Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/9326
Title: Comparison of BOD optical fiber biosensors based on different microorganisms immobilized in ormosil matrixes
Authors: Dai, YJ
Lin, L
Li, PW
Chen, X
Wang, XR
Wong, KY 
Keywords: BOD biosensor
Microorganisms
Ormosils
Sol-gel
Issue Date: 2004
Source: International journal of environmental analytical chemistry, 2004, v. 84, no. 8, p. 607-617 How to cite?
Journal: International Journal of Environmental Analytical Chemistry 
Abstract: Fiber-optical microbial sensors for determination of biochemical oxygen demand (BOD) are described. Sensing films consisting of layers of an oxygen-sensitive fluorescent material and two different kinds of seawater microorganisms immobilized in poly(vinyl alcohol) sol-gel matrix were investigated. Tris(4,7-diphenyl-1,10-phenanthroline)ruthenium(II) perchlorate was used as the oxygen fluorescent quenching indicator. After preconditioning, the BOD biosensors could consistently perform well for up to one month. For films of domestic bacilli and films of sieved bacteria from seawater, the linear fluctuant coefficients (R2) in the range of 4-200 mg/L were 0.9975 and 0.9783 when a glucose/glutamate BOD standard was applied. The relative error of standard deviations for the two microorganism-immobilized BOD sensing films were within 4% and 2% of the mean value, respectively. The effects of temperature, pH and sodium chloride concentration on the two microbial films were also studied. For low biochemical oxygen demand, a film of sieved bacteria from seawater had superior sensitivity and is expected to be developed further.
URI: http://hdl.handle.net/10397/9326
ISSN: 0306-7319
DOI: 10.1080/03067310310001658302
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

22
Last Week
0
Last month
0
Citations as of Aug 14, 2017

WEB OF SCIENCETM
Citations

19
Last Week
0
Last month
0
Citations as of Aug 21, 2017

Page view(s)

34
Last Week
3
Last month
Checked on Aug 20, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.