TY - JOUR
T1 - Experimental results on an optical pH measurement system for bioreactors
AU - Holobar, Andrej
AU - Weigl, Bernhard H.
AU - Trettnak, Wolfgang
AU - Benes, Roman
AU - Lehmann, Hartmut
AU - Rodriguez, Nena V.
AU - Wollschlager, Arnold
AU - O'Leary, Paul
AU - Raspor, Peter
AU - Wolfbeis, Otto S.
PY - 1993/3/1
Y1 - 1993/3/1
N2 - Properties of a pH-sensitive membrane have been tested with respect to its possible application in bioreactors. The influences of ionic strength, buffer type, buffer capacity, color and turbidity of the solution on the response of the membrane are studied. The developed membrane shows high reproducibility and long-term stability. The pH-sensing membrane can be sterilized chemically and by using heat. With the present opto-electronic set-up, an accuracy of ±0.1 pH between pH 6 and 10 can be achieved.
AB - Properties of a pH-sensitive membrane have been tested with respect to its possible application in bioreactors. The influences of ionic strength, buffer type, buffer capacity, color and turbidity of the solution on the response of the membrane are studied. The developed membrane shows high reproducibility and long-term stability. The pH-sensing membrane can be sterilized chemically and by using heat. With the present opto-electronic set-up, an accuracy of ±0.1 pH between pH 6 and 10 can be achieved.
UR - https://www.scopus.com/pages/publications/0027555210
U2 - 10.1016/0925-4005(93)85283-G
DO - 10.1016/0925-4005(93)85283-G
M3 - Article
AN - SCOPUS:0027555210
SN - 0925-4005
VL - 11.1993
SP - 425
EP - 430
JO - Sensors and Actuators: B. Chemical
JF - Sensors and Actuators: B. Chemical
IS - 1-3
ER -