Intrinsic fiber optic absorption sensor for the detection of volatile organic compounds

1994 ◽  
Author(s):  
Gregory L. Klunder ◽  
Robert J. Silva ◽  
Richard E. Russo
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Fiber Optic ◽  
Volatile Organic

Detection of trace levels of volatile organic compounds using fiber optic Raman spectrometry

1995 ◽  
Author(s):  
Kenneth J. Ewing ◽  
Tom G. Bilodeau ◽  
Gregory M. Nau ◽  
Frank Bucholtz ◽  
Ishwar D. Aggarwal
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Fiber Optic ◽  
Raman Spectrometry ◽  
Volatile Organic

scholarly journals Highly sensitive and selective fiber-optic Fabry-Perot volatile organic compounds sensor based on a PMMA film

2017 ◽  
Vol 7 (6) ◽  
pp. 2111 ◽  
Author(s):  
Cai-Bin Yu ◽  
Yu Wu ◽  
Chen Li ◽  
Fan Wu ◽  
Jin-Hao Zhou ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Fiber Optic ◽  
Pmma Film ◽  
Highly Sensitive ◽  
Fabry Perot ◽  
Volatile Organic

scholarly journals Fiber-optic multi-sensor array for detection of low concentration volatile organic compounds

2013 ◽  
Vol 21 (17) ◽  
pp. 20119 ◽  
Author(s):  
Md. Rajibur Rahaman Khan ◽  
Byoung-Ho Kang ◽  
Sang-Won Lee ◽  
Su-Hwan Kim ◽  
Se-Hyuk Yeom ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Sensor Array ◽  
Fiber Optic ◽  
Low Concentration ◽  
Volatile Organic

Fiber Optic Micromirror Sensor for Volatile Organic Compounds

1990 ◽  
Vol 137 (4) ◽  
pp. 1325-1326 ◽  
Author(s):  
M. A. Butler ◽  
A. J. Ricco ◽  
R. Buss
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Fiber Optic ◽  
Volatile Organic

Fiber optic volatile organic compounds sensor based on polymer coated FBG refractometer

2011 ◽  
Author(s):  
Peng Wang ◽  
Serge Caron ◽  
Claude Paré ◽  
Franics Picard ◽  
Sébastien Dubus ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Fiber Optic ◽  
Volatile Organic

Core-Based Intrinsic Fiber-Optic Absorption Sensor for the Detection of Volatile Organic Compounds

1995 ◽  
Vol 49 (3) ◽  
pp. 379-385 ◽  
Author(s):  
Gregory L. Klunder ◽  
Richard E. Russo
Keyword(s):  
Volatile Organic Compounds ◽  
Aqueous Solutions ◽  
Organic Compounds ◽  
Silicone Rubber ◽  
Near Infrared ◽  
Fiber Optic ◽  
Limit Of Detection ◽  
Broad Band ◽  
Near Ir ◽  
Volatile Organic

A core-based intrinsic fiber-optic absorption sensor has been developed and tested for the detection of volatile organic compounds. The distal ends of transmitting and receiving fibers are connected by a small cylindrical section of an optically clear silicone rubber. The silicone rubber acts both as a light pipe and as a selective membrane into which the analyte molecules can diffuse. The sensor has been used to detect volatile organics (trichloroethylene, 1,1-dichloroethylene, and benzene) in both aqueous solutions and in the vapor phase or headspace. Absorption spectra obtained in the near-infrared (near-IR) provide qualitative and quantitative information about the analyte. Water, which has strong broad-band absorption in the near-IR, is excluded from the spectra because of the hydrophobic properties of the silicone rubber. The rate-limiting step is shown to be the diffusion through the Nernstian boundary layer surrounding the sensor and not the diffusion through the silicone polymer. The rate of analyte diffusion into the sensor, as measured by the t90 values (the time required for the sensor to reach 90% of the equilibrium value), is 30 min for measurements in aqueous solutions and approximately 3 min for measurements made in the headspace. The limit of detection obtained with this sensor is approximately 1.1 ppm for trichloroethylene in an aqueous solution.

Evanescent Fiber-Optic Chemical Sensor for Monitoring Volatile Organic Compounds in Water

1997 ◽  
Vol 69 (13) ◽  
pp. 2238-2246 ◽  
Author(s):  
Dianna S. Blair ◽  
Lloyd W. Burgess ◽  
Anatol M. Brodsky
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Chemical Sensor ◽  
Fiber Optic ◽  
Volatile Organic
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