• pH Detector for FIA, HPLC, IEF and Other Low Volume Flow pH Measurements
  • pH Detector for FIA, HPLC, IEF and Other Low Volume Flow pH Measurements
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pH Detector for FIA, HPLC, IEF and Other Low Volume Flow pH Measurements

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  • Price

    Price on request   ≥1piece

  • Model Number

    S450 Series

  • Data Sheet

  • Package

    Original packaging

  • Specs

    S450 Series

  • Quantity

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Product Description

pH Detector for FIA, HPLC, IEF and Other Low Volume Flow pH Measurements


Parts covered by this product data sheet include:

FC45C, FC47C, FC49K, FC51K, 970282, S450CD, 970282,970277


pH Detector Features
• Fast response!
• Choice of 200uL or ultra-low volume 50uL flow cells
• Acrylic or PVDF (biocompatible) materials of construction
• Supplied with flangeless 1/4-28 fittings for 1/16” OD for tubing
• Use with Flat-Surface Easy-To-Clean Electrode
• Model available for 100psi use


pH Detector Description
Sensorex manufactures fast response 50 and 200 microliter internal volume flow cells for pH measurement. All cells are made of clear Acrylic or Kynar (PVDF). Designs include 1/16" inlet and outlet fittings. All cells use the standard, economical Sensorex 450CD Flat Surface Combination pH/Reference Electrode or a special version of 450CD with 100psig pressure tolerance (model 970277).

The pH Detectors are designed for use with a variety of instrumental techniques such as FIA, HPLC and IEF and are also used to continuously monitor the pH of low volume flows in bench scale chemical systems.

Both the 50 and 200 microliter internal volume flow cells are available in acrylic or PVDF and are supplied with inlet and outlet fittings sized for standard 1/16" OD tubing. The cells' ports have 1/4-28 threads which accept a variety of other tube fittings.

Very low internal volumes are achieved by using a flat surface pH electrode located at the top of the flow cavity. The resulting rectangular cross-section flow path has no protruding parts which could interfere with a clean sweeping flow. The result of this design is the fast system response shown on the performance curves on page 2.

The Flat Surface Electrode, Sensorex Model 450CD, is a combination pH/Reference electrode with double reference junction design. It includes both a pH and reference half cell. The reference electrode is a sealed, gel-filled design and includes a peripheral, semi-porous polyethylene junction.


pH Detector Specifications

pH Range
 0-14 pH Na+ error >12.3 pH)
Wetted Materials
 Acrylic, PVDF, pH Glass, epoxy, BUNA-N
Max Temperature
 100 degrees C
Max Pressure
 60 psig except for 970282 = 100 psig
Cable Length
 30 inches 
Connectors
 Choice of BNC
Others available at additional cost.



pH Detector Ordering Information

Flow cells
Part number 
 Description
FC45C
 200uL low volume acrylic flow cell. Includes 2 each 1/16” tube fittings
FC47C
 50uL low volume acrylic flow cell. Includes 2 each 1/16” tube fittings
FC49K
 50uL low volume PVDF flow cell. Includes 2 each 1/16” tube fittings
FC51K
 200uL low volumePVDF flow cell. Includes 2 each 1/16” tube fittings
970282
 50uL low volume PVDF flow cell for 100 psig use. Includes 2 each 1/16” tube fittings

Electrodes
Part number
 Description
S450CD
 60 psig rated flat pH electrode with double reference junction,
30 inches of cable and connector choice
970277
 100 psig rated flat pH electrode with double reference junction,
30 inches of cable and connector choice. For use with flow cell 970282