The colloidal researchers of the late 19th century and early 20th centuries routinely de-ionized mixtures of particulates and ions (like LVDC EIS) by a standard method, the Graham dialyzer, using a bottle with its bottom cracked off. I presume a bottle was used because its screw-cap makes it easy to seal a dialysis diaphragm, and a tall (e.g. like an olive oil decanter) glass bottle provides a pressure head and chemical inertness inexpensively. I recall Richard Harris mentioning how to crack the bottom off a glass bottle to make a wide-mouth inert non-floating funnel for thermal stirring. Has anybody any experience with using the same method to make a Graham dialyzer to de-ionize EIS? Thanks in advance for your advice!
Best regards, Matthew
