Short path length demountable cells (Type 20)

Product / Spectroscopy

The Type 20 cell is designed for applications where a short path length and large window surface area are needed, especially with opaque or viscous solutions. It consists of one fully fused component combining one window and the sides of the cell that form the path length, and a separate second window so the cell can be taken apart for cleaning. Type 20/O is open at one end; Type 20/C is completely enclosed when the window is in place. The manufacturer states the windows are polished so flat that they form a seal on contact, best with viscous and aqueous samples. Cell holder CH-2049 is recommended to keep the cell together.

Product group: UV/VIS and fluorometer cells
Brand: Starna Scientific

Manufacturer website

Source: manufacturer website (opens in a new tab) · Image: manufacturer website

Order codes and options

10 codes

Short path length demountable cells (Type 20) order codes and properties
Code	Window material	Path length	Nominal volume
20/O-Q-0.01	Spectrosil quartz (far UV) (170-2700 nm)	0.01 mm	0.004 mL
20/O-Q-0.1	Spectrosil quartz (far UV) (170-2700 nm)	0.1 mm	0.04 mL
20/O-Q-0.2	Spectrosil quartz (far UV) (170-2700 nm)	0.2 mm	0.08 mL
20/O-Q-0.5	Spectrosil quartz (far UV) (170-2700 nm)	0.5 mm	0.19 mL
20/O-Q-1	Spectrosil quartz (far UV) (170-2700 nm)	1 mm	0.39 mL
20/C-Q-0.01	Spectrosil quartz (far UV) (170-2700 nm)	0.01 mm	0.003 mL
20/C-Q-0.1	Spectrosil quartz (far UV) (170-2700 nm)	0.1 mm	0.03 mL
20/C-Q-0.2	Spectrosil quartz (far UV) (170-2700 nm)	0.2 mm	0.06 mL
20/C-Q-0.5	Spectrosil quartz (far UV) (170-2700 nm)	0.5 mm	0.15 mL
20/C-Q-1	Spectrosil quartz (far UV) (170-2700 nm)	1 mm	0.31 mL

Technical specifications

Short path length demountable cells (Type 20) technical specifications
Window materials	Spectrosil quartz
Path length range (mm)	0.01 - 1 mm
Nominal volume range (mL)	0.003 - 0.39
Number of variants	10

Source: starnacells.com (opens in a new tab) · Starna Cells 2026 Catalog, p. 14 (dimension table). Values come from the manufacturer and are confirmed at the quotation stage.