public override MassSpectrum GetMzSpectrum(int spectrumNumber)
{
var spectrum = _activeMSExperiment.GetMassSpectrum(spectrumNumber);
double[] x = spectrum.GetActualXValues();
double[] y = spectrum.GetActualYValues();
double conversion = spectrum.GetCountsConversionFactor();
var peaks = _activeMSExperiment.GetPeakArray(spectrumNumber);
return null;
}