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07531 Use of FTIR In Situ Technique to Evaluate MIC by SRB

Picture for 07531 Use of FTIR In Situ Technique to Evaluate MIC by SRB
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Product Number: 51300-07531-SG
ISBN: 07531 2007 CP
Author: Matilde de Romero, Reynaldo Ortiz, Olga Marquez, Jairo Marquez, and Maria E. Romero-Gonzalez
Publication Date: 2007
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Infrared Spectroscopy Technique based on diffuse, internal and external reflectance allows both, the performance of a general qualitative analysis of the structure and the identification of organic and inorganic compounds, through the excitation of molecular vibrations by light absorption. Through the technique, vibrational data is obtained from the surface film, determining the nature of the molecules adsorbed on the metallic surface. Different researchers have given their attention and efforts to the study of the interfase region, by using Fourier Transformed Infrared Spectroscopy (FTIR) with Attenuated Total Reflectance (ATR). These efforts have mainly evaluated the Extracellular Polymeric Substances (EPS) and their contribution to corrosion. In order to improve the understanding of the role of bacterial biofilm formed during Microbiologically Influenced Corrosion (MIC) processes, in situ FTIR was used to study changes on the surface under the biofilm and analyze the effect of bacterial activity. In this study, FTIR was used in conjunction with a potentiostat/galvanostat coupled to a newly developed electrochemical cell to follow up the reactions generated during MIC processes by Sulphate Reducing Bacteria (SRB).
Infrared Spectroscopy Technique based on diffuse, internal and external reflectance allows both, the performance of a general qualitative analysis of the structure and the identification of organic and inorganic compounds, through the excitation of molecular vibrations by light absorption. Through the technique, vibrational data is obtained from the surface film, determining the nature of the molecules adsorbed on the metallic surface. Different researchers have given their attention and efforts to the study of the interfase region, by using Fourier Transformed Infrared Spectroscopy (FTIR) with Attenuated Total Reflectance (ATR). These efforts have mainly evaluated the Extracellular Polymeric Substances (EPS) and their contribution to corrosion. In order to improve the understanding of the role of bacterial biofilm formed during Microbiologically Influenced Corrosion (MIC) processes, in situ FTIR was used to study changes on the surface under the biofilm and analyze the effect of bacterial activity. In this study, FTIR was used in conjunction with a potentiostat/galvanostat coupled to a newly developed electrochemical cell to follow up the reactions generated during MIC processes by Sulphate Reducing Bacteria (SRB).
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