Chemistry Reference
In-Depth Information
should be replaced. The increase of the resistance for the electrodes
immersed in artificial sweat is somewhat higher, probably because this solu-
tion is more complicated. In addition, other ions play a role and can affect
the condition of the textile electrodes.
The electrodes immersed in waste-water from a textile-finishing plant
show completely different behaviour. The resistance of the electrodes
increases fairly rapidly in the first part of the experiment and then becomes
relatively constant. In this case, a chemical present in the waste-water solu-
tion adsorbs strongly (possibly a sulphide-containing component) at the
surface of the electrode, blocking it completely. Once the adsorption
process is finished, the resistance does not change drastically.
9.4
Conclusion
All these tests show that quality control is important, and that the method
developed and described in this chapter is useful and interesting for that
purpose.
9.5
References
1. Kissinger P.I., Heinemann W.R.,
Laboratory techniques in electroanalytical chem-
istry
, Marcel Dekker, New York, 1996.
2. Kear G., Barker B.D., Walsh F.C.,
Corrosion
,
60
(2004) 561-575.
