Cylindrical cuvettes are preferred for turbidity and nephelometric measurements because the round walls minimise stray-light artefacts that a flat square face can cause. Fused silica keeps them usable across UV and visible ranges.
| Outer diameter (OD) | 22 mm (standard); custom on request |
|---|---|
| Inner diameter (ID) | 20 mm (standard) |
| Path length | 10 / 20 / 50 mm (standard); custom on request |
| Volume | 3.5 / 7 / 17.5 mL (typical for 10/20/50 mm cells) |
| Bottom | Flat (standard); round-bottom available on request |
| Material | JGS1 fused silica (quartz) |
In nephelometry the detector reads light scattered at 90°, and a cylindrical cell gives more uniform scatter geometry than a square cell. This makes cylindrical cuvettes the standard for turbidity and haze measurements.
Match the outer diameter to your instrument's cell holder and the path length to your concentration range. Flat-bottom versions suit stirred or settled samples; round-bottom versions improve mixing.
Cylindrical cells are preferred for turbidity and nephelometry because the round wall reduces stray-light errors that a flat face can introduce. Square cells are better for standard absorbance in rectangular beams.
Yes, when made from fused silica (quartz) like these JGS1 cells. Glass cylindrical cells would be limited to the visible range.