Semi-micro cells (Type 9 and 9B)

Product / Spectroscopy

The volume of a semi-micro cell is approximately 40 % of an equivalent path length standard cell. Walls parallel to the beam can be clear or non-transmitting black (self-masking), which improves sensitivity. Because the interior width is reduced to 4 mm, it is essential that the light beam passes centrally through the sample compartment. Supplied with a PTFE cover. Unless specifically designed otherwise, all cells are assembled by fully fused construction without intermediate adhesives and can generally be used with pressure differentials of up to three atmospheres. Standard window thickness is 1.25 mm and the standard path length tolerance is ±0.01 mm (catalog general specifications).

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

13 codes

Semi-micro cells (Type 9 and 9B) order codes and properties
Code	Window material	Path length	Nominal volume
9-SOG-10	Special optical glass (320-2500 nm)	10 mm	1.4 mL
9-Q-5	Spectrosil quartz (far UV) (170-2700 nm)	5 mm	0.7 mL
9-Q-10	Spectrosil quartz (far UV) (170-2700 nm)	10 mm	1.4 mL
9/9-Q-10	Spectrosil quartz (far UV) (170-2700 nm)	10 mm	1.16 mL
9-Q-20	Spectrosil quartz (far UV) (170-2700 nm)	20 mm	2.8 mL
9-Q-40	Spectrosil quartz (far UV) (170-2700 nm)	40 mm	5.6 mL
9-Q-50	Spectrosil quartz (far UV) (170-2700 nm)	50 mm	7 mL
9B-Q-5	Spectrosil quartz (far UV) (170-2700 nm)	5 mm	0.7 mL
9B-Q-10	Spectrosil quartz (far UV) (170-2700 nm)	10 mm	1.4 mL
9B9-Q-10	Spectrosil quartz (far UV) (170-2700 nm)	10 mm	1.16 mL
9B-Q-20	Spectrosil quartz (far UV) (170-2700 nm)	20 mm	2.8 mL
9B-Q-40	Spectrosil quartz (far UV) (170-2700 nm)	40 mm	5.6 mL
9B-Q-50	Spectrosil quartz (far UV) (170-2700 nm)	50 mm	7 mL

Technical specifications

Semi-micro cells (Type 9 and 9B) technical specifications
Window materials	Special optical glass, Spectrosil quartz
Path length range (mm)	5 - 50 mm
Nominal volume range (mL)	0.7 - 7
Number of variants	13

Source: starnacells.com (opens in a new tab) · Starna Cells 2026 Catalog, p. 6 (dimension table) · starnacells.com (opens in a new tab) · starnacells.com product type page. Values come from the manufacturer and are confirmed at the quotation stage.