No sacrifice in response or efficiency. Choose a Sargent combination pH electrode by size alone.
Both of these Sargent combination pH electrodes cover the entire pH range from 0 to 14 pH. Both offer fast, linear r e s p o n s e even in highly acid solutions. Response to alkali ions is insignificant below pH 12.5 (at higher pH, response is low and stable). Both electrodes achieve high efficiency, with a millivolt/pH response close to the Nernst coefficient. And you get this kind of performance over a range of 0 to 80°C. These electrodes also feature all-glass, shock-resistant construction. No rubber or plastic to contaminate samples. No pockets to trap solutions or hamper cleaning. Stainless-steel caps provide sure, strong clamping. What's the difference, then, between these two combination pH electrodes? Size alone. For samples as small as Vz ml or those in extremely confined volumes, choose the miniature electrode (priced at $40.00). Otherwise, your best choice is the standardsize ($38.00). Both come with connecting cable and plugs to fit all popular pH meters. Call your Sargent man or write to us for a closer look at these combination pH electrodes or for data on our complete line of glass and reference electrodes.
SARGENT' Scientific laboratory instruments, apparatus, chemicals. E. H. Sargent & Co. 4647 Foster Ave., Chicago, III. 60630
Chicago/Anaheim, Cal if./ Birmingham Cincinnati/Cleveland/Dallas/Denver Detroit/Springfield, N.J./Toronto, Canada
Circle No. 91 on Readers' Service Card 134 A
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ANALYTICAL CHEMISTRY
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