A simple densitometer for paper electrophoresis

Electrophoresis

“…Improvements in conventional apparatus include a means of regulating the moisture content of paper strips by uniform pressure supplied by a rubber bladder inflated with coolant ( 56 of temperature control (240), series connected potentiometers for current regulation (594), and the use of a super-imposed alternating current which is said to improve resolution (814)• A number of densitometers for scanning electrophorograms have been described (82, 720,825,943), including ones that record, integrate, or are otherwise automated (78,237,428,937). The use of interference filters in densitometry has been discussed (669).…”