Waters 2489, Overview And Maintenance Manual

Page: 86 / 150

June 11, 2015, 715004752 Rev. A
Page 86
Figure 3–31: Series of scans of anthracene in acetonitrile
3.3.3 Storing a spectrum
Once you run a spectrum, you can store it for later review, subtraction, or playback.
You can store as many as three spectra.
To store a spectrum:
1. From the graphic display of a sample scan, return to the first Scan screen by
pressing SCAN (Shift Chart-mark).
2. Press 2, Store last scan.
Tip:
When you select Store last scan, you are storing the zero scan and the
sample scan as a pair.
Sample scan
200 nm to 400 nm
–0.001 AU to 0.5 AU
anthracene
Zoom of sample scan
200 nm
to 300 nm
–0.001 AU to 0.5 AU
anthracene, 230 nm to 270 nm
λ
2 changed to 300 nm
Zoom of sample scan
230 nm to 270 nm
–0.001 AU to 0.5 AU
anthracene, 250 nm
λ 1 changed to 230 nm
λ
2 changed to 270 nm
AU1 and AU2 on auto
Zoom of sample scan
300 nm to 400 nm
–0.001 AU to 0.025 AU
anthracene, 330 nm to 400 nm
λ 1 changed to 300 nm
λ
2 changed to 400 nm
AU1 and AU2 on auto