Variance in Streaming Potential Measurements (Journal Club)
This paper (Variance of Streaming Potential) examines the sources of error in zetapotential measurements. Jess and Zydney both cite it in their EO papers as a source of experimental procedure – in particular this paper found that waiting for the pressure to equilibrate at discrete timepoints works better than a continuous ramp-up in pressure. From the abstract:
Our study indicated that the kinetics of equilibration between electrolyte, electrodes, and membrane has the greatest impact on measurement uncertainty of any method used.
Since I’ve been having lots of trouble with my electrodes, I’ve come to know this paper pretty well. It’s useful not only because it has the kind of data I’m looking to get from my setup, i.e. Zetapotential vs. pH graphs, as pictured:
But also because it has some real detail when it comes to experimental procedures, like these: