(CPE 905 : glass membrane)

Electrode Design

The model CPE 905 is a miniature combination pH electrode with internal Ag/AgCl, 3M Cl- reference element and glass sensing membrane. It is fabricated from a miniaturized pH sensitive glass bulb which is internally junctioned with a chloridized, high-purity silver wire immersed in a contacting solution of 3M potassium chloride that is saturated with silver chloride. The electrode is a compact 6 cm long with a narrow 2.5 mm O.D. glass barrel and 1.2 mm O.D. pH sensitive tip. Each CPE 905 has a 100 mL reference solution capacity and a very slow 5 mL/day flow rate. Electrodes are outfitted with BNC connectors that fit most pH Meters and each is supplied with 25 ml reference filling solution, a filling capillary, and an instruction sheet.

General Specifications:

Electrode Body Black Delrin
Total Length 9.5 cm
Lead Length 1 m
Electrode Barrel O.D. 2.5 mm
Electrode Tip O.D. 1.2 mm
Immersion Depth 2.0 mm
Response Time 10 sec
Temperature Range -4C to 75C
pH Range 0 - 14

cpel.JPG (28521 bytes)

Applications in Research and Development
  • As a pH sensitive electrode in any miniature electrochemical cell.
  • For pH measurements in small sample volumes during chemical and/or biosensor assay development.
  • Fits 96 and 384 well micotitre plates and microcentrifuge tubes.


Last Revision 08/12/01; (c) 2000-2001 ABTECH Scientific, Inc.

Contact: Ann M. Wilson, Manager,
Applications Development ABTECH Scientific, Inc.
911 East Leigh Street G24, Richmond, Virginia 23219
Telephone Number: +1-804-783-7829 Fax Number: +1-804-783-7830

News and Noteworthy || Company Profile || R & D Capabilities || Lab Products || Advanced Products || Company Directory || Personnel Bio's || Career Opportunities || Press Releases || Investor Relations || Related Links || Download Files || Price Lists