Buffers

Buffers

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™ pH and Redox Buffer solutions are the buffers you can trust. They offer you many advantages over traditional buffer solutions: guaranteed five year stability, excellent stability of even pH 9.21 in air, see Figure 1, automatic buffer recognition so you use the correct buffer to calibrate. All of this in a unique time saving, money saving dispensing bottle.

Item# Description U.S. List Price Quantity
72-7141 Buffer Set, One 500 ml Bottle of 4.01, 7.00 and 10.01
69-0092 Buffer Set, One 500 ml Bottle of 4.01, 7.00 and 9.21
69-0091 Duracal™ Buffer, pH 10.01 ±0.02, three 500 mL bottles, yellow solution
69-0090 Duracal™ Buffer, pH 9.21 ±0.02, three 500 mL bottles, blue solution
69-0089 Duracal™ Buffer, pH 7.00 ±0.02, three 500 mL bottles, green solution
69-0088 Duracal™ Buffer, pH 4.01 ±0.02, three 500 mL bottles, red solution
72-7140 Duracal™ Buffer, Redox +475, 1 Bottle
69-0086 Duracal™ Buffer, pH 10.01 ±0.02, one 500 mL bottle, yellow solution
69-0085 Duracal™ Buffer, pH 9.21 ±0.02, one 500 mL bottle, blue solution
69-0084 Duracal™ Buffer, pH 7.00 ±0.02, one 500 mL bottle, green solution
69-0083 Duracal™ Buffer, pH 4.01 ±0.02, one 500 mL bottle, red solution
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• Stable, guaranteed 5 year buffer lifetime


• Unique time saving CALPACK™ dosing bottle


— No more searching for suitable containers


— No more cleaning


— No more risk of contamination


• Economical and easy to dispense only the required quantity of buffer for calibration, no wasted buffer


• 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™ pH and Redox Buffer solutions are the buffers you can trust. They offer you many advantages over traditional buffer solutions: guaranteed five year stability, excellent stability of even pH 9.21 in air, see Figure 1, automatic buffer recognition so you use the correct buffer to calibrate. All of this in a unique time saving, money saving dispensing bottle.


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. See Figure 1 for a comparison of DURACAL™ and conventional buffer stability when subjected to prolonged air exposure.


The unique, easy-to-use, CALPACK™ dispensing bottle allow electrode calibration in the buffer bottle without contamination. In 4 easy steps, calibration is complete, see Figure 2. It’s that simple! No more searching for a suitable container, no more cleaning, no more risk of contamination, and no more wasted buffer from overfilling a container. 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.
Specifications72-714169-009272-7140
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690083-87_iuc_150.jpg690083-87_iuc_150.jpg690083-87_iuc_150.jpg690083-87_iuc_150.jpg
690083-87_iud_150.jpg690083-87_iud_150.jpg690083-87_iud_150.jpg690083-87_iud_150.jpg
Color  Yellow
Redox  475
Volume Metric500 x 3500 x 3500
pH4.01, 7.00, 10.014.01, 7.00, 9.21