Differential pulse polarography (DPP) with Computrace VA 757 (Metrohm, Switzerland) polarograph
equipped with dropping mercury electrode as working electrode, Pt rod as auxiliary electrode, and Ag/AgCl reference electrode was exploited to evaluate iron reduction capability of bacterial isolates.
Britton Robinson buffer was prepared by known method Amperometric titration were made on SYSTRONIC 1634 polarograph
Moreover, they employed cathodic-ray polarograph
which is far more inferior to the current technique of DPP concerning the improved calibration range and lower detection limits in the later case.
The universal polarograph
OH-105 has a reference potential of -4V and the starting potential is 1.
The polarograms were recorded with a Recorder Polarograph
By means of the polarograph
the dissolved oxygen concentration can be rapidly and accurately ascertained regardless of the character of the sample.
An ELICO (CL-25D) polarograph
in conjunction with ELICO chart recorder (LR101P), ELICO pH-meter (LI-120), a Julabo F-40 HC (West-Germany) circulating cryostat and sergent capillary with characteristics, m=1.
The electrochemistry group is comprised of pH and ISE electrodes and meters, titrators, oxygen analyzers (DO/ COD/BOD) and polarographs