Author(s):  
Na Peng ◽  
Kai Feng Wang ◽  
Guo Guang Liu ◽  
Lin Ze Zeng ◽  
Han Wei Yan ◽  
...  
Keyword(s):  
Humic Acid ◽  
Fluorescence Quenching ◽  
Fulvic Acid ◽  
Clay Minerals ◽  
Fluorescence Quenching Method ◽  
Quenching Method ◽  
Ph Range

Sorption behaviors of propranolol (PRO) on montmorillonite and kaolinite in the presence of fulvic acid (FA) and humic acid (HA) were investigated. Complexation of propranolol with FA/HA also have been studied using the fluorescence quenching method. PRO could be complexed by FA and HA strongly in the 5-9 pH range. PRO sorption was found to be higher on montmorillonite than on kaolinite. In the presence of FA/HA, the sorption of PRO on montmorillonite and kaolinite was inhibited and enhanced respectively. The mechanism is due to the free PRO and complexed PRO has different affinity to montmorillonite and kaolinite surfaces.

scholarly journals Characterizing the Interaction between Antibiotics and Humic Acid by Fluorescence Quenching Method

2018 ◽  
Vol 15 (7) ◽  
pp. 1458 ◽  
Author(s):  
Runze Wang ◽  
Shengke Yang ◽  
Jie Fang ◽  
Zongzhou Wang ◽  
Yangyang Chen ◽  
...  
Keyword(s):  
Humic Acid ◽  
Fluorescence Quenching ◽  
Fluorescence Quenching Method ◽  
Quenching Method

HUMUS FRACTION RATIOS AS A MEANS OF DISCRIMINATING BETWEEN HORIZON TYPES

1980 ◽  
Vol 60 (2) ◽  
pp. 219-229 ◽  
Author(s):  
L. E. LOWE
Keyword(s):  
Organic Matter ◽  
Humic Acid ◽  
Carbon Content ◽  
Fulvic Acid ◽  
Soil Classification ◽  
Acid Fraction ◽  
Humus Fraction ◽  
Wide Range ◽  
Fraction Distribution

Humus fraction distribution in a wide range of horizon samples was examined by measuring carbon content in humic acid (Ch), in fulvic acid (Cf) and in the strongly colored polyphenolic component of the fulvic acid fraction (Ca). Fraction distribution was described by the ratios Ch/Cf and Ca/Cf. It was concluded that humus fraction ratios were related to horizon types as used in the Canadian System of Soil Classification, and were effective in discriminating between certain horizon types, particularly between Luvisolic Bt and Podzolic Bf. The results also suggested that humus fraction ratios may be effective in separating distinct sub-populations within Ah horizons and Bf horizons in general, based on qualitative differences in organic matter present. Aspects of the role of humus fractions in soil genesis are discussed.

Spectroscopic and molecular modeling studies of human serum albumin interaction with propyl gallate

RSC Advances ◽  
2014 ◽  
Vol 4 (110) ◽  
pp. 64559-64564 ◽  
Author(s):  
Jafar Ezzati Nazhad Dolatabadi ◽  
Vahid Panahi-Azar ◽  
Abolfazl Barzegar ◽  
Ali Akbar Jamali ◽  
Fahimeh Kheirdoosh ◽  
...  
Keyword(s):  
Molecular Modeling ◽  
Human Serum Albumin ◽  
Fluorescence Quenching ◽  
Serum Albumin ◽  
Human Serum ◽  
Propyl Gallate ◽  
Fluorescence Quenching Method ◽  
Molecular Modeling Studies ◽  
Quenching Method ◽  
First Time

For the first time, PG interaction with HSA using fluorescence quenching method, circular dichroism spectroscopy and molecular modeling was investigated.

Sign in / Sign up

Export Citation Format

Share Document