title: Use of platinum electrodes for the electrochemical detection of bacteria.
abstract: Platinum electrodes with surface area ratios of four to one were used to detect and enumerate a variety of gram-positive and gram-negative organisms. Linear relationships were established between inoculum size and detection time. End points for platinum electrodes were similar to those obtained with a platinum-reference electrode combination. Shape of the overall response curves and length of detection times for gram-positive organisms were markedly different than those for the majority of gram-negative species. Platinum electrodes are better than the platinum-reference electrode combination because of cost, ease of handling, and clearer definition of the end point.
mesh_terms: D001419:Bacteria / Q000302:isolation & purification* / Q000378:metabolism; D004566:Electrodes; D005069:Evaluation Studies as Topic; D006859:Hydrogen / Q000378:metabolism; D010984:Platinum; D013045:Species Specificity
chemical_list: D010984:Platinum; D006859:Hydrogen