TY - JOUR
T1 - Ultra micro glutamate sensor using platinized carbon-fiber electrode and integrated counter electrode
AU - Tamiya, Eiichi
AU - Sugiura, Yoko
AU - Takeuchi, Toshifumi
AU - Suzuki, Masayasu
AU - Karube, Isao
AU - Akiyama, Akitane
PY - 1993/2
Y1 - 1993/2
N2 - An integrated ultra micro glutamate sensor has been constructed with a 7 μm diameter platinized carbon-fiber disk (PCD) electrode and a platinum thin-film (PTF) counter electrode fabricated on the glass capillary tube. By platinization, the electrode activity of the carbon fiber is improved. In order to obtain a stable response, a pulse potential is applied for hydrogen peroxide measurement. The PTF counter electrode shows good stability and can be used as a substitute for a silver-silver chloride electrode. Since the integrated PCD electrode shows good characteristics as a hydrogen peroxide sensor, glutamate oxidase is immobilized onto the tip of the PCD electrode to construct the ultra micro glutamate sensor. The sensor shows stable response to glutamate and a response time within 12 s. The calibration range for glutamate measurement is 50-800 μM.
AB - An integrated ultra micro glutamate sensor has been constructed with a 7 μm diameter platinized carbon-fiber disk (PCD) electrode and a platinum thin-film (PTF) counter electrode fabricated on the glass capillary tube. By platinization, the electrode activity of the carbon fiber is improved. In order to obtain a stable response, a pulse potential is applied for hydrogen peroxide measurement. The PTF counter electrode shows good stability and can be used as a substitute for a silver-silver chloride electrode. Since the integrated PCD electrode shows good characteristics as a hydrogen peroxide sensor, glutamate oxidase is immobilized onto the tip of the PCD electrode to construct the ultra micro glutamate sensor. The sensor shows stable response to glutamate and a response time within 12 s. The calibration range for glutamate measurement is 50-800 μM.
UR - http://www.scopus.com/inward/record.url?scp=0027541089&partnerID=8YFLogxK
U2 - 10.1016/0925-4005(93)87003-8
DO - 10.1016/0925-4005(93)87003-8
M3 - 学術論文
AN - SCOPUS:0027541089
SN - 0925-4005
VL - 10
SP - 179
EP - 184
JO - Sensors and Actuators, B: Chemical
JF - Sensors and Actuators, B: Chemical
IS - 3
ER -