Mantis 5000 Especificaciones descargar pdf (Pagina 37)

Figure 31: The clip style variable angle sample

holder.

Figure 32: The jaw style centre

mount.

The width limitation of the jaw style sample holder depends on the thickness of the

sample and the maximum angle of incidence the application requires. The jaws protrude

12 mm from the frame of the sample holder. If possible, the reflectance standard and

sample should be loaded so the reflecting surface is even with the front edge of the jaws.

This will place the front surface at the rotational axis of the sample holder.

Centre-Mount Cuvette Sample Holder

The transmission port cuvette holder is used for measuring the transmission of a liquid

sample. The centre-mount cuvette sample holder provides a liquid sample measurement

capability to the DRA accessory that includes the scattered component of transmitted

radiation. A centre-mounted cuvette allows the simultaneous measurement of a turbid

sample diffuse transmission and reflectance, so that absorbance can be derived in one

easy measurement. The device is ideal for measuring turbid samples such as sea water,

proteins, and other biological solutions. Measurements performed with this device are in

the 0°/d geometry. Since the cuvette is fixed at 0° angle of incidence, the specular

component of reflection is directed out of the sphere through the transmission port.

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Mantis 5000 Especificaciones Pagina 37