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Ocean Optics DTS User Manual

Page 23

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Quick Start

Polychromix DTS

TM

Near-Infrared Spectrometer

3-3

Operator’s Manual

Document Number 04-91-0201-00 Rev A

Figure 3-3: Absorbance Spectrum of Polystyrene

If you are using an integrating sphere:

a) Set the scan count to 8 using the field adjacent to the

button.

b) Place a reflectance reference on the integrating sphere (e.g. Spectralon

TM

or roughened gold).

c) Verify that the

button is depressed and press the

button. A background spectrum will be collected.

d) Place a vial filled with a solid (e.g. sugar) over the opening of the

integrating sphere.

e) Press the

button and then press the

button. The

spectrum will be collected and displayed (Figure 3-4). The shape of the
spectrum will depend on the wavelength range of the spectrometer and
the sample that is employed. At this juncture, the critical thing is to view a
spectrum that is different than the background spectrum collected above.