Analog Filtering Exercise #2
- Page ID
- 77542
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- Below is an HPLC peak with 60 Hz noise.
Estimate the frequency of the analyte signal by assuming that the HPLC peak is one-half of a sine wave. Double the peak width to obtain the period of the signal, multiply by 60 to convert from minutes to seconds, then take the inverse to obtain the signal frequency in Hertz.
If only a 47 μF capacitor is available in your lab, design a RC filter that will improve the S/N of the chromatogram by a factor of three while having a minimal effect on the signal (<0.5% decrease in signal)