Chem. J. Chinese Universities ›› 2001, Vol. 22 ›› Issue (2): 215.

• Articles • Previous Articles     Next Articles

Plant Tissue-based Chemiluminescence Flow Biosensor for the Determination of Oxalate

PENG You-Yuan1, QIN Wei2, ZHANG Zhu-Jun2   

  1. 1. Department of Chemistry, Quanzhou Normal College, Quanzhou 362000, China;
    2. Department of Chemistry, Shaanxi Normal University, Xi'an 710062, China
  • Received:2000-01-21 Online:2001-02-24 Published:2001-02-24

Abstract: Anovel chemiluminescence(CL) biosensor for the determination of oxalate is presented in this paper. It is based on the CLreaction between luminol, immobilized on an anion-exchange column, and hydrogen peroxide generated on-linevia oxalate by the catalytic effect of oxalate oxidase in spinach in the flow cell. The biosensor responds linearly to oxalate concentration in the range of 4.0×10-7 to 1.0×10-4 mol/L, and the detection limit is 2×10-7 mol/L. Acomplete analysis could be performed in 1 min with a relative standard deviation of 3.7% for 1.0×10-5 mol/Loxalate(n=7). The system is stable for over 200 times determinations and has been applied in urine samples.

Key words: Biosensor, Flow injection, Chemiluminescence, Oxalate

CLC Number: 

TrendMD: