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L-LACTIC ACID DETERMINATIONIN MILK PRODUCTS BASED ONA FIBRE OPTIC BIOSENSOR AND FLOW INJECTION ANALYSIS(FIA)
Dremel, Bernd A. A. Trott-Kriegeskorte, Gundula Schaffar, Bernhard P. H. Schmid, Rolf D.
Dremel, Bernd A. A.
Trott-Kriegeskorte, Gundula
Schaffar, Bernhard P. H.
Schmid, Rolf D.
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Issue Date
1989
Submitted date
2023-12-13
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Abstract
Anew methodfor the determinationof L -lactic acid using a fibre optic lactic acid biosensorin combination with a flow injection system (FIA) is presented. The biosensoris based ona fibre optic oxygen optrode which measures the oxygen consumption via dynamic quenching of the fluorescence of a dye by molecular oxygen. Lactic acid oxidaseis immobilised onto the surface of the oxygen optrode. For the detection of L- lactic acid in milk products, sample pretreatment proved necessary for protection of the biosensor. As a consequencethe samples were automatically diluted and buffered by meansof a FIA-system.
Citation
Biosensors : applications in medicine, environmental protection and process control, 225 - 228
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Book chapter
conference paper
conference paper
Language
en
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Series/Report no.
GBF monographs ; Volume 13
ISSN
0930-4320
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ISBN
3527280324
0895739550
0895739550
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Attribution-NonCommercial-ShareAlike 4.0 International