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. Author manuscript; available in PMC: 2017 May 6.
Published in final edited form as: Curr Protoc Microbiol. 2016 May 6;41:1F.4.1–1F.4.18. doi: 10.1002/cpmc.5

Figure 3. Schematic of setup for measuring proton pumping.

Figure 3

Necessary equipment and accessories for monitoring proton pumping in small (∼0.5 mL) volumes. This apparatus should be set up in a room that can be completely darkened. The foil-covered shield helps to prevent heating of the water bath; if necessary, the top of the water bath and pH probe can also be wrapped in foil to prevent heating (not pictured).