Real-Time Observation of Affinity Reactions Using Grating Couplers: Determination of the Detection Limit and Calculation of Kinetic Rate Constants

1997 ◽  
Vol 248 (2) ◽  
pp. 269-276 ◽  
Author(s):  
Rainer Polzius ◽  
Edgar Dießel ◽  
Frank F. Bier ◽  
Ursula Bilitewski
Keyword(s):  
Detection Limit ◽  
Real Time ◽  
Rate Constants ◽  
Kinetic Rate ◽  
Grating Couplers ◽  
Kinetic Rate Constants ◽  
Time Observation ◽  
Real Time Observation

Interfacial catalysis by phospholipase A2: determination of the interfacial kinetic rate constants

Biochemistry ◽  
1991 ◽  
Vol 30 (29) ◽  
pp. 7283-7297 ◽  
Author(s):  
Otto G. Berg ◽  
Bao Zhu Yu ◽  
Joe Rogers ◽  
Mahendra Kumar Jain
Keyword(s):  
Phospholipase A2 ◽  
Rate Constants ◽  
Kinetic Rate ◽  
Kinetic Rate Constants ◽  
Interfacial Catalysis

Real Time Observation of SiC Oxidation Using an In Situ Ellipsometer

2006 ◽  
Vol 527-529 ◽  
pp. 1031-1034 ◽  
Author(s):  
K. Kakubari ◽  
R. Kuboki ◽  
Yasuto Hijikata ◽  
Hiroyuki Yaguchi ◽  
Sadafumi Yoshida
Keyword(s):  
Real Time ◽  
Rate Constants ◽  
Oxidation Rate ◽  
Oxide Thickness ◽  
High Accuracy ◽  
Oxidation Time ◽  
The Real ◽  
Time Observation ◽  
Real Time Observation

Real time observation of SiC oxidation was performed using an in-situ ellipsometer over the temperature range from 900°C to 1150°C. The relations between oxide thickness and oxidation time were obtained precisely by virtue of the real time measurements. We analyzed the relations between oxide thickness and oxidation time by applying the Deal and Grove model to obtain the linear and parabolic rate constants. Taking advantage of in-situ measurements, we successfully obtained the oxidation rate constants with high accuracy.

scholarly journals Removal efficiencies and kinetic rate constants of xenobiotics by ozonation in tertiary treatment

2017 ◽  
Vol 75 (12) ◽  
pp. 2737-2746 ◽  
Author(s):  
Baptiste Mathon ◽  
Marina Coquery ◽  
Cécile Miege ◽  
Ywann Penru ◽  
Jean-Marc Choubert
Keyword(s):  
Rate Constants ◽  
Wastewater Treatment Plants ◽  
Batch Reactor ◽  
Chemical Oxidation ◽  
Secondary Effluent ◽  
Kinetic Rate ◽  
Kinetic Rate Constants ◽  
Removal Efficiencies ◽  
Elimination Pathway

This study gives a full overview of the chemical oxidation by ozone of selected xenobiotics usually present in effluents of conventional wastewater treatment plants. A qualitative and quantitative overview of literature data was made, and describes the ozonation efficiency and processes for the elimination of 12 xenobiotics (pesticides and pharmaceuticals). A database was built, compiling literature results of experimental ozonation assays in laboratory and real-scale conditions. Special attention was paid to selecting the data and compiling reliable results on removal efficiencies and kinetic parameters. An original study was performed in a semi-batch reactor applying ozone on secondary effluent spiked beforehand with a cocktail of 12 xenobiotics. The results of this study were compared with the literature data to evaluate the influence of the kinetic competition of xenobiotics in spiked wastewater in the determination of kinetic rate constants. These 12 xenobiotics were classified into three groups (high-/medium-/low-oxidizable) according to the ranges of their direct kinetic rate constants (kO3). A best effective ozone dose between 0.2 and 0.4 gO3 gDOC−1 is proposed for the elimination of xenobiotics. The predominant elimination pathway between direct and indirect oxidation was identified for each xenobiotic.

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