Franz Cells

PermeGear vertical glass diffusion cells are classic Franz Cells. Standard orifice diameters are 5mm, 7mm, 9mm, 11.28mm, 15mm, 20mm and 25mm, other diameters are custom. The word “orifice” as it refers to a Franz Cell is the area at the top of the receptor chamber that is exposed to the membrane or device through which transport or permeation is being studied. Corresponding volumes from 5ml to 20ml are standard and are listed under Typical Dimensions. Clamping is achieved through o-ring joints, flat ground (ground o-ring) joints and flat flange joints. We manufacture our own clamps for the most popular Franz Cell models. Our clamps are all stainless steel and are much easier to use than clamps from other suppliers.

We welcome requests for custom cells!

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Contact us at 484-851-3688 or fill out the form below.

Part numbers are generally made up of 2-character codes separated by hyphens.

1st code is cell type: 

  • 4G is for a jacketed cell, 6G is for an unjacketed cell

2nd code is joint type:

  • 00 is an o-ring joint
  • 01 is a flat ground (ground o-ring) joint
  • 02 is a flat flange joint
  • 03 is a spherical joint generally used for corneal work.

3rd code is glass type: 

  • 00 is for clear glass
  • 01 is for amberized glass

4th code is orifice diameter in millimeters, 05 through 25

5th code is receptor volume in ml, 03 through 20

6th code is optional and indicates:

  • VD is for a volatile donor compartment with ground glass joint and Teflon stopper
  • VDFT is for a flow through volatile donor compartment with ground glass joint and Teflon stopper
  • VDOC is for an completely occluded volatile donor compartment
  • VDOF is for flow thru volatile donor compartment without ground glass joint and Teflon stopper

7th code only follows the 6th VD or VDFT codes if a stoppered donor is required:

  • 0725 is for a 7/25 ground glass joint with teflon stopper
  • 1420 is for a 14/20 ground glass joint with teflon stopper
  • FL is for a female luer joint with stopper

 

Examples

#4G-01-00-09-05 describes a clear 9mm jacketed cell with a flat ground (ground o-ring) joint and 5ml receptor volume.

#6G-02-01-09-03 describes an amber 9mm unjacketed cell with a flat flange joint and 3ml receptor volume.

#4G-03-00-0918-10 describes a clear 9mm jacketed cell with a 18mm diameter spherical joint and 10ml receptor volume.

#4G-01-00-11.28-08-VD-0725 describes a clear 11.28mm jacketed cell with a flat ground (ground o-ring) joint and 8ml receptor volume with a volatile donor chamber that has a 7/25 Teflon stopper.

#4G-01-01-20-15-VDFT-1420 describes an amber 20mm jacketed cell with a flat ground (ground o-ring) joint and a 15ml receptor volume with a volatile donor chamber that has flow porting and a 14/20 Teflon stopper.

These dimensions are for standard Franz cells. The joint variety does not affect the volume. We can modify most of these parameters within the practical limits of blown glass. Do not hesitate to inquire if your studies need something other than what is listed here. The term “cell” for sales and pricing purposes includes the two glass components, the clamp for the joint, and the stirbar.

 

Standard jacketed cells with clamp and stirbar

  • 5mm:5ml volume – .20 square cm area
  • 7mm:5ml volume – .38 square cm area
  • 9mm:5ml volume – .64 square cm area
  • 11.28mm:8ml volume – 1.00 square cm area
  • 15mm:12ml volume – 1.77 square cm area
  • 20mm:15ml volume – 3.14 square cm area
  • 25mm:20ml volume – 4.91 square cm area

Standard unjacketed cells with clamp and stirbar

  • 5mm:5ml volume – .20 square cm area
  • 7mm:5ml volume  – .38 square cm area
  • 9mm:5ml volume – .64 square cm area
  • 11.28mm:8ml volume – 1.00 square cm area
  • 15mm:12ml volume- 1.77 square cm area
  • 20mm:15ml volume – 3.14 square cm area
  • 25mm:20ml volume  – 4.91 square cm area

 

Download the PermeGear guide to Standard Franz Cell Dimensions (PDF)

 

V-Series Stirrers are for jacketed Franz Cells.

  • V9A 9-station Franz Cell Stirrers – 50″ (127cm) long
  • V9-C Compact 9-station Franz Cell Stirrers – 31″ (79cm) long
  • V6-CA and V6-CB 6-station Franz Cell Stirrers – 18″ (46cm) long
  • V3A and V3B 3-station Franz Cell Stirrers – 20″ (51cm) long

 

More information will be added shortly.