Description
The Type 31B range has path lengths 0.01mm to 5mm, with a sample compartment aperture of 13mm. The structure of this cylindrical cell allows for lower volume usage as compared to the requirements of the Type 31 cells.
Please note when filling cylindrical cells, to avoid damage to the windows, do not fill cell to the top. Leave an air gap otherwise the windows will be broken by the hydraulic pressure of the stopper being inserted. PTFE stoppers are supplied with these cells as shown in drawing below.
The tubulations are 7mm OD x 5mm ID.
| Description: | Cylindrical Cell, Short Pathlength |
|---|---|
| Physical Configuration: | Cylindrical cell with two stoppered inlet ports, small sample volume. The circumference of the sample chamber is black quartz to maximize sensitivity. |
| Primary use: | Absorbtion measurement in useable range (see charts below) |
| Clear windows: | Two |
| Instrument: | Can be used with spectrophotometers that can use cylindrical cells |
| Pathlengths available: | 0.01, 0.05,0.1, 0.2, 0.5, 1, 2, 5mm |
| Aperture: | 13mm diameter through sample compartment |
| Cell top: | 2 PTFE stoppers with "ground type" fitting. |
Window material Spectrosil® Quartz or equivalent, useable range: 170 to 2700nm.
| Starna Catalog No |
Path Length (mm) |
Ext Width (mm) |
Ext Length (mm) |
Interior Width (mm) |
Interior Length (mm) |
Nominal Volume (ml) |
Number of Stoppers |
Number Polished Windows |
| 31B-Q-0.01 | 0.01 | 22 | 22.5 | 13 | 0.01 | 0.140 | 2 | 2 |
| 31B-Q-0.05 | 0.05 | 22 | 22.5 | 13 | 0.05 | 0.151 | 2 | 2 |
| 31B-Q-0.1 | 0.1 | 22 | 22.5 | 13 | 0.1 | 0.165 | 2 | 2 |
| 31B-Q-0.2 | 0.2 | 22 | 22.5 | 13 | 0.2 | 0.194 | 2 | 2 |
| 31B-Q-0.5 | 0.5 | 22 | 22.5 | 13 | 0.5 | 0.278 | 2 | 2 |
| 31B-Q-1 | 1 | 22 | 22.5 | 13 | 1 | 0.420 | 2 | 2 |
| 31B-Q-2 | 2 | 22 | 22.5 | 13 | 2 | 0.703 | 2 | 2 |
| 31B-Q-5 | 5 | 22 | 22.5 | 13 | 5 | 1.552 | 2 | 2 |
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