Mantis 5000 Specifiche Scaricare il pdf (Pagina 34)

8. Click the Setup button.

9. From the Setup menu, set the following parameters:

Cary tab

X mode: Mode

anometers

X mode: Start 700

X mode: Stop 400

Y mode: Mode % R

Y mode: Y min -5.00

Y mode: Y max 110.00

Scan controls: Ave time (s) 0.100

Scan controls: Data interval (nm) 1.000

Scan controls: Scan rate (nm/min)600.00

Options tab

SBW/Energy: Fixed SBW ON

SBW/Energy: SBW (nm) 2.00

SBW/Energy: Beam mode Double

SBW/Energy: Slit height Reduced

Source: Lamps UV-Vis

Source: Source changeover (nm) 350.0

Baseline tab

Correction Zero/baseline correction

Autostore tab

File Storage: Storage Storage on (Prompt at start)

10. Select the 'Baseline' button from the Scan dialog box. Follow the on-screen

prompts to perform a 100%T baseline scan and a 0%T baseline scan.

Hot Tip

When collecting the 0%T baseline scan do not block the beam, instead remove

the PTFE reference disk from the reflectance port and allow the light to be

trapped by the Extended sample compartment.

11. Once the baseline correction is complete, the Ordinate status display in the top

left corner of the dialog box will show 'Zero baseline' in red text.

12. Clamp the sample over the reflectance port. The sample should be

homogeneous, substantially flat, and large enough to completely cover the

image.

Hot Tip

Use the sample mount ledge for added control over the positioning of your

sample. To use the ledge (see figure 16 ) slide it onto the posts fitted at either

the reflectance or transmission ports.

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Mantis 5000 Specifiche Pagina 34