L1 /
4
CH3041
SPECTROMETERS I
Noise When
we run a blank spectrum the baseline is not absolutely flat.
The fine jitters are noise
(electronic).
The fine jitters are noise
(electronic).
S/N 2.4
Signal to Noise
• The ratio of the size of the analyte
signal
to the peak to peak noise. eg. S/N 50:1
to the peak to peak noise. eg. S/N 50:1
Sensitivity
• This is the S/N response of the instrument
per unit weight of the analyte.
eg. S/N 50:1 with 10pg HFB
per unit weight of the analyte.
eg. S/N 50:1 with 10pg HFB
Resolution
The ability of the spectrometer to
separate
two closely spaced peaks: Dl
two closely spaced peaks: Dl
220
222 nm
