A GLASS ELECTRODE APPARATUS FOR MEASURING THE pH VALUES OF VERY SMALL VOLUMES OF SOLUTION
نویسندگان
چکیده
A glass electrode apparatus is described with which pH measurements can be made with as small volumes as 2 drops (about 0.14 cc.) of solution. Using this apparatus the change of pH of the vacuolar sap of Nitella, due to the penetration of brilliant cresyl blue, has been readily followed. The sap and the dye have been found to poison the usual type of hydrogen electrode.
منابع مشابه
pH VALUES OF VERY SMALL VOLUMES OF SOLUTION
In a recent article 1 the authors have described a new type of glass electrode, which is of convenient size, and a t the same time of sufficiently low resistance for accurate work. Such an electrode is shown diagrammatically on the right-hand side of Fig. 1. The lower end of glass tube A supports the glass diaphragm D which in our experiments has been about 0.001 ram. thick. The tube A is par t...
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ورودعنوان ژورنال:
- The Journal of General Physiology
دوره 12 شماره
صفحات -
تاریخ انتشار 2003