Combined ion selective electrode and fluorescence quenching detection for copper-dissolved organic matter titrations

1986 ◽  
Vol 58 (2) ◽  
pp. 398-401 ◽  
Author(s):  
Stephen E. Cabaniss ◽  
Mark S. Shuman
Keyword(s):  
Organic Matter ◽  
Fluorescence Quenching ◽  
Dissolved Organic Matter ◽  
Ion Selective Electrode ◽  
Selective Electrode

scholarly journals Effect of Composting on Dissolved Organic Matter in Animal Manure and Its Binding with Cu

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Fengsong Zhang ◽  
Yanxia Li ◽  
Xiong Xiong ◽  
Ming Yang ◽  
Wei Li
Keyword(s):  
Organic Matter ◽  
Fluorescence Quenching ◽  
Dissolved Organic Matter ◽  
Animal Manure ◽  
Binding Ability ◽  
Excitation Emission Matrix ◽  
Complexing Capacity ◽  
Agricultural Application ◽  
Fluorescence Quenching Titration ◽  
Cu Ions

The agricultural application of raw animal manure introduces large amounts of dissolved organic matter (DOM) into soil and would increase transport of heavy metals such as Cu which are widely present in animal manure. The purpose of this research was to evaluate the evolution of DOM from pig and cattle manures during composting through excitation-emission matrix (EEM) fluorescence spectroscopy and the binding ability of DOM toward copper (Cu) ions with the aid of fluorescence quenching titration. The excitation-emission matrix spectra indicated that tyrosine-like, tryptophan-like, and soluble microbial byproduct-like fluorescence decreased significantly, while humic-like and fulvic-like fluorescence increased and became the main peaks in composted manure DOM. Fluorescence quenching titration showed that the complexing capacities of pig and cattle manure DOM decreased after composting. Correlation analysis confirmed that complexing capacity of DOM positively and significantly correlates with tyrosine-like and soluble microbial byproduct-like materials which mostly degraded after composting. These results would suggest that the ability of manure DOM to complex with Cu is inhibited as a result of reduced protein-like materials after composting.

Fluorescence quenching effects of antibiotics on the main components of dissolved organic matter

2015 ◽  
Vol 23 (6) ◽  
pp. 5667-5675 ◽  
Author(s):  
Peng-Fei Yan ◽  
Zhen-Hu Hu ◽  
Han-Qing Yu ◽  
Wei-Hua Li ◽  
Li Liu
Keyword(s):  
Organic Matter ◽  
Fluorescence Quenching ◽  
Dissolved Organic Matter ◽  
Main Components

scholarly journals Copper complexing properties of dissolved organic matter: PARAFAC treatment of fluorescence quenching

2010 ◽  
Vol 106 (1) ◽  
pp. 107-116 ◽  
Author(s):  
Stéphane Mounier ◽  
Huiyu Zhao ◽  
Cédric Garnier ◽  
Roland Redon
Keyword(s):  
Organic Matter ◽  
Fluorescence Quenching ◽  
Dissolved Organic Matter ◽  
Complexing Properties
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