Translated Titles

Application of an Amperometric Sensor for the Detection of Monosodium Glutamate


張谷昇(Ku-Shang Chang);陳建源(Chien-Yuan Chen)

Key Words

L-麩胺酸 ; L-麩胺酸氧化酶 ; 生物感測器 ; L-glutamate ; L-glutamate oxidase ; Biosensor ; PVA-SbQ



Volume or Term/Year and Month of Publication

1卷1期(2003 / 06 / 01)

Page #

51 - 56

Content Language


Chinese Abstract


English Abstract

A highly sensitive and stable L-glutamate sensor was fabricated for the rapid detection of the monosodium glutamate. L-glutamate oxidase was immobilized in a polymeric matrix containing a photo-crosslinkable polymer. The sensor exhibited remarkable long-term stability in storage (five months in the dry dark state). The sensor response remained stable for ten hours even in a continuously stirred medium. This indicates a good operational stability of the enzymatic electrode and suggests this biosensor is suitable for multiple-use or continuous analysis. The enzyme electrode exhibited a linear calibration range in concentrations of monosodium glutamate (MSG) from 50 nM to 100μM, with a correlation coefficient of 0.997 (n= 10). The detection limit of MSG was 50 nM (S/N=3).

Topic Category 社會科學 > 管理學