Title :
From molecular engineering of luminescent indicators to environmental analytical chemistry in the field with fiber-optic (bio)sensors
Author :
Orellana, G. ; Moreno-Bondi, M.C.
Author_Institution :
Fac. of Chem., Complutense Univ., Madrid, Spain
Abstract :
By combining one of the oxygen-sensitive membranes with a porous layer containing immobilized (innocuous) bacteria, we have developed an on-line biochemical oxygen demand (BOD) fiberoptic sensor that correlates with the BOD/sub 5/ parameter. The Optosen analytical signal (luminescence phase shift) and the corresponding calibration plots are measured by continuously feeding glucose/glutamic acid (GGA) BOD standard solutions through a flowthrough sample cell where the optode is placed.
Keywords :
biochemistry; biosensors; fibre optic sensors; molecular biophysics; photoluminescence; O/sub 2/; O/sub 2/-sensitive membranes; Optosen analytical signal; calibration plots; environmental analytical chemistry; fiber-optic biosensors; flowthrough sample cell; glucose/glutamic acid biochemical O/sub 2/ demand standard solutions; immobilized innocuous bacteria; luminescence phase shift; luminescent indicators; molecular engineering; on-line biochemical O/sub 2/ demand fiberoptic sensor; optode; porous layer; Biochemical analysis; Biomembranes; Biosensors; Board of Directors; Chemical and biological sensors; Chemistry; Luminescence; Microorganisms; Optical fiber sensors; Signal analysis;
Conference_Titel :
Optical Fiber Sensors Conference Technical Digest, 2002. Ofs 2002, 15th
Conference_Location :
Portland, OR, USA
Print_ISBN :
0-7803-7289-1
DOI :
10.1109/OFS.2002.1000515
