Fabrication of Redox Potential Microelectrodes for Studies in Vegetated Soils or Biofilm Systems

摘要: A new method for construction of redox potential microelectrodes has been successfully developed in this study. The consists four major steps: (a) pulling a glass pipet; (b) trimming the micropipet tip to obtain suitable size; (c) filling with low-melting point alloy; and (d) plating platinum onto alloy surface. This can be used make sizes as small 1-3 μm biofilm research between 20 40 in-situ measurements plant-grown soil systems. retain their characteristics few weeks. high Nernst slope (57-61 mV/pH unit using pH buffer solutions saturated quinhydrone calibrate electrodes), short response time (ca. 0 s 3 min), tolerance capacity interference ions, increased rigidity are features which studies both