Specialized Tools for Electrophysiology and Cell Biology Research


Product Summary

Accurate and stable buffers for pH and redox electrode calibration.

  • Guaranteed stable for 5 years
  • Unique, time saving CALPACKTM dosing bottle
  • Automatic buffer recognition with a majority of pH meters
  • Certified, traceable to N.I.S.T.

Accurate, stable buffers are critical for the calibration of pH and redox electrodes to achieve accurate measurements, particularly with modern pH meters incorporating GLP functions for recording electrode performance.

DURACAL Buffers are buffer solutions you can trust. They offer you many advantages over traditional buffer solutions including guaranteed stability (excellent stability of even pH 9.21 in air) and automatic buffer recognition so you use the correct buffer to calibrate. All of this in a unique time and money saving dispenser bottle.

The unique, easy-to-use, CALPACKTM dispensing bottle allows electrode calibration in the buffer bottle without contamination. In 4 easy steps, calibration is complete.

  • Dispense only the required quantity of buffer for calibration, no wasted buffer
  • No more searching for suitable containers
  • No more cleaning
  • No more risk of contamination

Duracal Buffers are guaranteed for 5 years from the date of production. During this time they retain a high buffer capacity for fast, stable calibrations. The pH 7.00 buffer is less sensitive to ions while the pH 9.21 buffer provides stability superior to conventional buffers.

The composition of DURACAL Buffers has been optimized so the temperature function is similar to that of conventional buffers. This guarantees that the automatic buffer recognition of most pH meters can be used without any problems.

DuracalTM Buffer Red Green Blue Yellow Gray
(Redox Buffer)
pH 4.01 ± 0.02 7.00 ± 0.02 9.21 ± 0.02 10.01 ± 0.02 465 mV ± 5 mV

Customers from Europe and Australia can use the Multi Channel Systems - Online Shop to order Warner products or create quotes.

Order No. Model No. Product Description USA Price Order
69-0083 pH 4.01 ±0.02, one 500 mL bottle, red solution Login Login
69-0084 pH 7.00 ±0.02, one 500 mL bottle, green solution Login Login
69-0085 pH 9.21 ±0.02, one 500 mL bottle, blue solution Login Login
69-0086 pH 10.01 ±0.02, one 500 mL bottle, yellow solution Login Login
69-0088 pH 4.01 ±0.02, three 500 mL bottles, red solution Login Login
69-0089 pH 7.00 ±0.02, three 500 mL bottles, green solution Login Login
69-0090 pH 9.21 ±0.02, three 500 mL bottles, blue solution Login Login
69-0091 pH 10.01 ±0.02, three 500 mL bottles, yellow solution Login Login

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