中文

Journal of Applied Sciences ›› 1990, Vol. 8 ›› Issue (3): 271-274.

• Research Notes • Previous Articles     Next Articles

A NEW Cr(VI)-ION SENSITIVE SEMICONDUCTOR DEVICE OF PVC MATRIX MEMBRANE

FANG PEISHENG1, HUANG JIANG1, FENG DAMING2   

  1. 1. Xian Jiao long University;
    2. Guangzhou Research Institute of Non-ferrous Metale
  • Received:1987-10-24 Revised:1988-10-17 Online:1990-09-30 Published:1990-09-30

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Abstract: This paper presents an integrated circuit technique with the aid of Si3N4/SiO2 as the insulator film, and PVC matrix membrane. The Cr6+-ISFET is developed. The test result has shown that Cr6+-ISFET exhibits a linear response to Cr ions within the concentration range of 1×10-2~1×10-5M. The calibration plots have a slope of 56 mV/PCr3F at 25℃. The lower concentration limit of the linear response to Cr (Ⅵ) ions may be 1×10-5M in HF solution.