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10.2. Luer Lock Liquids Anvil
A Luer Lock Liquids Anvil (22) is also available for longer duration
experiments with liquids. Figure 10-3
shows top (left) and underside
(right) views of the Luer Lock Liquids Anvil (22).
Figure 10-3: Luer Lock Liquids Anvil
The anvil (22) is placed centrally over the ATR crystal and then clamped
into position using the Flat Anvil (17) (see page 20). A liquid sample can
then be injected into the anvil (22) through either one of the Luer port
connections and then sealed using PTFE caps in the Luer port
connections.
10.3. The Specular Reflectance Puck
Flat surface films can be measured by the specular reflectance
technique. An optional specular reflectance puck assembly (23) with an
open aperture hole of 3.8 mm diameter allows the IR light beam to be
projected directly to a solid sample surface.
A reference mirror (24) is also provided with the specular reflectance
puck (24) for collection of a background spectrum, by placing the
reflective surface of the mirror (24)
face down
over the aperture hole.
The sample should then be placed over the hole and a sample spectrum
recorded.
