Chinese Journal of Applied Chemistry ›› 2017, Vol. 34 ›› Issue (7): 847-854.DOI: 10.11944/j.issn.1000-0518.2017.07.160414

• Full Papers • Previous Articles    

Gas-sensing Properties to Ethylenediamine Based on Tetraphenylporphyrin Iron Sensitive Film Optical Waveguide Sensor

WANG Jiaminga,GULMIRA·Turdia,YAN Yinab,PAYZULLA·Ibirayimhajia,ABLIZ Yimita*()   

  1. aCollege of Chemistry and Chemical Engineering,Xinjiang University,Urumqi 830046,China
    bCollege of Chemistry and Environmental Science,Kashgar University,Kashgar,Xinjiang 844006,China
  • Received:2016-10-14 Accepted:2017-01-19 Published:2017-07-04 Online:2017-07-04
  • Contact: ABLIZ Yimit
  • Supported by:
    Supported by the National Natural Science Foundation of China(No.21265020)

Abstract:

To detect ethylenediamine gas produced by the degradation of flavor during food deterioration process, tetraphenylporphyrin iron was synthesized via Alder method and its thin film/K+ exchanged glass waveguide sensor were prepared by spin coating. This sensor exhibits selective and high sensitive response to ethylenediamine. In the volume ratio range of 1×10-10~1×10-4(V/V0), there is a good linear relationship between the volume ratio and output light intensity(R=0.9940). The response time and recovery time are 3 s and 11 s, respectively. The signal to noise ratio(S/N) is 4.8, RSD=0.5%(V/V0=1×10-7). Good linear relationship between the volume ratio and output light intensity(R=0.9985) in parallel experiments also proves the accuracy of this sensor toward ethylenediamine gas detection. This sensor has potential application in the field of food quality examination.

Key words: tetraphenylporphyrin iron, optical waveguide sensor, ethylenediamine, gas sensing