Holder for semi-microcells and microcells
7 Holder for semi-microcells and microcells
7.1 Description and use
Semi-micro and microcells have the standard outside width of 12.5 mm, but a reduced
inside width or filling aperture of 1 to 4 mm. This requires accurate alignment of the cell
to the sample and, if necessary, to the reference beam of the SPECORD
®
.
Three cell holders are available that meet this requirement for precise alignment to the
beam:
1. The non-adjustable holder with a fixed mask of 2.5 mm diameter for semi-microcells
of glass or quartz and a beam height of 8.5 mm.
2. The non-thermostatted holder for glass or quartz microcells with black sidewalls.
This holder is adjustable both vertically and at right angles to the beam axis. The
beam heights possible are 8.5 mm and 15 mm.
3. The non-thermostatted holder for glass or quartz microcells with black sidewalls.
This holder is adjustable at right angles to the beam axis. The beam height is 8.5
mm.
7.2 Holder for semi-microcells
Pathlength of semi-microcell max. 10 mm
Height of beam center 8.5 mm
External width of cell 12.5 mm
Minimum filling level 15 mm
Fig. 7-1 Holder for semi-microcells
1. Slip this holder onto the mount for cells (Fig. 1-1/ 10) or the universal holder (→
Section "Universal holder" p. 11) and push it down as far as it will go.
2. When you insert the semi-microcell, take care that the leaf spring definitely presses
the cell against the left-hand wall.
User’s Manual SPECORD 200/205/210/250 – Accessories 07/2005 21
Analytik Jena AG
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