1220 Infinity II LC System User Manual 133
Detector Description
8
Agilent 1220 Infinity II LC Diode Array Detector (DAD)
Figure 45 Wavelength Selection for Ratio Qualifiers
Figure 46 Selectivity by Ratio Qualifiers
In a four-component mixture, only biphenyl was recorded. The other three
peaks were suppressed because they did not meet the ratio-qualifier criterion
and therefore the output was set to zero. The characteristic wavelengths
249 nm (λ
1
) and 224 nm (λ
2
) were found from the spectra shown in Figure 45
on page 133. The ratio range was set at 2 – 2.4 (2.2 ±10%). Only when the ratio
between 249 and 224 nm was within this range, is the signal plotted. Of all
four peaks, only the third fulfilled the criterion (Figure 46 on page 133). The
others were not plotted.
To Next Page
Loading...
Need help?
General
